AUTOMATIC TRANSMISSION
(5AT)
(DIAGNOSTICS)
asieps_tobira.book 2 ページ
２００５年９月２４日 土曜日 午後４時２７分
Basic Diagnostic Procedure
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
1
2
3
4
5
Step
CHECK PRE-INSPECTION.
1) Ask the customer when and how the trouble occurred using the interview checklist.
<Ref. to 5AT(diag)-4, Check List for Interview.>
2) Before performing diagnosis, inspect the
following items which may influence AT problems.
• General Inspection <Ref. to 5AT(diag)-5,
INSPECTION, General Description.>
• Oil leakage
• Stall speed test <Ref. to 5AT-29, Stall Test.>
• Line pressure test <Ref. to 5AT-31, Line
Pressure Test.>
• Transfer Clutch Pressure Test <Ref. to 5AT32, Transfer Clutch Pressure Test.>
• Time Lag Test <Ref. to 5AT-30, Time Lag
Test.>
• Road Test <Ref. to 5AT-28, Road Test.>
• Inhibitor Switch <Ref. to 5AT-45, Inhibitor
Switch.>
CHECK SPORT INDICATOR LIGHT.
After the ignition switch is turned to ON, wait
for at least 2 seconds.
CHECK SPORT INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Check the SPORT indicator light. <Ref. to
5AT(diag)-24, INSPECTION, SPORT Indicator
Light Display.>
3) After the ignition switch is turned to ON,
wait for at least 2 seconds.
CHECK DTC.
Read the DTC. <Ref. to 5AT(diag)-19, OPERATION, Read Diagnostic Trouble Code (DTC).>
NOTE:
If the communication function of Subaru Select
Monitor cannot be executed normally, check
the communication circuit. <Ref. to 5AT(diag)26, COMMUNICATION FOR INITIALIZING IMPOSSIBLE, Diagnostic Procedure for Subaru
Select Monitor Communication.>
PERFORM GENERAL DIAGNOSTICS.
1) Inspect using “Diagnostic Procedure without Diagnostic Trouble Code (DTC)”. <Ref. to
5AT(diag)-125, Diagnostic Procedure without
Diagnostic Trouble Code (DTC).>
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode. <Ref. to
5AT(diag)-20, Inspection Mode.>
4) Display the DTC.
Check
Yes
Is the unit that is thought to
Go to step 2.
influence the AT problem working properly?
No
Repair or replace
each item.
Does the SPORT indicator
light illuminate?
Go to step 4.
Go to step 3.
Does the SPORT indicator
light blink?
Go to step 4.
Go to step 5.
Is DTC displayed?
Go to step 6.
NOTE:
Record all DTC.
Go to step 5.
Is DTC displayed?
Go to step 6.
Inspect using
“General Diagnostic Table”. <Ref. to
5AT(diag)-134,
General Diagnostic Table.>
5AT(diag)-2
asieps_tobira.book 3 ページ
２００５年９月２４日 土曜日 午後４時２７分
Basic Diagnostic Procedure
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
6
Step
Check
PERFORM DIAGNOSIS.
Is DTC displayed?
1) Inspect using the “Diagnostic Procedure
with Diagnostic Trouble Code (DTC)”. <Ref. to
5AT(diag)-32, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
NOTE:
For DTC table, refer to “List of Diagnostic Trouble Code (DTC).” <Ref. to 5AT(diag)-29, List of
Diagnostic Trouble Code (DTC).>
2) Repair the trouble cause.
3) Perform the Clear Memory Mode.
4) Perform the Inspection Mode. <Ref. to
5AT(diag)-20, Inspection Mode.>
5) Display DTC.
5AT(diag)-3
Yes
Inspect using the
“Diagnostic Procedure with Diagnostic Trouble Code
(DTC)”. <Ref. to
5AT(diag)-32,
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
No
Inspect using
“General Diagnostic Table”. <Ref. to
5AT(diag)-134,
General Diagnostic Table.>
asieps_tobira.book 4 ページ
２００５年９月２４日 土曜日 午後４時２７分
Check List for Interview
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Check the following item when problem has occurred.
NOTE:
Use copies of this page for interviewing customers.
Customer’s name
Date of sale
Date of repair
Transmission model
Odometer reading
Symptom
Transmission
V.I.N.
km (miles)
No up-shift
No down-shift
No kick down
Vehicle does not move (
Any position
Particular position)
Lock-up malfunction
Noise or vibration
Shift shock or slip
Select lever does not move
Others
(
)
Frequency
Continuous
Weather
Fine
Others
Cloudy
(
Place
Vehicle speed
AT warning light (SPORT indicator
light)
Select lever position
Rainy
times a day)
Snowy
)
Highland
Others
Suburbs
(
Ambient air temperature
Intermittent (
Inner city
Uphill
Rough road
)
Hot
Warm
Cool
Cold
km/h (MPH)
Blinks continuously
P
R
N
Driving condition
Not affected
At racing
When decelerating
Manual mode
ON
Not blink
D
Manual mode
At starting
When accelerating
While turning ( RH/
LH)
OFF
5AT(diag)-4
While idling
While cruising
asieps_tobira.book 5 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Description
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3. General Description
3. ATF LEVEL
A: CAUTION
Make sure that ATF level is the specified amount.
<Ref. to 5AT-25, INSPECTION, Automatic Transmission Fluid.>
CAUTION:
• All the airbag system wiring harnesses and
connectors are colored yellow. Do not use an
electric test equipment to check these circuits.
• Be careful not to damage the airbag system
wiring harness when performing diagnostics or
servicing the TCM.
• Measurement
When measuring the voltage and resistance of the
ECM, TCM or each sensor, use a tapered pin with
a diameter of less than 0.64 mm (0.025 in) in order
to avoid poor contact. Do not insert a pin of more
than 0.65 mm (0.026 in) diameter.
L
F
HOT
(A)
(C)
F
(D)
COLD
L
• Supplemental Restraint System “Airbag”
The airbag system wiring harness is routed near
the TCM.
(E)
(B)
(C)
(D)
AT-03276
(A)
(B)
(C)
(D)
(E)
B: INSPECTION
Level gauge
Inspection position when “HOT”
Upper level
Lower level
Inspection position when “COLD”
1. BATTERY
Measure the battery voltage and specific gravity of
the electrolyte.
Standard voltage: 12 V or more
4. FRONT DIFFERENTIAL OIL LEVEL
Make sure the front differential oil level is the specified amount. <Ref. to 5AT-27, INSPECTION, Differential Gear Oil.>
Specific gravity: 1.260 or more
2. TRANSMISSION GROUND
F
Make sure that the ground terminal bolt is tightened
securely.
L
Tightening torque:
13 N·m (1.3 kgf-m, 9.4 ft-lb)
(A)
(B)
AT-00317
(A) Upper level
(B) Lower level
AT-01464
5AT(diag)-5
asieps_tobira.book 6 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Description
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5. OPERATION OF SHIFT SELECT LEVER
Make sure there is no noise, dragging or contact
pattern in each select lever range.
WARNING:
Stop the engine while checking operation of the
select lever.
AT-02048
C: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION
TOOL NUMBER
18482AA010
DESCRIPTION
CARTRIDGE
REMARKS
Troubleshooting for electrical system.
22771AA030
SUBARU SELECT
MONITOR KIT
Troubleshooting for electrical system.
ST18482AA010
ST22771AA030
2. GENERAL TOOL
TOOL NAME
Circuit tester
Oscilloscope
REMARKS
Used for measuring resistance, voltage and current.
Used for measuring the sensor.
5AT(diag)-6
asieps_tobira.book 7 ページ
２００５年９月２４日 土曜日 午後４時２７分
Electrical Component Location
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
4. Electrical Component Location
A: LOCATION
1. CONTROL MODULE
(1)
(3)
(4) (2)
(5)
AT-02049
(1)
(2)
Engine control module (ECM)
SPORT indicator light (AT warning
light)
(3)
Transmission control module
(TCM)
5AT(diag)-7
(4)
(5)
Data link connector
Body Integrated unit
asieps_tobira.book 8 ページ
２００５年９月２４日 土曜日 午後４時２７分
Electrical Component Location
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
(1)
(2)
AT-02051
AT-01470
(4)
(3)
AT-02053
(5)
AT-02054
5AT(diag)-8
AT-02052
asieps_tobira.book 9 ページ
２００５年９月２４日 土曜日 午後４時２７分
Electrical Component Location
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2. SENSOR
(3)
(5),(8)
(1) (2)
(6),(9)
(7)
(4)
AT-02050
(1)
(2)
(3)
Accelerator pedal position sensor
Front vehicle speed sensor
Inhibitor switch
(4)
(5)
(6)
Rear vehicle speed sensor
Turbine speed sensor 1
ATF temperature sensor 1
5AT(diag)-9
(7)
(8)
(9)
Lateral G sensor
Turbine speed sensor 2
ATF temperature sensor 2
asieps_tobira.book 10 ページ
２００５年９月２４日 土曜日 午後４時２７分
Electrical Component Location
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
(2)
(1)
AT-00375
AT-03281
(5)
(4)
(3)
AT-01445
AT-03282
(7)
(6)
AT-01446
AT-01475
(9)
(8)
AT-01759
5AT(diag)-10
AT-01760
asieps_tobira.book 11 ページ
２００５年９月２４日 土曜日 午後４時２７分
Electrical Component Location
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3. SOLENOID
(3)
(2)
(4)
(7)
(8)
(6)
(5)
(1)
(9)
AT-01449
(1)
(2)
(3)
High & low reverse clutch solenoid
Direct clutch solenoid
Front brake solenoid
(4)
(5)
(6)
Input clutch solenoid
Line pressure solenoid
Lock-up solenoid
5AT(diag)-11
(7)
(8)
(9)
Transfer solenoid
Low coast brake solenoid
Memory box
asieps_tobira.book 12 ページ
２００５年９月２４日 土曜日 午後４時２７分
Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5. Transmission Control Module (TCM) I/O Signal
A: ELECTRICAL SPECIFICATION
B55
B54
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7
16
22
1 2 3 4
10 11 12 13
19 20 21
8 9
17 18
23 24
5 6
14 15
7
16
22
8
17
23
9
18
24
AT-01451
NOTE:
The measurement should be performed after warming up.
Item
Connector
No.
P/L solenoid output
B54
PVIGN power
supply
B54
I/C oil pressure
switch input
Power GND
CAN communication line (+)
CAN communication line (–)
Terminal No.
Measuring condition
9
Engine ON, “P” range,
accelerator OFF, brake ON
Manual mode 1st, accelerator OFF, brake ON
8
Ignition switch ON
7
Ignition switch ON
Measured value
Approx. 4.0 —
6.0 V
Approx. 2.0 —
4.0 V
Power supply
voltage
Power supply
voltage
—
3 — 9 Ω (ATF
temperature 20°C
(68°F))
B54
5
B54
4
—
—
—
B54
3
—
—
—
4.0 — 5.0 kΩ
(ATF temperature 20°C (68°F))
0.7 — 0.9 kΩ
(ATF temperature 80°C
(176°F))
ATF temperature sensor 1
input
B54
2
Ignition switch ON
2.5 — 2.9 V (ATF
temperature 20°C
(68°F))
0.8 — 1.0 V (ATF
temperature 80°C
(176°F))
Battery power
supply
B54
1
Always
Power supply
voltage
5AT(diag)-12
Driving frequency 750 —
850 Hz
—
6
Approx. 0 V
Remarks
—
B54
Always
—
Resistance
between terminal
and chassis
ground
—
—
—
The condition of I/
C oil pressure
switch cannot be
read by the tester.
asieps_tobira.book 13 ページ
２００５年９月２４日 土曜日 午後４時２７分
Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Item
I/C solenoid output
Connector
No.
B54
H & LR/C solenoid output
B54
Control valve
power supply
output
B54
LC/B solenoid
output
B54
Power GND
Analog GND
(sensor GND)
LC/B oil pressure switch input
Terminal No.
18
17
16
Measuring condition
While driving at 1st-3rd of
manual mode
While driving at 4th or 5th
of manual mode
While driving at 2nd of
manual mode
While driving at 3rd-5th of
manual mode
Ignition switch ON
B54
14
Ignition switch OFF
While driving at 1st-2nd of
manual mode
While driving at 3rd-5th of
manual mode
Always
B54
13
Always
B54
15
12
Measured value
Approx. 5.5 —
7.5 V
Approx. 0 V
Approx. 5.5 —
7.5 V
Approx. 0 V
Power supply
voltage
Approx. 0 V
Power supply
voltage
—
—
—
3.0 — 3.6 kΩ
(ATF temperature 20°C (68°F))
0.4 — 0.6 kΩ
(ATF temperature 80°C
(176°F))
Ignition switch ON
PVIGN power
supply relay output
B54
10
Ignition switch ON
0 — 1.5 V
24
While driving at other than
4th of manual mode
While driving at 4th of
manual mode
Approx. 4.5 —
6.5 V
D/C solenoid
output
B54
D/C oil pressure
switch input
Subaru Select
Monitor communication line
Control GND
23
22
When lock-up
When not lock-up
While driving at 1st or 5th
of manual mode
While driving at 2nd-4th of
manual mode
—
Approx. 0 V
11
B54
Driving frequency 750 —
850 Hz
—
B54
L/U solenoid
output
3 — 9 Ω (ATF
temperature 20°C
(68°F))
Approx. 0 V
ATF temperature sensor 2
input
B54
Driving frequency 750 —
850 Hz
Approx. 0 V
—
Approx. 0 V
Approx. 3.5 —
5.5 V
Approx. 0 V
Approx. 5.5 —
7.5 V
Approx. 0 V
3 — 9 Ω (ATF
temperature 20°C
(68°F))
Driving frequency 750 —
850 Hz
3 — 9 Ω (ATF
temperature 20°C
(68°F))
Driving frequency 750 —
850 Hz
3 — 9 Ω (ATF
temperature 20°C
(68°F))
Driving frequency 750 —
850 Hz
21
—
—
—
B54
20
—
—
—
B54
19
Approx. 0 V
5AT(diag)-13
The condition of
LC/B oil pressure
switch cannot be
read by the tester.
—
B54
Always
Remarks
3 — 9 Ω (ATF
temperature 20°C
(68°F))
5 — 17 Ω (ATF
temperature 25°C
(77°F))
2.3 — 2.7 V (ATF
temperature 20°C
(68°F))
0.6 — 0.8 V (ATF
temperature 80°C
(176°F))
Fr/B solenoid
output
Resistance
between terminal
and chassis
ground
—
The condition of
D/C oil pressure
switch cannot be
read by the tester.
asieps_tobira.book 14 ページ
２００５年９月２４日 土曜日 午後４時２７分
Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Item
H&LR/C oil pressure switch input
Connector
No.
B55
Front vehicle
speed sensor
input
B55
Inhibitor switch 1
input
B55
Inhibitor switch 2
input
B55
Accessory
power supply
B55
Ignition power
supply
B55
B55
Fr/B oil pressure switch input
B55
Range lock solenoid output
Inhibitor switch 3
input
8
7
4
3
2
Measuring condition
While driving at 2nd of
manual mode
While driving at 3rd-5th of
manual mode
While driving at 2nd and 20
km/h (12 MPH) of manual
mode
While driving at 4th and 80
km/h (50 MPH) of manual
mode
Ignition switch ON, “P”
range
Ignition switch ON, “N”
range
Ignition switch ON, “P”
range
Ignition switch ON, “D”
range
Accessory switch ON
Accessory switch OFF
Rear vehicle
speed sensor
input
Turbine speed
sensor 1 input
Terminal No.
B55
1
18
17
16
Ignition switch ON
Ignition switch OFF
While driving at 2nd and 20
km/h (12 MPH) of manual
mode
While driving at 4th and 80
km/h (50 MPH) of manual
mode
Ignition switch ON, engine
ON, while driving at other
than 4th
Ignition switch ON, engine
ON, while driving at 4th
2nd of manual mode, turbine speed sensor is 2,000
rpm (Read from Subaru
Select Monitor)
4th of manual mode, turbine speed sensor is 2,000
rpm (Read from Subaru
Select Monitor)
Ignition switch ON, while
stopping at “D” range
B55
B55
15
14
Ignition switch ON, vehicle
speed at least 20 km/h (12
MPH)
Ignition switch ON, “R”
range
Ignition switch ON, “D”
range
Measured value
Power supply
voltage
Resistance
between terminal
and chassis
ground
Remarks
—
Approx. 0 V
Use the Subaru
Select Monitor.
Approx. 530 —
610 rpm
—
Approx. 2160 —
2410 rpm
Use the Subaru
Select Monitor.
4.0 — 5.0 V
—
Less than 1.5 V
4.0 — 5.0 V
—
Less than 1.5 V
Power supply
voltage
Approx. 0 V
Power supply
voltage
Approx. 0 V
—
—
Approx. 530 —
610 rpm
Use the Subaru
Select Monitor.
—
Approx. 2160 —
2410 rpm
Use the Subaru
Select Monitor.
Approx. 0 V
—
Power supply
voltage
Use the Subaru
Select Monitor.
Approx. 0 rpm
—
Approx. 1,900 —
2,100 rpm
Approx. Power
Supply Voltage –
1.2 V
Use the Subaru
Select Monitor.
7 — 21 Ω
Approx. 0 V
4.0 — 5.0 V
—
Less than 1.5 V
5AT(diag)-14
asieps_tobira.book 15 ページ
２００５年９月２４日 土曜日 午後４時２７分
Transmission Control Module (TCM) I/O Signal
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Item
Connector
No.
Inhibitor switch 4
input
B55
Control valve
communication
line
B55
Terminal No.
13
12
Back-up light
relay output
B55
11
Ignition power
supply
B55
10
AWD solenoid
output
B55
Turbine speed
sensor 2 input
B55
23
22
Control GND
B55
21
Inhibitor switch 3
open circuit
monitor input
B55
20
PN signal output
B55
19
Measuring condition
Ignition switch ON, “P”
range
Ignition switch ON, “D”
range
Measured value
Ignition switch ON
Ignition switch OFF
Engine ON, “P” range or
“N” range, accelerator OFF
Engine ON, “D” range,
accelerator OFF, brake ON
2nd of manual mode, turbine speed sensor is 2,000
rpm (Read from Subaru
Select Monitor)
4th of manual mode, turbine speed sensor is 2,000
rpm (Read from Subaru
Select Monitor)
Always
Ignition switch ON, “D”
range
Ignition switch ON, “R”
range
Remarks
4.0 — 5.0 V
—
Less than 1.5 V
—
Ignition switch ON, “R”
range
Ignition switch ON, other
than “R” range
Resistance
between terminal
and chassis
ground
—
1.5 V
Power supply
voltage
Power supply
voltage
Approx. 0 V
Approx. 0 V
Approx. 2.0 —
3.0 V
—
90 — 110 Ω (ATF
temperature 25°C
(77°F))
—
3 — 9 Ω (ATF
temperature 20°C
(68°F))
Approx. 1,300 —
1,500 rpm
Driving frequency 750 —
850 Hz
Use the Subaru
Select Monitor.
Approx. 1,900 —
2,100 rpm
—
Approx. 0 V
—
Use the Subaru
Select Monitor.
4.0 — 5.0 V
—
Less than 1.5 V
Ignition switch ON, Other
Power supply
than “P” range or “N” range voltage
—
Ignition switch ON, “P”
range or “N” range
—
0 — 1.0 V
5AT(diag)-15
ECM should be
connected correctly.
asieps_tobira.book 16 ページ
２００５年９月２４日 土曜日 午後４時２７分
Subaru Select Monitor
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
6. Subaru Select Monitor
5) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
A: OPERATION
1. READ DIAGNOSTIC TROUBLE CODE
(DTC)
(A)
1) Prepare the Subaru Select Monitor kit.
AT-00341
(A) Power switch
AT-00338
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge to Subaru Select Monitor.
<Ref. to 5AT(diag)-6, PREPARATION TOOL, General Description.>
6) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
7) On the «System Selection Menu» display
screen, select the {Transmission} and press the
[YES] key.
8) Press the [YES] key after the information of
transmission type is displayed.
9) On the «Transmission Diagnosis» screen, select
{DTC Display}, and then press the [YES] key.
NOTE:
• For details concerning operation procedures, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
• For details concerning the diagnostic trouble
codes (DTC), refer to the List of DTC. <Ref. to
5AT(diag)-29, List of Diagnostic Trouble Code
(DTC).>
AT-00339
4) Connect the Subaru Select Monitor to data link
connector.
(1) Data link connector is located in the lower
portion of instrument panel (on the driver’s
side).
(1)
2. READ CURRENT DATA
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Transmission Control System}
and press the [YES] key.
3) Press the [YES] key after the information of
transmission type is displayed.
4) On the «Transmission Diagnosis» display
screen, select the {Current Data Display & Save}
and press the [YES] key.
5) On the «Transmission Diagnosis» display
screen, select the {Data Display} and press the
[YES] key.
AT-02993
(2) Connect the diagnosis cable to data link
connector.
NOTE:
Do not connect scan tools except for Subaru Select
Monitor.
5AT(diag)-16
asieps_tobira.book 17 ページ
２００５年９月２４日 土曜日 午後４時２７分
Subaru Select Monitor
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
6) Using the scroll key, scroll the display screen up or down until the desired data is shown.
• A list of the support data is shown in the following table.
Item
Engine speed signal
Battery voltage
Accelerator position sensor
Front vehicle speed sensor signal
Gear position
Turbine speed sensor signal
Rear vehicle speed sensor signal
Lateral G sensor
ATF temperature sensor 1 signal
ATF temperature sensor 2 signal
Turbine speed sensor 1 signal
Turbine speed sensor 2 signal
High & low reverse clutch solenoid indicator current
Direct clutch solenoid indicator current
Front brake solenoid indicator current
Input clutch solenoid indicator current
Line pressure solenoid indicator current
Lock-up solenoid indicator current
Transfer solenoid indicator current
High & low reverse clutch solenoid target oil pressure
Direct clutch solenoid target oil pressure
Front brake solenoid target oil pressure
Input clutch solenoid target oil pressure
Line pressure solenoid target oil pressure
Lock-up solenoid target oil pressure
Transfer solenoid target oil pressure
Ignition switch
Tip signal
Cruise control ON signal
Tip down shift signal
Stop light switch signal
Tip up shift signal
Drive range signal
Reverse range signal
Diagnosis light output signal
ATF temperature light signal
Shift lock solenoid signal
Parking range signal
P/N range output signal
Neutral range signal
Inhibitor switch 1 input signal
Inhibitor switch 2 input signal
Inhibitor switch 3 input signal
Inhibitor switch 4 input signal
Inhibitor switch 3 monitor input signal
Backup light relay output signal
High & low reverse clutch oil pressure switch input signal
Direct clutch oil pressure switch input signal
Front brake oil pressure switch input signal
Display
Engine Speed
Battery Voltage
Acceleration Opening Angle
Front Wheel Speed
Gear Position
Turbine Revolution Speed
Rear Wheel Speed
Lateral G Sensor
ATF Temp.
ATF Temp. 2
Turbine Revolution Speed 1
Turbine Revolution Speed 2
H&LR/C Solenoid Current
D/C Solenoid Current
F/B Solenoid Current
I/C Solenoid Current
P/L Solenoid Current
L/U Solenoid Current
AWD Solenoid Current
H&LR/C Solenoid Target Pressure
D/C Solenoid Target Pressure
F/B Solenoid Target Pressure
I/C Solenoid Target Pressure
P/L Solenoid Target Pressure
L/U Solenoid Target Pressure
AWD Solenoid Target Pressure
Ignition Switch
Tiptronic Mode Switch
Cruise Control Signal
Down SW
Stop Light SW
Up SW
D Range Signal
R Range Signal
Diagnosis Light
ATF Temperature Light
Shift Lock Solenoid
P Range Signal
P/N Signal
N Range Signal
Inhibitor SW1
Inhibitor SW2
Inhibitor SW3
Inhibitor SW4
Inhibitor SW3 Monitor
Back-up light relay
H&LR/C Oil Pressure SW
D/C Oil Pressure SW
Fr/B Oil Pressure SW
5AT(diag)-17
Unit of measure
rpm
V
%
km/h
—
rpm
km/h
V
°C
°C
rpm
rpm
A
A
A
A
A
A
A
kPa
kPa
kPa
kPa
kPa
kPa
kPa
ON Input or OFF Input
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
High or Low
High or Low
High or Low
High or Low
High or Low
ON or OFF
ON or OFF
ON or OFF
ON or OFF
asieps_tobira.book 18 ページ
２００５年９月２４日 土曜日 午後４時２７分
Subaru Select Monitor
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Item
Input clutch oil pressure switch input signal
Low coast brake oil pressure switch input signal
Low coast brake solenoid input signal
Display
I/C Oil Pressure SW
LC/B Oil Pressure SW
LC B Solenoid
Unit of measure
ON or OFF
ON or OFF
ON or OFF
NOTE:
For details concerning the operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION
MANUAL”.
3. CLEAR MEMORY MODE
NOTE:
To clear the previous DTC, use {Clear Memory}, and to clear the learned value, use {Clear Memory 2}.
1) Check that the select lever is in “P” range.
2) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
3) On the «System Selection Menu» display screen, select the {Transmission Control System} and press the
[YES] key.
4) Press the [YES] key after the information of transmission type is displayed.
5) On the «Transmission Diagnosis» display screen, select the {Clear Memory} and press the [YES] key.
NOTE:
If {Clear Memory 2} is selected and performed, DTC are not cleared.
6) When ‘Done’ is shown on the display screen, turn off the Subaru Select Monitor and turn the ignition switch
to OFF. To turn the ignition switch to ON again, wait for more than 10 seconds.
NOTE:
For details concerning the operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION
MANUAL”.
5AT(diag)-18
asieps_tobira.book 19 ページ
２００５年９月２４日 土曜日 午後４時２７分
Read Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7. Read Diagnostic Trouble
Code (DTC)
A: OPERATION
Refer to “Subaru Select Monitor” for information
about how to obtain and understand DTC. <Ref. to
5AT(diag)-16, OPERATION, Subaru Select Monitor.>
NOTE:
DTC can not be read by SPORT indicator light.
5AT(diag)-19
asieps_tobira.book 20 ページ
２００５年９月２４日 土曜日 午後４時２７分
Inspection Mode
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
8. Inspection Mode
A: PROCEDURE
WARNING:
Observe the traffic law when driving on public
roads.
1) Shift the select lever to “D” range, and then drive
the vehicle with changing the gear from 1st to 5th.
2) When driving the vehicle at 5th speed of “D”
range, set the gear to manual mode and drive the
vehicle by downshifting using “–” of the select lever
from 5th → 4th, 4th → 3rd, 3rd → 2nd, and 2nd → 1st.
NOTE:
At shifting down, drive the vehicle at least 10 seconds in each speed.
3) Shift the select lever to “R” range and drive the
vehicle for more than 2 seconds.
5AT(diag)-20
asieps_tobira.book 21 ページ
２００５年９月２４日 土曜日 午後４時２７分
Clear Memory Mode
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
9. Clear Memory Mode
A: OPERATION
Use “Subaru Select Monitor” to clear DTC. <Ref. to
5AT(diag)-18, CLEAR MEMORY MODE, OPERATION, Subaru Select Monitor.>
NOTE:
DTC cannot be cleared without using Subaru Select Monitor.
5AT(diag)-21
asieps_tobira.book 22 ページ
２００５年９月２４日 土曜日 午後４時２７分
Learning Control
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
10.Learning Control
B: PROCEDURE
A: GENERAL DESCRIPTION
1) Turn the ignition switch to ON.
2) Turn the A/C switch to OFF.
3) Turn the headlight switch to OFF.
4) Turn the rear defogger switch to OFF.
5) Start the engine.
6) Connect the Subaru Select Monitor to the vehicle.
7) Drive the vehicle for 5 — 10 km (3 — 6 mile) to
warm up ATF temperature more than 70 °C (158
°F).
8) While checking that the throttle opening angle on
Subaru Select Monitor is within the specified range,
shift the gear from 1st → 2nd, 2nd → 3rd, and 3rd
→ 4th, while driving the vehicle at “D” range. <Ref.
to 5AT(diag)-16, READ CURRENT DATA, OPERATION, Subaru Select Monitor.>
Be sure to perform the {Clear Memory 2} only when
the following services have been performed. And
when the shifting shock is occurred during the total
check with vehicle driving, perform the learning
with following procedures. <Ref. to 5AT(diag)-18,
CLEAR MEMORY MODE, OPERATION, Subaru
Select Monitor.>
• Replacement of TCM
• Replacement of transmission assembly
• Simultaneous replacement of TCM and transmission assembly
• Replacement of clutches
• Replacement of control valve body
CAUTION:
When {Clear Memory 2} is executed, DTC may
not be cleared.
Acceleration opening angle:
Turbo model:
10%±2%
Non-turbo model:
12.5%±2%
9) While checking that the throttle opening angle on
Subaru Select Monitor is within the specified range,
upshift the gear from 4th → 5th while driving the vehicle at “D” range.
Acceleration opening angle:
Turbo model:
12.5%±2%
Non-turbo model:
15.5%±2%
10) Repeat the steps 8) and 9) until the reducing effect of the shifting shock is felt.
11) If reducing of shifting shock is not felt after 5 cycles, recheck that the learning conditions (throttle
opening angle, ATF temperature, etc.) are as specified and recheck that other parts are normal.
5AT(diag)-22
asieps_tobira.book 23 ページ
２００５年９月２４日 土曜日 午後４時２７分
SPORT Indicator Light Display
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
11.SPORT Indicator Light Display
A: OPERATION
When any on-board diagnostics item is malfunctioning, the SPORT indicator light blinks from the time the
malfunction is detected after starting the engine until the ignition switch is turned OFF. The malfunctioning
part or unit can be determined by a DTC during the on-board diagnostics operation. Problems which occurred previously can also be identified through the memory function. If the SPORT indicator light does not
show a problem (although a problem is occurring), the problem can be determined by checking the performance characteristics of each sensor using Subaru Select Monitor. Indicator light signal patterns are as
shown in the figure.
When the SPORT indicator light does not operate normally but no DTC is stored, perform the SPORT indicator light inspection. <Ref. to 5AT(diag)-24, INSPECTION, SPORT Indicator Light Display.>
(A)
(1)
(2)
(B)
(1)
(3)
(2)
(4)
(C)
(1)
(3)
(2)
(5)
AT-01750
(A)
Ignition switch (Engine OFF)
(B)
Normal (Engine ON)
(C)
Faulty (Engine ON)
(1)
(2)
ON
OFF
(3)
(4)
2 seconds
0.25 seconds
(5)
Blink
5AT(diag)-23
asieps_tobira.book 24 ページ
２００５年９月２４日 土曜日 午後４時２７分
SPORT Indicator Light Display
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
B: INSPECTION
DIAGNOSIS:
SPORT indicator light circuit is open or shorted.
TROUBLE SYMPTOM:
When the ignition switch is turned to ON (engine OFF), SPORT indicator light does not illuminate.
WIRING DIAGRAM:
IGNITION SWITCH
MAIN SBF
i10
SBF-6
No.5
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15 16 17 18 19 20 21 22
BATTERY
i128
4
3
1 2 3 4 5 6 7 8 9 10 11 12
A:
SPORT
E
COMBINATION
METER
21
22
1
7
i10
B54
8
A27
2
A26
i128
BODY INTEGRATED UNIT
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
B30
i84
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
3
B20
4
B54
A:
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
B: B280
JOINT
CONNECTOR
B: B280
i84
TCM
AT-03172
5AT(diag)-24
asieps_tobira.book 25 ページ
２００５年９月２４日 土曜日 午後４時２７分
SPORT Indicator Light Display
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
Step
CHECK SPORT INDICATOR LIGHT.
Turn the ignition switch to ON.
Check
Does the SPORT indicator
light illuminate?
Yes
Go to step 2.
CHECK SPORT INDICATOR LIGHT.
After the ignition switch is ON, wait for at least
2 seconds.
CHECK SPORT INDICATOR LIGHT.
Start the engine.
Does the SPORT indicator
light illuminate?
Go to step 3.
4
CHECK SUBARU SELECT MONITOR COMMUNICATION.
Connect the Subaru Select Monitor to the data
link connector.
5
CHECK TCM.
Display the current data of TCM using Subaru
Select Monitor.
6
CHECK BODY INTEGRATED UNIT.
Display the current data of body integrated unit
using Subaru Select Monitor. <Ref. to
LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
7
CHECK TCM.
1) Start the engine.
2) Display the current data of TCM using Subaru Select Monitor. <Ref. to 5AT(diag)-16,
OPERATION, Subaru Select Monitor.>
CHECK BODY INTEGRATED UNIT.
Display the current data of body integrated unit
using Subaru Select Monitor. <Ref. to
LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
8
Does the SPORT indicator
light go off?
No
Perform the selfdiagnosis of combination meter.
Go to step 4.
Normal. Go back Go to step 7.
to “Basic Diagnostic Procedure”.
<Ref. to 5AT(diag)2, Basic Diagnostic Procedure.>
Is the communication between Go to step 5.
Check the power
Subaru Select Monitor and
supply ground cirTCM normal?
cuit of TCM and
Subaru Select
Monitor communication. <Ref. to
5AT(diag)-26,
Diagnostic Procedure for Subaru
Select Monitor
Communication.>
Is the “Diagnosis Light” output Go to step 6.
Replace the TCM.
signal “ON”?
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Does the “SPORT Light” input Replace the com- Check DTC of
signal “Illuminate”?
bination meter
body integrated
assembly. <Ref. to unit. <Ref. to
IDI-14, Combina- LAN(diag)-12,
tion Meter.>
OPERATION,
Subaru Select
Monitor.>
Is the “Diagnosis Light” output Replace the TCM. Go to step 8.
signal “ON”?
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Does the “SPORT Light” input Check DTC of
Perform the selfsignal “Illuminate”?
body integrated
diagnosis of comunit. Perform the bination meter.
diagnosis accord- <Ref. to IDI-3,
ing to DTC. <Ref. INSPECTION,
to LAN(diag)-12, Combination
OPERATION,
Meter System.>
Subaru Select
Monitor.>
5AT(diag)-25
asieps_tobira.book 26 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure for Subaru Select Monitor Communication
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
12.Diagnostic Procedure for Subaru Select Monitor Communication
A: COMMUNICATION FOR INITIALIZING IMPOSSIBLE
DIAGNOSIS:
Defective harness connector
TROUBLE SYMPTOM:
Subaru Select Monitor communication failure
WIRING DIAGRAM:
BATTERY
MAIN SBF
No.13
1
2
3
SBF-6
M/B No. 12
E
IGNITION
SWITCH
PVIGN
RELAY
10
ACCESSORY
SWITCH
12
B357
DATA LINK
CONNECTOR
B40
No.31
F/B No.12
1
4
13
16
B21
B:
B21
A5
B55
E
E
E
TRANSMISSION
B21
B40
A:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
1 2 3 4 5 6 7 8
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
9 10 11 12 13 14 15 16
A20
B2
TCM
A14
B54
A19
A:
B1
B10
A10
A7
A8
A1
E2
B54
7
16
22
8
17
23
9
18
24
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7
16
22
8 9
17 18
23 24
AT-03173
5AT(diag)-26
asieps_tobira.book 27 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure for Subaru Select Monitor Communication
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
8
9
Step
Check
Yes
CHECK SUBARU SELECT MONITOR POW- Is the voltage more than 10 V? Go to step 2.
ER SUPPLY CIRCUIT.
Measure the voltage between data link connector and chassis ground.
Connector & terminal
(B40) No. 1 (+) — Chassis ground (–):
CHECK SUBARU SELECT MONITOR
GROUND CIRCUIT.
Measure the resistance of harness between
data link connector and chassis ground.
Connector & terminal
(B40) No. 12 — Chassis ground:
(B40) No. 13 — Chassis ground:
CHECK COMMUNICATION OF SUBARU SELECT MONITOR.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to the transmission
system can be executed normally.
CHECK COMMUNICATION OF SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Disconnect the TCM connector.
3) Turn the ignition switch to ON.
4) Check whether communication to engine
system can be executed normally.
CHECK COMMUNICATION OF SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Connect the TCM connector.
3) Disconnect the connector from ECM.
4) Turn the ignition switch to ON.
5) Check whether communication to transmission system can be executed normally.
CHECK HARNESS CONNECTOR BETWEEN
EACH CONTROL MODULE AND DATA LINK
CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the TCM and ECM connector.
3) Measure the resistance between TCM connector and chassis ground.
Connector & terminal
(B40) No. 10 — Chassis ground:
CHECK OUTPUT SIGNAL OF TCM.
1) Turn the ignition switch to ON.
2) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B40) No. 10 (+) — Chassis ground (–):
CHECK HARNESS CONNECTOR BETWEEN
TCM AND DATA LINK CONNECTOR.
Measure the resistance between TCM connector and data link connector.
Connector & terminal
(B54) No. 20 — (B40) No. 10:
CHECK INSTALLATION OF TCM CONNECTOR.
Turn the ignition switch to OFF.
Is the resistance less than 1 Ω? Go to step 3.
Are the name and year of sys- Go to step 8.
tem displayed on Subaru
Select Monitor?
No
Repair harness
connector
between the battery and data link
connector, and
poor contact of the
connector.
Repair the open
circuit of harness
between data link
connector and
ground terminal,
and poor contact
of connector.
Go to step 4.
Are the name and year of sys- Go to step 6.
tem displayed on Subaru
Select Monitor?
Go to step 5.
Are the name and year of sys- Inspect the ECM.
tem displayed on Subaru
Select Monitor?
Go to step 6.
Is the resistance more than 1
MΩ?
Check harness
and connector
between each control module and
data link connector.
Go to step 7.
Is the voltage more than 1 V?
Check harness
Go to step 8.
and connector
between each control module and
data link connector.
Is the resistance less than 1 Ω? Go to step 9.
Repair the harness and connector between TCM
and data link connector.
Is TCM connector connected
to TCM?
5AT(diag)-27
Go to step 10.
Connect the TCM
connector to TCM.
asieps_tobira.book 28 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure for Subaru Select Monitor Communication
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
10
Step
Check
CHECK INSTALLATION OF TRANSMISSION Is the transmission harness
HARNESS CONNECTOR.
connector connected to bulkhead harness connector?
11
CHECK POOR CONTACT OF CONNECTORS.
12
CHECK POWER SUPPLY OF TCM.
1) Disconnect the connector from TCM.
2) Turn the ignition switch to ON.
3) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B54) No. 1 (+) — Chassis ground (–):
CHECK FUSE (NO. 12).
Is the fuse (No. 12) blown out?
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 12).
CHECK HARNESS.
Is the resistance less than 10
Measure the resistance between TCM connec- Ω?
tor and chassis ground.
Connector & terminal
(B54) No. 1 — Chassis ground:
13
14
15
16
17
18
Yes
Go to step 11.
Is there poor contact in control Repair the poor
module power supply and data contact.
link connector?
Is the voltage 10 — 13 V?
Go to step 15.
CHECK IGNITION POWER SUPPLY CIRCUIT.
1) Turn the ignition switch to ON (engine
OFF).
2) Measure the ignition power supply voltage
between TCM connector and chassis ground.
Connector & terminal
(B55) No. 1 (+) — Chassis ground (–):
(B55) No. 10 (+) — Chassis ground (–):
CHECK FUSE (NO. 12).
Remove the fuse (No. 12).
Is the voltage 10 — 13 V?
Replace the fuse
(No. 12).
No
Connect the bulkhead harness connector to
transmission harness connector.
Go to step 12.
Go to step 13.
Go to step 14.
Replace the fuse Go to step 15.
(No. 12). If the new
fuse (No. 12) has
blown out easily,
repair the short circuit of harness
between fuse (No.
12) and TCM.
Go to step 17.
Go to step 16.
Is the fuse (No. 12) blown out? Replace the fuse Go to step 17.
(No. 12). If the
replaced fuse (No.
12) blows out easily, repair the short
circuit of harness
between fuse (No.
12) and TCM.
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1 Repair the short
Go to step 18.
TCM AND TRANSMISSION.
MΩ?
circuit of harness
1) Turn the ignition switch to OFF.
between TCM and
2) Disconnect the connector from TCM.
transmission har3) Measure the resistance of the harness
ness connector,
between TCM and transmission ground.
and poor contact
Connector & terminal
of connector.
(B54) No. 19 — Transmission ground:
(B55) No. 21 — Transmission ground:
(B54) No. 5 — Transmission ground:
(B54) No. 14 — Transmission ground:
CHECK POOR CONTACT OF CONNECIs there poor contact in TCM
Repair the conReplace the TCM.
TORS.
power supply, ground and data nector.
<Ref. to 5AT-55,
link connector?
Transmission Control Module
(TCM).>
5AT(diag)-28
asieps_tobira.book 29 ページ
２００５年９月２４日 土曜日 午後４時２７分
List of Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
13.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC
P0705
Item
Transmission Range
Sensor Circuit
(PRNDL Input)
P0712
Transmission Fluid
Temperature Sensor
Circuit Low Input
P0713
Transmission Fluid
Temperature Sensor
Circuit High Input
P0715
Input/Turbine Speed
Sensor Circuit
P0719
Torque Converter/
Brake Switch “B” Circuit Low
P0720
Output Speed Sensor
Circuit
P0724
Torque Converter/
Brake Switch “B” Circuit High
P0725
Engine Speed Input
Circuit
P0731
Gear 1 Incorrect Ratio
P0732
Gear 2 Incorrect Ratio
P0733
Gear 3 Incorrect Ratio
P0734
Gear 4 Incorrect Ratio
P0735
Gear 5 Incorrect Ratio
P0736
Reverse Incorrect
Ratio
P0741
Torque Converter
Clutch Circuit Performance or Stuck Off
P0743
Torque Converter
Clutch Circuit Electrical
Content of diagnosis
Reference target
<Ref. to 5AT(diag)-32, DTC P0705 TRANSMISSION
Inhibitor switch malfunction,
RANGE SENSOR CIRCUIT (PRNDL INPUT), Diagnosopen or short circuit
tic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-36, DTC P0712 TRANSMISSION
ATF temperature sensor 1 malFLUID TEMPERATURE SENSOR CIRCUIT LOW
function, or open input signal cirINPUT, Diagnostic Procedure with Diagnostic Trouble
cuit
Code (DTC).>
<Ref. to 5AT(diag)-39, DTC P0713 TRANSMISSION
ATF temperature sensor 1 malFLUID TEMPERATURE SENSOR CIRCUIT HIGH
function, short input signal circuit INPUT, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
<Ref. to 5AT(diag)-42, DTC P0715 INPUT/TURBINE
Turbine speed sensor 1 malfuncSPEED SENSOR CIRCUIT, Diagnostic Procedure with
tion, short input signal circuit
Diagnostic Trouble Code (DTC).>
Brake switch malfunction, open
<Ref. to 5AT(diag)-45, DTC P0719 TORQUE CONinput signal circuit, body inteVERTER/BRAKE SWITCH “B” CIRCUIT LOW, Diagnosgrated unit malfunction, CAN
tic Procedure with Diagnostic Trouble Code (DTC).>
communication failure
Front wheel speed sensor is
<Ref. to 5AT(diag)-47, DTC P0720 OUTPUT SPEED
faulty or input signal circuit,
SENSOR CIRCUIT, Diagnostic Procedure with Diagnosground, power supply is open or
tic Trouble Code (DTC).>
shorted.
Brake switch malfunction, short
<Ref. to 5AT(diag)-50, DTC P0724 TORQUE CONcircuit of input signal, body inteVERTER/BRAKE SWITCH “B” CIRCUIT HIGH, Diaggrated unit, CAN communication
nostic Procedure with Diagnostic Trouble Code (DTC).>
failure
Open or short engine speed out- <Ref. to 5AT(diag)-52, DTC P0725 ENGINE SPEED
put signal circuit, ECM malfunc- INPUT CIRCUIT, Diagnostic Procedure with Diagnostic
tion, CAN communication failure Trouble Code (DTC).>
Vehicle sensor, turbine speed
<Ref. to 5AT(diag)-52, DTC P0731 GEAR 1 INCORsensor, control valve malfuncRECT RATIO, Diagnostic Procedure with Diagnostic
tion or shift clutch malfunction
Trouble Code (DTC).>
Vehicle sensor, turbine speed
<Ref. to 5AT(diag)-52, DTC P0732 GEAR 2 INCORsensor, control valve malfuncRECT RATIO, Diagnostic Procedure with Diagnostic
tion or shift clutch malfunction
Trouble Code (DTC).>
<Ref. to 5AT(diag)-52, DTC P0733 GEAR 3 INCORVehicle sensor, turbine speed
RECT RATIO, Diagnostic Procedure with Diagnostic
sensor or shift clutch malfunction
Trouble Code (DTC).>
<Ref. to 5AT(diag)-52, DTC P0734 GEAR 4 INCORVehicle sensor, turbine speed
RECT RATIO, Diagnostic Procedure with Diagnostic
sensor or shift clutch malfunction
Trouble Code (DTC).>
<Ref. to 5AT(diag)-52, DTC P0735 GEAR 5 INCORVehicle sensor, turbine speed
RECT RATIO, Diagnostic Procedure with Diagnostic
sensor or shift clutch malfunction
Trouble Code (DTC).>
<Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORVehicle sensor, turbine speed
RECT RATIO, Diagnostic Procedure with Diagnostic
sensor or shift clutch malfunction
Trouble Code (DTC).>
<Ref. to 5AT(diag)-54, DTC P0741 TORQUE CONLock-up clutch is faulty or valve
VERTER CLUTCH CIRCUIT PERFORMANCE OR
is stuck.
STUCK OFF, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-56, DTC P0743 TORQUE CONL/U solenoid circuit malfunction
VERTER CLUTCH CIRCUIT ELECTRICAL, Diagnostic
or L/U solenoid body malfunction
Procedure with Diagnostic Trouble Code (DTC).>
5AT(diag)-29
asieps_tobira.book 30 ページ
２００５年９月２４日 土曜日 午後４時２７分
List of Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
DTC
P0748
Item
Content of diagnosis
Line pressure solenoid circuit
Pressure Control Solemalfunction or line pressure
noid “A” Electrical
solenoid body malfunction
P0751
Shift Solenoid “A” Performance or Stuck Off
Fr/B Solenoid Function Malfunction
P0753
Shift Solenoid “A”
Electrical
Fr/B solenoid circuit malfunction
or Fr/B solenoid body malfunction
P0756
Shift Solenoid “B” Performance or Stuck Off
Shift Solenoid “B” Performance
malfunction
P0758
Shift Solenoid “B”
Electrical
I/C solenoid circuit malfunction
or I/C solenoid body malfunction
P0761
Shift Solenoid “C” Performance or Stuck Off
H&LR/C solenoid malfunction
P0763
Shift Solenoid “C”
Electrical
H&LR/C solenoid circuit malfunction or H&LR/C solenoid
body malfunction
P0766
Shift Solenoid “D” Performance or Stuck Off
D/C solenoid malfunction
P0768
Shift Solenoid “D”
Electrical
D/C solenoid circuit malfunction
or D/C solenoid body malfunction
P0771
Shift Solenoid “E” Performance or Stuck Off
LC/B solenoid malfunction
P0773
Shift Solenoid “E”
Electrical
P0801
Reverse Inhibit Control
Circuit
P0817
Starter Disable Circuit
P0882
TCM Power Input Signal Low
P0957
Backup Light Relay
Circuit Low
P0958
Backup Light Relay
Circuit High
P1601
TCM Data Communication Failure
• LC/B solenoid circuit malfunction or LC/B solenoid body malfunction
• OFF malfunction of PVIGN
relay circuit or relay body
• Shift lock solenoid is faulty or
output signal circuit is open or
shorted.
• Blown out of TCM+B fuse
• PN signal output circuit is
open or shorted.
• ECM Source Voltage Is Abnormal
• Blown out of TCM+B fuse
PVIGN relay output circuit is
open, shorted or relay malfunction
Back-up relay output circuit is
open, shorted or relay OFF malfunction
Back-up relay output circuit is
open, shorted or relay ON malfunction
Communication Failure between
TCM and Memory Box
Reference target
<Ref. to 5AT(diag)-58, DTC P0748 PRESSURE CONTROL SOLENOID “A” ELECTRICAL, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-60, DTC P0751 SHIFT SOLENOID
“A” PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-63, DTC P0753 SHIFT SOLENOID
“A” ELECTRICAL, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-65, DTC P0756 SHIFT SOLENOID
“B” PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-68, DTC P0758 SHIFT SOLENOID
“B” ELECTRICAL, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-70, DTC P0761 SHIFT SOLENOID
“C” PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-73, DTC P0763 SHIFT SOLENOID
“C” ELECTRICAL, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-75, DTC P0766 SHIFT SOLENOID
“D” PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-78, DTC P0768 SHIFT SOLENOID
“D” ELECTRICAL, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-80, DTC P0771 SHIFT SOLENOID
“E” PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-83, DTC P0773 SHIFT SOLENOID
“E” ELECTRICAL, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-86, DTC P0801 REVERSE INHIBIT
CONTROL CIRCUIT, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-89, DTC P0817 STARTER DISABLE
CIRCUIT, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
<Ref. to 5AT(diag)-91, DTC P0882 TCM POWER INPUT
SIGNAL LOW, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
<Ref. to 5AT(diag)-93, DTC P0957 BACKUP LIGHT
RELAY CIRCUIT LOW, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-95, DTC P0958 BACKUP LIGHT
RELAY CIRCUIT HIGH, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-97, DTC P1601 TCM DATA COMMUNICATION FAILURE, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
5AT(diag)-30
asieps_tobira.book 31 ページ
２００５年９月２４日 土曜日 午後４時２７分
List of Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
DTC
P1706
P1707
P1710
P1716
P1717
P1718
P1760
P1761
P1762
P1798
P1799
P1817
P1840
P1842
P1843
P1844
Item
Content of diagnosis
Reference target
<Ref. to 5AT(diag)-99, DTC P1706 AT VEHICLE SPEED
AT Vehicle Speed Sen- Rear wheel speed sensor is
SENSOR CIRCUIT MALFUNCTION (REAR WHEEL),
sor Circuit Malfunction faulty or input circuit, ground,
Diagnostic Procedure with Diagnostic Trouble Code
(Rear Wheel)
power supply is open or shorted.
(DTC).>
AT AWD Solenoid
AWD solenoid circuit malfunction <Ref. to 5AT(diag)-101, DTC P1707 AT AWD SOLEValve Circuit Malfunc- or AWD solenoid body malfunc- NOID VALVE CIRCUIT MALFUNCTION, Diagnostic Protion
tion
cedure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-103, DTC P1710 TORQUE CONTorque Converter Tur- Torque converter sensor 2 malVERTER TURBINE 2 SPEED SIGNAL CIRCUIT 2 MALbine 2 Speed Signal
function, input circuit, ground,
FUNCTION, Diagnostic Procedure with Diagnostic
Circuit 2 Malfunction
power open, short circuit
Trouble Code (DTC).>
ATF temperature sensor 2 mal<Ref. to 5AT(diag)-106, DTC P1716 ATF TEMP. SENATF Temp. Sensor 2
function, or open input signal cir- SOR 2 CIRCUIT LOW, Diagnostic Procedure with DiagCircuit Low
cuit
nostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-109, DTC P1717 ATF TEMP. SENATF Temp. Sensor 2
ATF temperature sensor 2 malSOR 2 CIRCUIT HIGH, Diagnostic Procedure with DiagCircuit High
function, short input signal circuit
nostic Trouble Code (DTC).>
CAN communication line bus off
<Ref. to 5AT(diag)-111, DTC P1718 AT CAN COMMUNIAT Can Communicais open, EUM short circuit, ABS/
CATION CIRCUIT, Diagnostic Procedure with Diagnostic
tion Circuit
VDCCM, integrated CU malfuncTrouble Code (DTC).>
tion
Lateral Acceleration
<Ref. to 5AT(diag)-112, DTC P1760 LATERAL ACCELSensor Performance
Faulty lateral G sensor
ERATION SENSOR PERFORMANCE PROBLEM, DiagProblem
nostic Procedure with Diagnostic Trouble Code (DTC).>
Lateral G sensor is faulty, input
<Ref. to 5AT(diag)-115, DTC P1761 LATERAL ACCELLateral Acceleration
signal circuit is open or CAN
ERATION SENSOR CIRCUIT LOW, Diagnostic ProceSensor Circuit Low
communication failure.
dure with Diagnostic Trouble Code (DTC).>
<Ref. to 5AT(diag)-118, DTC P1762 LATERAL ACCELLateral Acceleration
Lateral G sensor is faulty or input
ERATION SENSOR CIRCUIT HIGH, Diagnostic ProceSensor Circuit High
signal circuit is shorted.
dure with Diagnostic Trouble Code (DTC).>
Malfunction of clutch oil pressure <Ref. to 5AT(diag)-120, DTC P1798 GEAR 1 ENGINE
Gear 1 Engine Brake
related to 1st engine brake, sole- BRAKE, Diagnostic Procedure with Diagnostic Trouble
noid current malfunction
Code (DTC).>
Malfunction of clutch oil pressure
<Ref. to 5AT(diag)-121, DTC P1799 INTERLOCK, DiagInterlock
which emit interlock, solenoid
nostic Procedure with Diagnostic Trouble Code (DTC).>
current malfunction
<Ref. to 5AT(diag)-122, DTC P1817 SPORT MODE
SPORT Mode Switch
Manual mode switch is open or
SWITCH CIRCUIT (MANUAL SWITCH), Diagnostic ProCircuit (Manual
shorted, or switch malfunction
cedure with Diagnostic Trouble Code (DTC).>
Switch)
<Ref. to 5AT(diag)-124, DTC P1840 TRANSMISSION
Transmission Fluid
Fr/B oil pressure switch is open
FLUID PRESSURE SENSOR/SWITCH A CIRCUIT,
Pressure Sensor/
or shorted, or switch malfunction Diagnostic Procedure with Diagnostic Trouble Code
Switch A Circuit
(DTC).>
<Ref. to 5AT(diag)-124, DTC P1842 TRANSMISSION
Transmission Fluid
I/C oil pressure switch is open or FLUID PRESSURE SENSOR/SWITCH C CIRCUIT,
Pressure Sensor/
shorted, or switch malfunction.
Diagnostic Procedure with Diagnostic Trouble Code
Switch C Circuit
(DTC).>
<Ref. to 5AT(diag)-124, DTC P1843 TRANSMISSION
Transmission Fluid
D/C oil pressure switch is open
FLUID PRESSURE SENSOR/SWITCH D CIRCUIT,
Pressure Sensor/
or shorted, or switch malfuncDiagnostic Procedure with Diagnostic Trouble Code
Switch D Circuit
tion.
(DTC).>
<Ref. to 5AT(diag)-124, DTC P1844 TRANSMISSION
Transmission Fluid
H&LR/C oil pressure switch is
FLUID PRESSURE SENSOR/SWITCH E CIRCUIT,
Pressure Sensor/
open or shorted, or switch malDiagnostic Procedure with Diagnostic Trouble Code
Switch E Circuit
function.
(DTC).>
5AT(diag)-31
asieps_tobira.book 32 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
14.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT)
DTC DETECTING CONDITION:
The inhibitor switch is open or short.
TROUBLE SYMPTOM:
• Shift characteristics are erroneous.
• Shift indicator light does not match with select lever.
• Shift indicator light does not illuminate.
• N-D, N-R shock occur.
5AT(diag)-32
asieps_tobira.book 33 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
WIRING DIAGRAM:
MAIN SBF
SBF-6
No.5
BATTERY
4
3
i10
6 7 8 9 10
1 2 3 4 5
11 12 13 14 15 16 17 18 19 20 21 22
COMBINATION
METER
P
R
N
D
i10
i77
E
21
22
1
7
1 2 3 4 5 6 7 8 9 10 11 12
A:
JOINT
CONNECTOR
2
8
A27
A26
i77
BODY INTEGRATED UNIT
A:
B54
B30
i84
B: B280
A3
A4
B20
A:
B:
B55
i84
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
B:
B280
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
A:
B54
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7
16
22
8 9
17 18
23 24
7
16
22
8 9
17 18
23 24
TCM
B20
1 2 3 4
5 6 7 8
8
B13
1
B3
B14
2
3
B12
4
B4
B12
T3
TRANSMISSION
E
AT-03174
5AT(diag)-33
asieps_tobira.book 34 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
CHECK DTC OF TCM.
CHECK INHIBITOR SWITCH.
1) Shift the select lever to “P” range.
2) Check input signal of inhibitor SW 1 — 4
and inhibitor SW 3 monitor using Subaru
Select Monitor.
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance between TCM connector and chassis ground about the item
which indicated Low on step 3.
Connector & terminal
(B55) No. 4 — Chassis ground:
(B55) No. 3 — Chassis ground:
(B55) No. 14 — Chassis ground:
(B55) No. 13 — Chassis ground:
(B55) No. 20 — Chassis ground:
CHECK INHIBITOR SWITCH.
1) Shift the select lever to “D” range.
2) Check input signal of inhibitor SW 1 — 4
and inhibitor SW 3 monitor using Subaru
Select Monitor.
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector
about the item which indicated High on step 5.
Connector & terminal
(B55) No. 4 — (B12) No. 4:
(B55) No. 3 — (B12) No. 3:
(B55) No. 14 — (B12) No. 2:
(B55) No. 13 — (B12) No. 1:
(B55) No. 20 — (B12) No. 8:
CHECK INPUT SIGNAL FOR TCM USING
CIRCUIT TESTER.
1) Turn the ignition switch to OFF.
2) Disconnect the transmission connector
(B12).
3) Connect the TCM connector.
4) Turn the ignition switch to ON.
5) Measure the voltage between TCM terminals.
Connector & terminal
(B55) No. 4 — (B54) No. 19:
(B55) No. 3 — (B54) No. 19:
(B55) No. 14 — (B54) No. 19:
(B55) No. 13 — (B54) No. 19:
(B55) No. 20 — (B54) No. 19:
Check
Yes
No
Is DTC of AT CAN communica- Perform the diag- Go to step 2.
tion circuit displayed?
nosis according to
DTC.
Is all displayed “High”?
Go to step 4.
Go to step 3.
Is the resistance more than 1
MΩ?
Go to step 6.
Repair the short
circuit of harness
between TCM connector and chassis
ground.
Is all displayed Low?
Go to step 6.
Go to step 5.
Is the resistance less than 1 Ω? Go to step 6.
Repair the open
circuit of harness
between TCM connector and transmission connector.
Is the voltage 4 — 6 V for the Go to step 8.
inhibitor SW 1 — 4? Is the voltage 3.5 — 5.5 V for the inhibitor SW 3 monitor?
Go to step 7.
5AT(diag)-34
asieps_tobira.book 35 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7
8
9
10
Step
Check
CHECK TCM I/O SIGNAL.
Is TCM I/O signal OK?
Check I/O signal of power supply, ground and
PVIGN power supply relay.
<Ref. to 5AT(diag)-12, ELECTRICAL SPECIFICATION, Transmission Control Module (TCM)
I/O Signal.>
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T3) No. 4 — (T5) No. 6:
(T3) No. 3 — (T5) No. 5:
(T3) No. 2 — (T5) No. 4:
(T3) No. 1 — (T5) No. 3:
(T3) No. 8 — (T5) No. 2:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T5) No. 6 — Transmission ground:
(T5) No. 5 — Transmission ground:
(T5) No. 4 — Transmission ground:
(T5) No. 3 — Transmission ground:
(T5) No. 2 — Transmission ground:
CHECK POOR CONTACT.
Yes
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the resistance less than 1 Ω? Go to step 9.
Is the resistance more than 1
MΩ?
Go to step 10.
Is there any poor contact in
Repair the poor
inhibitor SW 1 — 4 or inhibitor contact.
SW 3 monitor circuit?
5AT(diag)-35
No
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
for PVIGN power
supply relay.
Repair the open
circuit of harness
between control
valve body connector and transmission connector.
Repair the short
circuit of harness
between control
valve body connector and transmission connector.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
asieps_tobira.book 36 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
B: DTC P0712 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT LOW
INPUT
DTC DETECTING CONDITION:
Input signal circuit to ATF temperature sensor 1 is open.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
B54
TCM
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
2
13
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
5
12
5
T4
T15
16
1
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T15
TRANSMISSION
AT-03444
5AT(diag)-36
asieps_tobira.book 37 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 13 — (B11) No. 12:
(B54) No. 2 — (B11) No. 5:
CHECK ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the connectors to transmission
and TCM.
3) Turn the ignition switch to ON and start
engine.
4) Warm-up the transmission until the ATF
temperature reaches to 80°C (176°F).
NOTE:
If the ambient temperature is below 0°C (32°F),
drive the vehicle until the ATF reaches its operating temperature.
5) Disconnect the connector from transmission.
6) Measure the resistance between transmission connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission
connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connector.
2) Turn the ignition switch to ON. (engine
OFF)
3) Read the ATF temperature using Subaru
Select Monitor.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance between 500 Go to step 3.
— 1,200 Ω?
Go to step 5.
Does the resistance value
Go to step 4.
increase while the ATF temperature decreases?
Go to step 5.
Does the ATF temperature
gradually decrease?
5AT(diag)-37
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness between
ATF temperature
sensor and transmission connector.
asieps_tobira.book 38 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 12 — (T5) No. 1:
(T4) No. 5 — (T5) No. 16:
CHECK POOR CONTACT.
Is there poor contact in ATF
temperature sensor 1 circuit?
5AT(diag)-38
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Repair the poor
contact.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
asieps_tobira.book 39 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
C: DTC P0713 TRANSMISSION FLUID TEMPERATURE SENSOR CIRCUIT HIGH
INPUT
DTC DETECTING CONDITION:
Input signal circuit to ATF temperature sensor 1 is shorted.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
B54
TCM
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
2
13
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
5
12
5
T4
T15
16
1
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T15
TRANSMISSION
AT-03444
5AT(diag)-39
asieps_tobira.book 40 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and chassis ground.
Connector & terminal
(B54) No. 13 — Chassis ground:
(B54) No. 2 — Chassis ground:
CHECK ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the connectors to transmission
and TCM.
3) Turn the ignition switch to ON and start
engine.
4) Warm-up the transmission until the ATF
temperature reaches to 80°C (176°F).
NOTE:
If the ambient temperature is below 0°C (32°F),
drive the vehicle until the ATF reaches its operating temperature.
5) Disconnect the connector from transmission.
6) Measure the resistance between transmission connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission
connector terminals.
Connector & terminal
(T4) No. 5 — (T4) No.12:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connector.
2) Turn the ignition switch to ON. (engine
OFF)
3) Read the ATF temperature using Subaru
Select Monitor.
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 2.
No
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the resistance between 500 Go to step 3.
— 1,200 Ω?
Go to step 5.
Does the resistance value
Go to step 4.
increase while the ATF temperature decreases?
Go to step 5.
Does the ATF temperature
gradually decrease?
5AT(diag)-40
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness between
ATF temperature
sensor and transmission connector.
asieps_tobira.book 41 ページ
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between chassis
ground and control valve body connector.
Connector & terminal
(T15) No. 1 — Chassis ground:
(T15) No. 16 — Chassis ground:
CHECK POOR CONTACT.
Is there poor contact in ATF
temperature sensor 1 circuit?
5AT(diag)-41
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Repair the short
circuit of harness
between transmission connector
and control valve
body connector.
Repair the poor
contact.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
asieps_tobira.book 42 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
D: DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT
DTC DETECTING CONDITION:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
• Excessive shift shock
• Does not shift to 5th
WIRING DIAGRAM:
B54
A:
TCM
B:
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
B55
7
16
22
8 9
17 18
23 24
B16
B54
A16
A:
B:
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8
17
23
9
18
24
T4
7
B12
7
B11
B55
B11
T3
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
B12
3
2
1
1 2 3 4
5 6 7 8
AT1
E
TURBINE SPEED SENSOR 1
AT1
1 2 3
AT-02074
5AT(diag)-42
asieps_tobira.book 43 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
Check
CHECK TCM I/O SIGNAL.
Is TCM I/O signal OK?
Check I/O signal of power supply, ground and
PVIGN power supply relay.
<Ref. to 5AT(diag)-12, ELECTRICAL SPECIFICATION, Transmission Control Module (TCM)
I/O Signal.>
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
1) Disconnect the connectors from TCM and
transmission.
2) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 16 — (B11) No. 7:
(B55) No. 16 — (B12) No. 7:
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 16 — Chassis ground:
(B55) No. 16 — Chassis ground:
CHECK TCM POWER SUPPLY OUTPUT.
1) Connect the connector to TCM. (Transmission connector is disconnected)
2) Turn the ignition switch to ON. (engine
OFF)
3) Measure the voltage between transmission
connector and chassis ground.
Connector & terminal
(B11) No. 7 (+) — Chassis ground (–):
CHECK HARNESS ASSEMBLY (TURBINE
SPEED SENSOR GROUND).
Check the installing condition of ground connecting harness of harness assembly (used for
both of turbine speed sensor 1, rear vehicle
speed sensor).
Yes
Go to step 2.
Is the resistance less than 1 Ω? Go to step 3.
No
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
P0882 for PVIGN
power supply
relay.
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance less than 1
MΩ?
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the voltage 10 — 13 V?
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the ground connecting har- Go to step 6.
ness installed securely to the
transmission body? Is there
any serious damage in the harness and terminal?
When poor installation of ground
occurs, install it
securely. Replace
the transmission
assembly if the
harness or terminal is damaged.
<Ref. to 5AT-33,
Automatic Transmission Assembly.>
Repair the open
circuit of harness
between TCM and
transmission connector, or poor
contact of connector.
CHECK HARNESS ASSEMBLY.
Is the resistance less than 1 Ω? Go to step 7.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Disconnect the connector from turbine
speed sensor 1.
4) Measure the resistance between transmission connector and turbine speed sensor 1
connector.
Connector & terminal
(T4) No. 7 — (AT1) No. 3:
(T3) No. 7 — (AT1) No. 2:
(AT1) No. 1 — Chassis ground:
5AT(diag)-43
asieps_tobira.book 44 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7
8
Step
CHECK HARNESS ASSEMBLY.
Measure the resistance between transmission
connector and chassis ground.
Connector & terminal
(T4) No. 7 — Chassis ground:
(T3) No. 7 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
3) Start the engine, and set the vehicle in 4th
speed driving condition of manual mode.
NOTE:
Turbine speed sensor 1 signal can be measured only on 4th speed.
4) Read the current data of turbine speed sensor 1 using the Subaru Select Monitor. <Ref. to
5AT(diag)-16, READ CURRENT DATA, OPERATION, Subaru Select Monitor.>
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the VDC
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-26, Clear
Memory Mode.>
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 8.
No
Repair the short
circuit of harness
between TCM and
transmission connector.
Does the value of the turbine
speed sensor 1 change
depending on the acceleration,
deceleration and shifting range
of the vehicle?
Even if the SPORT
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness between
ATF temperature
sensor and transmission connector.
Replace the turbine speed sensor
1. <Ref. to 5AT-51,
Turbine Speed
Sensor 1.>
5AT(diag)-44
asieps_tobira.book 45 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
E: DTC P0719 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT LOW
DTC DETECTING CONDITION:
Brake switch malfunction, open input signal circuit
TROUBLE SYMPTOM:
Brake down control is not operated at SPORT mode.
WIRING DIAGRAM:
MAIN SBF
SBF-2
1
3
No.8
BATTERY
B65
2
4
1
B159
E
1 2
3 4
5 6 7 8 9
STOP LIGHT
SWITCH
2
B65
B54
B23
1 2 3 4
10 11 12 13
19 20 21
8 9
17 18
23 24
BODY INTEGRATED
UNIT
A30
A: B280
A20
5 6 7
14 15 16
22
B: B281
A: B280
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
B: B281
B54
3
4
1 2 3
4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
TCM
AT-03287
5AT(diag)-45
asieps_tobira.book 46 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
Check
Is any of following DTC displayed? / AT CAN Communication Circuit / Output Speed
Sensor Circuit / AT Vehicle
Speed Sensor Circuit Malfunction (Rear Wheel)
Is ON displayed?
1
CHECK DTC.
2
CHECK BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Depress the brake pedal.
6) Read the data of brake pedal switch using
Subaru Select Monitor. <Ref. to LAN(diag)-12,
OPERATION, Subaru Select Monitor.>
CHECK TCM.
Is ON displayed?
Read the data of brake pedal switch using
Subaru Select Monitor. <Ref. to 5AT(diag)-16,
OPERATION, Subaru Select Monitor.>
3
4
5
6
7
CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Disconnect the connector from body integrated unit.
2) Depress the brake pedal.
3) Measure the voltage between body integrated unit connector and chassis ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from stop light
switch.
3) Measure the resistance of harness
between body integrated unit and stop light
switch.
Connector & terminal
(B281) No. 23 — (B64) No. 2:
CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
Measure the resistance of harness between
body integrated unit connector and stop light
switch.
Connector & terminal
(B281) No. 23 — Chassis ground:
CHECK POOR CONTACT.
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Go to step 4.
A temporary poor
contact of connector or harness may
be the cause.
Check the poor
contact.
Is the voltage more than 10 V? Go to step 7.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the resistance less than 1 Ω? Go to step 6.
Repair the open
circuit of harness
between body integrated unit and
stop light switch.
Is the resistance more than 1
MΩ?
Go to step 7.
Repair the short
circuit of harness
between body integrated unit and
stop light switch.
Is there poor contact in input
signal of brake switch?
Repair the poor
contact.
Check the body
integrated unit.
5AT(diag)-46
Go to step 5.
asieps_tobira.book 47 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
F: DTC P0720 OUTPUT SPEED SENSOR CIRCUIT
DTC DETECTING CONDITION:
• AT vehicle speed signal is abnormal.
• The harness connector between TCM and vehicle speed sensor is shorted or open.
TROUBLE SYMPTOM:
• Deterioration of shifting quality.
• Driving performance is poor.
WIRING DIAGRAM:
A:
B54
B:
B55
B54
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
B11
1 2
3
6 7
9 10
11
13
14 15
17 18
19
7
16
22
8 9
17 18
23 24
4
8
12
16
20
14
15
8 9
17 18
23 24
B11
5
T15
3
2
1
T15
7
16
22
B7
1
7
A16
TCM
A:
T7
CONTROL
VALVE
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
FRONT VEHICLE
SPEED SENSOR
T7
TRANSMISSION
3 2 1
AT-03445
5AT(diag)-47
asieps_tobira.book 48 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
Step
Check
CHECK TCM I/O SIGNAL.
Is TCM I/O signal OK?
Check I/O signal of power supply, ground and
PVIGN power supply relay.
<Ref. to 5AT(diag)-12, ELECTRICAL SPECIFICATION, Transmission Control Module (TCM)
I/O Signal.>
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
1) Disconnect the connectors from TCM and
transmission.
2) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 16 — (B11) No. 7:
(B55) No. 7 — (B11) No. 1:
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 7 — Chassis ground:
(B54) No. 16 — Chassis ground:
CHECK TCM POWER SUPPLY OUTPUT.
1) Connect the connector to TCM. (Transmission connector is disconnected)
2) Turn the ignition switch to ON. (engine
OFF)
3) Measure the voltage between transmission
connector and chassis ground.
Connector & terminal
(B11) No. 7 (+) — Chassis ground (–):
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
3) Start the engine, and drive it.
4) Read the current data of front wheel speed
using Subaru Select Monitor. <Ref. to
5AT(diag)-16, READ CURRENT DATA, OPERATION, Subaru Select Monitor.>
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the ABS
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-20, CLEAR
MEMORY MODE, OPERATION, Subaru Select Monitor.>
Yes
Go to step 2.
Is the resistance less than 1 Ω? Go to step 3.
No
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
P0882 for PVIGN
power supply
relay.
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance less than 1
MΩ?
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the voltage 10 — 13 V?
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Does the value of the front
wheel speed change depending on the acceleration and
deceleration of the vehicle?
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness between
ATF temperature
sensor and transmission connector.
5AT(diag)-48
asieps_tobira.book 49 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
6
7
8
9
Step
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(B11) No. 7 — (T5) No. 15:
(B11) No. 1 — (T5) No. 14:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T15) No. 15 — Transmission ground:
(T15) No. 14 — Transmission ground:
CHECK HARNESS CONNECTOR BETWEEN
CONTROL VALVE BODY AND VEHICLE
SPEED SENSOR.
1) Disconnect the connector from vehicle
speed sensor.
2) Measure the resistance of harness
between control valve body connector and
vehicle speed sensor connector.
Connector & terminal
(T15) No. 15 — (T7) No. 3:
(T15) No. 14 — (T7) No. 2:
(T7) No. 1 — Transmission ground:
CHECK HARNESS CONNECTOR BETWEEN
CONTROL VALVE BODY AND VEHICLE
SPEED SENSOR.
Measure the resistance of harness between
control valve body connector and transmission
ground.
Connector & terminal
(T15) No. 15 — Transmission ground:
(T15) No. 14 — Transmission ground:
Check
Yes
Is the resistance less than 1 Ω? Go to step 7.
No
Repair the open
circuit of harness
between control
valve body connector and transmission connector.
Is the resistance more than 1
MΩ?
Repair the short
circuit of harness
between transmission connector
and transmission
ground.
Go to step 8.
Is the resistance less than 1 Ω? Go to step 9.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Is the resistance more than 1
MΩ?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
5AT(diag)-49
Replace the vehicle speed sensor.
asieps_tobira.book 50 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
G: DTC P0724 TORQUE CONVERTER/BRAKE SWITCH “B” CIRCUIT HIGH
DTC DETECTING CONDITION:
Brake switch malfunction, open input signal circuit
TROUBLE SYMPTOM:
Gear is not shifted down when climbing a hill.
WIRING DIAGRAM:
MAIN SBF
SBF-2
1
3
No.8
BATTERY
B65
2
4
1
B159
E
1 2
3 4
5 6 7 8 9
STOP LIGHT
SWITCH
2
B65
B54
B23
1 2 3 4
10 11 12 13
19 20 21
8 9
17 18
23 24
BODY INTEGRATED
UNIT
A30
A: B280
A20
5 6 7
14 15 16
22
B: B281
A: B280
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
B: B281
B54
3
4
1 2 3
4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
TCM
AT-03287
5AT(diag)-50
asieps_tobira.book 51 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
Check
Is any of following DTC
detected? / AT CAN Communication Circuit / Output Speed
Sensor Circuit / AT Vehicle
Speed Sensor Circuit Malfunction (Rear Wheel)
Is OFF displayed?
1
CHECK DTC.
2
CHECK BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Read the data of brake pedal switch using
Subaru Select Monitor. <Ref. to LAN(diag)-12,
OPERATION, Subaru Select Monitor.>
CHECK TCM.
Is OFF displayed?
Read the data of brake pedal switch using
Subaru Select Monitor. <Ref. to 5AT(diag)-16,
OPERATION, Subaru Select Monitor.>
3
4
5
6
7
CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Disconnect the connector from body integrated unit.
2) Measure the voltage between body integrated unit connector and chassis ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
CHECK STOP LIGHT SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from stop light
switch.
3) Measure the resistance of harness
between stop light switch connectors.
Terminals
No. 1 — No. 2:
CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STOP LIGHT
SWITCH.
1) Turn the ignition switch to ON.
2) Measure the voltage of harness between
body integrated unit connector and chassis
ground.
Connector & terminal
(B281) No. 23 (+) — Chassis ground (–):
CHECK POOR CONTACT.
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Go to step 4.
A temporary poor
contact of connector or harness may
be the cause.
Check the poor
contact.
Is the voltage more than 10 V? Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the resistance more than 1
MΩ?
Go to step 6.
Replace the stop
light switch.
Is the voltage less than 1 V?
Go to step 7.
Repair the short
circuit of harness
between TCM and
stop light switch.
Is there poor contact in input
signal of brake switch?
Repair the poor
contact.
Check the body
integrated unit.
5AT(diag)-51
Go to step 7.
asieps_tobira.book 52 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
H: DTC P0725 ENGINE SPEED INPUT CIRCUIT
DTC DETECTING CONDITION:
Information of engine speed is not correctly received from ECM.
TROUBLE SYMPTOM:
No lock-up occurs. (After engine is warmed-up)
1
Step
CHECK DTC OF ECM.
2
CHECK DTC OF TCM.
3
CHECK DTC OF TCM.
I:
Check
Yes
Is DTC of AT CAN communica- Perform the diagtion circuit detected?
nosis according to
DTC.
Is DTC of AT CAN communica- Perform the diagtion circuit detected?
nosis according to
DTC.
Is any of following DTC
Perform the diagdetected? /Output Speed Sen- nosis according to
sor Circuit/AT Vehicle Speed
DTC.
Sensor Circuit Malfunction
(Rear Wheel)
No
Go to step 2.
Go to step 3.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
DTC P0731 GEAR 1 INCORRECT RATIO
NOTE:
Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT
RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
J: DTC P0732 GEAR 2 INCORRECT RATIO
NOTE:
Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT
RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
K: DTC P0733 GEAR 3 INCORRECT RATIO
NOTE:
Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT
RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
L: DTC P0734 GEAR 4 INCORRECT RATIO
NOTE:
Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT
RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
M: DTC P0735 GEAR 5 INCORRECT RATIO
NOTE:
Refer to DTC P0736 for diagnostic procedure. <Ref. to 5AT(diag)-53, DTC P0736 REVERSE INCORRECT
RATIO, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
5AT(diag)-52
asieps_tobira.book 53 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
N: DTC P0736 REVERSE INCORRECT RATIO
DTC DETECTING CONDITION:
Target gear ratio and actual gear ratio do not match.
TROUBLE SYMPTOM:
• Shift point is too high or too low.
• Excessive shift shock.
• Gear is not changed.
• The vehicle does not move in D or R range with the engine running at high speed.
1
2
3
4
5
6
Step
CHECK DTC OF TCM.
Check
Is any DTC of the followings
detected? P0715, P0720,
P0753, P0758, P0763, P0768,
P0773, P0751, P0756, P0761,
P0766, P0771, P1706, P1710,
P1798, P1799
Does the displayed value of the
Subaru Select Monitor change
according to engine speed and
shifting?
CHECK TURBINE SPEED SENSOR USING
SUBARU SELECT MONITOR.
1) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
2) Start the engine, and drive it.
3) Read the current data of torque converter
turbine speed using Subaru Select Monitor.
<Ref. to 5AT(diag)-16, READ CURRENT
DATA, OPERATION, Subaru Select Monitor.>
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the VDC
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-20, CLEAR
MEMORY MODE, OPERATION, Subaru Select Monitor.>
CHECK FRONT AND REAR VEHICLE
Do the values displayed for
SPEED SENSORS.
each of the Subaru Select
Monitor and the speedometer
substantially match?
CHECK INHIBITOR SWITCH.
Do the values displayed for the
Subaru Select Monitor and the
meter indicator match?
DRIVING CHECK.
Is DTC displayed again?
1) Turn the ignition switch to OFF.
2) After restarting the engine, check that the
SPORT indicator light is not blinking, and perform a drive check based on the Inspection
Mode. <Ref. to 5AT(diag)-20, PROCEDURE,
Inspection Mode.>
CHECK AFTER REPAIR.
Is the trouble symptom inrepairable (malfunction in shifting
such as excessive shift shock,
engine speed increases excessively when shifting)?
5AT(diag)-53
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Perform the diagnosis according to
DTC P0715,
P1710.
Go to step 4.
Perform the diagnosis according to
DTC P0720,
P1706.
Perform the diagnosis according to
DTC P0705.
Go to step 6.
Go to step 5.
Check the DTC.
Then, when proceeded again to
step 5, go to step
6.
Replace the trans- Temporary poor
mission assembly. contact occurs.
Check that the
harness connector is not faulty.
asieps_tobira.book 54 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
O: DTC P0741 TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE OR
STUCK OFF
DTC DETECTING CONDITION:
• Defective lock-up clutch or torque converter assembly
• Defective control valve
• Defective turbine speed sensor 1 or 2
TROUBLE SYMPTOM:
No lock-up occurs. (After engine is warmed-up)
1
2
Step
CHECK DTC OF TCM.
DRIVING CHECK FOR LOCK-UP CONDITION.
1) Perform a drive check based on the Inspection Mode with the following conditions. <Ref.
to 5AT(diag)-20, PROCEDURE, Inspection
Mode.>
(1) Read the current data of throttle opening angle using Subaru Select Monitor.
<Ref. to 5AT(diag)-16, READ CURRENT
DATA, OPERATION, Subaru Select Monitor.>
(2) Keep the same vehicle speed at 60 km/
h with 10% or less throttle opening angle
which is read currently on Subaru Select
Monitor. <Ref. to 5AT(diag)-16, READ
CURRENT DATA, OPERATION, Subaru
Select Monitor.>
(3) Read the current data of L/U solenoid
target pressure using Subaru Select Monitor. <Ref. to 5AT(diag)-16, READ CURRENT DATA, OPERATION, Subaru Select
Monitor.>
(4) Check the engine speed and turbine
speed when the L/U solenoid target value
displayed on Subaru Select Monitor is 500
kPa or more.
Check
Is any DTC of the followings
detected? P0715, P0725,
P0753, P0758, P0763, P0768,
P0773, P0751, P0756, P0761,
P0766, P0771, P1710, P1718,
P1798, P1799
Are the engine speed and turbine speed almost the same?
5AT(diag)-54
Yes
No
Perform the diag- Go to step 2.
nosis according to
each DTC.
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
Go to step 3.
asieps_tobira.book 55 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3
Step
Check
DRIVING CHECK FOR LOCK-UP CONDIIs DTC P0741 displayed with
TION.
the SPORT indicator light
1) Clear the memory. <Ref. to 5AT(diag)-18, blinking?
OPERATION, Subaru Select Monitor.>
2) Perform a drive check based on the Inspection Mode with the following conditions. <Ref.
to 5AT(diag)-20, PROCEDURE, Inspection
Mode.>
(1) Read the current data of throttle opening angle using Subaru Select Monitor.
<Ref. to 5AT(diag)-16, READ CURRENT
DATA, OPERATION, Subaru Select Monitor.>
(2) Keep the same vehicle speed at 60 km/
h with 10% or less throttle opening angle
which is read currently on Subaru Select
Monitor. <Ref. to 5AT(diag)-16, READ
CURRENT DATA, OPERATION, Subaru
Select Monitor.>
(3) Read the current data of L/U solenoid
target pressure using Subaru Select Monitor. <Ref. to 5AT(diag)-16, READ CURRENT DATA, OPERATION, Subaru Select
Monitor.>
(4) Drive the vehicle continuously for one
minutes or more with the L/U solenoid target value displayed on Subaru Select Monitor at 500 kPa or more.
3) Turn the ignition switch to OFF.
4) Turn the ignition switch to ON. (Engine ON)
5) Perform the step 2) again.
5AT(diag)-55
Yes
Replace the transmission assembly
when DTC P0741
is displayed.
When DTC other
than P0741 is displayed, perform
the diagnosis corresponding to the
DTC.
No
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 56 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
P: DTC P0743 TORQUE CONVERTER CLUTCH CIRCUIT ELECTRICAL
DTC DETECTING CONDITION:
The output signal circuit of lock up solenoid is open or shorted.
TROUBLE SYMPTOM:
No lock-up occurs. (After engine is warmed-up)
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
5
14
23
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
20
E
B11
T4
T16
6
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03446
5AT(diag)-56
asieps_tobira.book 57 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 23 — (B11) No. 20:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 23 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
NOTE:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 20 — (T16) No. 6:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between chassis
ground and control valve body connector.
Connector & terminal
(T16) No. 6 — Chassis ground:
CHECK LOCK-UP SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 6 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between control
valve body connector and transmission ground.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Go to step 7.
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
5AT(diag)-57
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 58 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Q: DTC P0748 PRESSURE CONTROL SOLENOID “A” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of line pressure solenoid is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
9
5
14
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
19
B11
T4
T16
7
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03447
5AT(diag)-58
asieps_tobira.book 59 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 9 — (B11) No. 19:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance between TCM connector and chassis ground.
Connector & terminal
(B54) No. 9 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 19 — (T16) No. 7:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 7 — Chassis ground:
CHECK LINE PRESSURE SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 7 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between control
valve body connector and transmission ground.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Go to step 7.
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
5AT(diag)-59
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 60 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
R: DTC P0751 SHIFT SOLENOID “A” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal of front brake solenoid does not match with oil pressure.
TROUBLE SYMPTOM:
Locked to 4th or 5th gear.
WIRING DIAGRAM:
A:
1 2 3 4
10 11 12 13
19 20 21
TCM
B:
B55
5
14
A24
B54
B17
A:
B54
5 6 7
14 15 16
22
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
E
8
17
23
9
18
24
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
5
17
3
7
16
22
8 9
17 18
23 24
T4
T15
9
T15
11
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
T16
1 2
3 4
5 6 7 8 9 10 11 12
TRANSMISSION
AT-03448
5AT(diag)-60
asieps_tobira.book 61 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 24 — (B11) No. 17:
(B55) No. 17 — (B11) No. 3:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 17 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Turn the ignition switch to ON. (Engine
OFF)
3) Check input signal of Fr/B oil pressure SW.
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Shift to 1st speed while checking the current gear position using Subaru Select Monitor.
4) Check input signal of Fr/B oil pressure SW.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is OFF displayed?
Go to step 4.
Go to step 6.
Is ON displayed?
Even if the SPORT Go to step 5.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
5AT(diag)-61
asieps_tobira.book 62 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(B11) No. 17 — (T16) No. 9:
(B11) No. 3 — (T15) No. 11:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission ground and control valve body connector.
Connector & terminal
(T4) No. 3 — Transmission ground:
5AT(diag)-62
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Replace the transmission harness
assembly.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Replace the transmission harness
assembly.
asieps_tobira.book 63 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
S: DTC P0753 SHIFT SOLENOID “A” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of front brake solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th or 5th gear.
WIRING DIAGRAM:
A:
1 2 3 4
10 11 12 13
19 20 21
TCM
B54
B:
B55
5
14
A24
A:
B54
5 6 7
14 15 16
22
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
E
7
16
22
8 9
17 18
23 24
8
17
23
9
18
24
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
17
5
T4
T16
9
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03449
5AT(diag)-63
asieps_tobira.book 64 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 24 — (B11) No. 17:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 24 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 17 — (T16) No. 9:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 9 — Transmission ground:
CHECK FRONT BRAKE SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 9 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between control
valve body and
transmission connector.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Go to step 7.
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
5AT(diag)-64
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 65 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
T: DTC P0756 SHIFT SOLENOID “B” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal value of input clutch solenoid and oil pressure does not match.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
5
14
18
6
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
18
11
B11
T4
T15
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
8
T15
8
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03450
5AT(diag)-65
asieps_tobira.book 66 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 18 — (B11) No. 18:
(B54) No. 6 — (B11) No. 11:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 6 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Turn the ignition switch to ON. (Engine
OFF)
3) Check input signal of I/C oil pressure SW.
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Drive the vehicle on 4th speed of “D” range
with checking current gear position using Subaru Select Monitor.
4) Check input signal of I/C oil pressure SW.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is OFF displayed?
Go to step 4.
Go to step 6.
Is ON displayed?
Even if the SPORT Go to step 5.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
5AT(diag)-66
asieps_tobira.book 67 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 18 — (T16) No. 8:
(T4) No. 11 — (T15) No. 8:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Check the insulation of transmission harness assembly.
Connector & terminal
(T4) No. 11 — (T15) No. 13:
5AT(diag)-67
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Replace the transmission harness
assembly.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Replace the transmission harness
assembly.
asieps_tobira.book 68 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
U: DTC P0758 SHIFT SOLENOID “B” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of input clutch solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
18
5
14
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
18
B11
T4
T16
8
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03451
1
Step
Check
Yes
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 2.
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 18 — (B11) No. 18:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
5AT(diag)-68
No
Repair the open
circuit of harness
between TCM and
transmission connector.
asieps_tobira.book 69 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND BODY HARNESS.
Measure the resistance of harness between
TCM connector and body harness.
Connector & terminal
(B54) No. 18 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 18 — (T16) No. 8:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between chassis
ground and control valve body connector.
Connector & terminal
(T16) No. 8 — Chassis ground:
CHECK INPUT CLUTCH SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 8 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 3.
No
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Repair the short
circuit of harness
between transmission connector
and control valve
body connector.
Go to step 5.
Is the resistance between 3 — Go to step 6.
9 Ω?
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
5AT(diag)-69
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Go to step 7.
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 70 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
V: DTC P0761 SHIFT SOLENOID “C” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal value of high & low reverse clutch solenoid and oil pressure does not match.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
A:
1 2 3 4
10 11 12 13
19 20 21
TCM
B:
B55
A5
A14
A17
B54
B8
A:
B54
5 6 7
14 15 16
22
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
15
4
E
7
16
22
8 9
17 18
23 24
8
17
23
9
18
24
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
5
T4
T15
12
T15
12
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
T16
1 2
3 4
5 6 7 8 9 10 11 12
TRANSMISSION
AT-03452
5AT(diag)-70
asieps_tobira.book 71 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 17 — (B11) No. 15:
(B55) No. 8 — (B11) No. 4:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 8 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Turn the ignition switch to ON. (engine
OFF)
3) Check the input signal of the H&LR/C oil
pressure SW.
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Shift to “D” range and brake ON (1st) with
checking current gear position using Subaru
Select Monitor.
4) Check the input signal of the H&LR/C oil
pressure SW.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is OFF displayed?
Go to step 4.
Go to step 6.
Is ON displayed?
Even if the SPORT Go to step 5.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
5AT(diag)-71
asieps_tobira.book 72 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 15 — (T16) No. 12:
(T4) No. 4 — (T15) No. 12:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Check the insulation of transmission harness assembly.
Connector & terminal
(T4) No. 4 — (T15) No. 13:
5AT(diag)-72
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Replace the transmission harness
assembly.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Replace the transmission harness
assembly.
asieps_tobira.book 73 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
W: DTC P0763 SHIFT SOLENOID “C” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of high & low reverse clutch solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
A:
1 2 3 4
10 11 12 13
19 20 21
TCM
B54
B:
B55
A5
A14
A17
A:
B54
5 6 7
14 15 16
22
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
E
7
16
22
8 9
17 18
23 24
8
17
23
9
18
24
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
15
5
T4
T16
12
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03453
1
Step
Check
Yes
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 2.
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 17 — (B11) No. 15:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
5AT(diag)-73
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
asieps_tobira.book 74 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 17 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 15 — (T16) No. 12:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance of harness connector
between control valve body connector and
chassis ground.
Connector & terminal
(T16) No. 12 — Chassis ground:
CHECK HIGH & LOW REVERSE CLUTCH
SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 12 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 3.
No
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the open
circuit of harness
between control
valve body connector and transmission ground.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Go to step 7.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
5AT(diag)-74
asieps_tobira.book 75 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
X: DTC P0766 SHIFT SOLENOID “D” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal value of direct clutch solenoid and oil pressure does not match.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
5
14
22
21
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
16
10
B11
T4
T16
1 2
3 4
5 6 7 8 9 10 11 12
T15
10
T15
9
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
TRANSMISSION
AT-03454
5AT(diag)-75
asieps_tobira.book 76 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 22 — (B11) No. 16:
(B54) No. 21 — (B11) No. 10:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND BODY HARNESS.
Measure the resistance of harness between
TCM connector and body harness.
Connector & terminal
(B54) No. 21 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Turn the ignition switch to ON. (engine
OFF)
3) Check input signal of D/C oil pressure SW.
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Shift to 2nd speed of manual mode and
brake ON with checking current gear position
using Subaru Select Monitor.
4) Check input signal of D/C oil pressure SW.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is OFF displayed?
Go to step 4.
Go to step 6.
Is ON displayed?
Even if the SPORT Go to step 5.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
5AT(diag)-76
asieps_tobira.book 77 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 16 — (T16) No. 10:
(T4) No. 10 — (T15) No. 9:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Check the insulation of transmission harness assembly.
Connector & terminal
(T4) No. 10 — (T15) No. 13:
5AT(diag)-77
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Replace the transmission harness
assembly.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Replace the transmission harness
assembly.
asieps_tobira.book 78 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Y: DTC P0768 SHIFT SOLENOID “D” ELECTRICAL
DTC DETECTING CONDITION:
The output signal circuit of direct clutch solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
22
5
14
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
16
B11
T4
T16
10
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03455
1
Step
Check
Yes
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 2.
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 22 — (B11) No. 16:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
5AT(diag)-78
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
asieps_tobira.book 79 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 22 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 16 — (T16) No. 10:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between chassis
ground and control valve body connector.
Connector & terminal
(T16) No. 10 — Chassis ground:
CHECK DIRECT CLUTCH SOLENOID.
Measure the resistance of harness connector
between control valve body connector and
transmission ground.
Connector & terminal
(T16) No. 10 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 3.
No
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between control
valve body connector and transmission ground.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Go to step 7.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
5AT(diag)-79
asieps_tobira.book 80 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Z: DTC P0771 SHIFT SOLENOID “E” PERFORMANCE OR STUCK OFF
DTC DETECTING CONDITION:
Output signal value of low coast brake solenoid and oil pressure does not match.
TROUBLE SYMPTOM:
• Locked to 2nd gear.
• Engine brake does not function at 1st or 2nd of manual mode.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
5
14
15
12
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
13
9
B11
T4
T16
1 2
3 4
5 6 7 8 9 10 11 12
T15
1
T15
10
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
TRANSMISSION
AT-03456
5AT(diag)-80
asieps_tobira.book 81 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 15 — (B11) No. 13:
(B54) No. 12 — (B11) No. 9:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance between TCM connector and chassis ground.
Connector & terminal
(B54) No. 12 — Chassis ground:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Turn the ignition switch to ON. (engine
OFF)
3) Check input signal of LC/B oil pressure SW.
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (Engine ON)
3) Drive the vehicle on 2nd speed of manual
mode 15 km/h (9 MPH) with checking current
gear position using Subaru Select Monitor.
4) Check input signal of LC/B oil pressure SW.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is OFF displayed?
Go to step 4.
Go to step 6.
Is ON displayed?
Even if the SPORT Go to step 5.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness in the
solenoid output
and oil pressure
SW input.
5AT(diag)-81
asieps_tobira.book 82 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 13 — (T16) No. 1:
(T4) No. 9 — (T15) No. 10:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Check the insulation of transmission harness assembly.
Connector & terminal
(T4) No. 9 — (T15) No. 13:
5AT(diag)-82
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Replace the transmission harness
assembly.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Repair the short
circuit of harness
between transmission connector
and control valve
body connector.
asieps_tobira.book 83 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AA:DTC P0773 SHIFT SOLENOID “E” ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of low coast brake solenoid is open or shorted.
TROUBLE SYMPTOM:
• Locked to 2nd gear.
• Engine brake does not function at 1st or 2nd of manual mode.
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
15
5
14
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
E
13
B11
T4
T16
1
1 2
3 4
5 6 7 8 9 10 11 12
T16
TRANSMISSION
AT-03457
5AT(diag)-83
asieps_tobira.book 84 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
CHECK DTC OF TCM.
Check
Is DTC (P0802) of the PVIGN
relay detected?
Yes
No
Perform the diag- <Ref. to 5AT(diag)nosis according to 83, Diagnostic
DTC.
Procedure with
Diagnostic Trouble Code (DTC).>
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 3.
Repair the open
TCM AND TRANSMISSION.
circuit of harness
1) Turn the ignition switch to OFF.
between TCM con2) Disconnect the connectors from TCM and
nector and transtransmission.
mission connector.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 15 — (B11) No. 13:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1 Go to step 4.
Repair the short
TCM AND BODY HARNESS.
MΩ?
circuit of harness
Measure the resistance of harness between
between TCM conTCM connector and body harness.
nector and transConnector & terminal
mission connector.
(B54) No. 15 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 5.
Repair the open
TRANSMISSION AND CONTROL VALVE
circuit of harness
BODY.
between transmis1) Turn the ignition switch to OFF.
sion connector
2) Disconnect the connector from transmisand control valve
sion.
body connector.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 13 — (T16) No. 1:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1 Go to step 6.
Repair the short
TRANSMISSION AND CONTROL VALVE
MΩ?
circuit of harness
BODY.
between control
Measure the resistance between chassis
valve body conground and control valve body connector.
nector and transConnector & terminal
mission ground.
(T16) No. 1 — Chassis ground:
Is the resistance between 5 — Go to step 7.
Replace the conCHECK LOW COAST BRAKE SOLENOID.
trol valve body.
Measure the resistance of harness connector 17 Ω?
<Ref. to 5AT-52,
between control valve body connector and
Control Valve
transmission ground.
Body.>
Connector & terminal
(T16) No. 1 — Transmission ground:
5AT(diag)-84
asieps_tobira.book 85 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7
8
Step
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Yes
Repair the poor
contact.
No
Go to step 8.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the P0882
diagnosis. <Ref. to
5AT(diag)-91, DTC
P0882 TCM
POWER INPUT
SIGNAL LOW,
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
5AT(diag)-85
asieps_tobira.book 86 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AB:DTC P0801 REVERSE INHIBIT CONTROL CIRCUIT
DTC DETECTING CONDITION:
Shift lock solenoid malfunction, open or short reverse inhibitor control circuit
TROUBLE SYMPTOM:
• Gear is shifted from “N” range to “R” range during driving at 20 km/h (12MPH) or more.
• Gear can not be shifted from “N” range to “R” range though the vehicle is parked.
WIRING DIAGRAM:
B55
1 2 3 4
10 11 12 13
19 20 21
TCM
7
16
22
8
17
23
9
18
24
15
B55
5 6
14 15
B116
1 2
3 4
5 6 7 8 9 10
BODY INTEGRATED UNIT
SHIFT LOCK
SOLENOID
B116
3
4
E
AT-01536
5AT(diag)-86
asieps_tobira.book 87 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
CHECK FUSE (NO. 32).
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 32).
CHECK OUTPUT SIGNAL OF TCM.
1) Turn the ignition switch to ON.
2) With the brake pedal depressed, shift the
select lever to “D” range.
3) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 15 (+) — Chassis ground (–):
CHECK HARNESS CONNECTOR BETWEEN
TCM AND SHIFT LOCK SOLENOID.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM and
shift lock solenoid.
3) Measure the resistance of harness
between TCM and shift lock solenoid connector.
Connector & terminal
(B55) No. 15 — (B116) No. 3:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND SHIFT LOCK SOLENOID.
Measure the resistance of the harness
between TCM and chassis ground.
Connector & terminal
(B55) No. 15 — Chassis ground:
CHECK HARNESS BETWEEN SHIFT LOCK
SOLENOID AND CHASSIS GROUND TERMINAL.
Measure the resistance of harness between
shift lock solenoid and chassis ground.
Connector & terminal
(B116) No. 4 — Chassis ground:
CHECK SHIFT LOCK SOLENOID.
Measure the resistance of shift lock solenoid
terminals.
Connector & terminal
(B116) No. 3 — No. 4:
Check
Yes
No
Is the fuse (No. 32) blown out? Replace the fuse Go to step 2.
(No. 32). If the
replaced fuse has
blown out easily,
repair short circuit
of harness
between fuse (No.
32) and TCM.
Is the voltage more than 10.5 Go to step 3.
Replace the TCM.
V?
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between TCM and
shift lock solenoid
connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between TCM and
shift lock solenoid
connector.
Is the resistance less than 1 Ω? Go to step 6.
Repair the open
circuit of harness
between chassis
ground and shift
lock solenoid connector.
Is the resistance between 7 — Go to step 7.
21 Ω?
Replace the shift
lock solenoid.
5AT(diag)-87
asieps_tobira.book 88 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
7
8
Step
Check
CHECK OUTPUT SIGNAL OF TCM.
Is the voltage less than 1 V?
1) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
2) Start the engine.
3) Shift the select lever to “D” range and
slowly increase vehicle speed to 20 km/h (12
MPH).
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the VDC
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-20, CLEAR
MEMORY MODE, OPERATION, Subaru Select Monitor.>
4) Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 15 (+) — Chassis ground (–):
CHECK POOR CONTACT.
Is there poor contact in the
reverse inhibitor control circuit?
5AT(diag)-88
Yes
No
Even if the SPORT Go to step 8.
indicator light up,
the circuit has
returned to normal condition at
this time. A temporary poor contact
of connector or
harness may be
the cause. Repair
the harness or
connector in the
reverse inhibitor
control circuit.
Repair the poor
contact.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
asieps_tobira.book 89 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AC:DTC P0817 STARTER DISABLE CIRCUIT
DTC DETECTING CONDITION:
Open or short in P/N signal output circuit
TROUBLE SYMPTOM:
• Engine can be started on other than “P” or “N” range
• Engine can not be started on “P” or “N” range.
WIRING DIAGRAM:
B55
ECM
A: B136
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
TB NA
B9 A31
B: B137
A:
B136
1 2 3 4
7 8 9 10 11 12 13
17 18 19 20 21 22 23 24
28 29 30
31 32
5 6
14 15 16
25 26 27
33 34 35
B: B137
19
1 2 3 4 5 6 7
8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23
24 25
26 27
28 29
30 31
B55
TCM
AT-03489
5AT(diag)-89
asieps_tobira.book 90 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
8
Step
CHECK DTC OF TCM.
Check
Is DTC of Transmission Range
Sensor Circuit (PRNDL Input)
detected?
Is the communication between
Subaru Select Monitor and
ECM normal?
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Perform the diagCHECK ECM.
nosis according to
DTC concerning
ECM.
CHECK FUSE (NO. 32).
Is the fuse (No. 32) blown out? Replace the fuse Go to step 4.
1) Turn the ignition switch to OFF.
(No. 32). If the new
2) Remove the fuse.
fuse (No. 32) has
blown out easily,
repair the short circuit of harness
between fuse (No.
32) and TCM.
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 5.
Repair the open
TCM AND ECM.
circuit of harness
1) Turn the ignition switch to OFF.
between TCM and
2) Disconnect the connector from TCM and
transmission contransmission.
nector, or poor
3) Measure the resistance of harness
contact of connecbetween TCM connector and transmission
tor.
connector.
Connector & terminal
Turbo model:
(B55) No. 19 — (B137) No. 9:
Non-turbo model:
(B55) No. 19 — (B136) No. 31:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1 Go to step 6.
Repair the short
TCM AND ECM.
MΩ?
circuit of harness
Measure the resistance of harness between
between transmisTCM connector and chassis ground.
sion connector
Connector & terminal
and chassis
(B55) No. 19 — Chassis ground:
ground.
CHECK TCM OUTPUT SIGNAL.
Is the voltage less than 1 V?
Go to step 7.
Replace the TCM.
1) Connect the TCM and ECM connector.
<Ref. to 5AT-55,
2) Turn the ignition switch to ON. (engine
Transmission ConOFF)
trol Module
3) Shift the select lever to “P” range.
(TCM).>
4) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 19 (+) — Chassis ground (–):
CHECK TCM OUTPUT SIGNAL.
Is the voltage more than 10 V? Go to step 8.
Replace the TCM.
<Ref. to 5AT-55,
1) Shift the select lever to “D” range.
2) Measure the voltage between TCM conTransmission Connector and chassis ground.
trol Module
Connector & terminal
(TCM).>
(B55) No. 19 (+) — Chassis ground (–):
CHECK POOR CONTACT.
Is there any open or poor con- Repair the poor
Check the neutral
tact of connector (loosing ter- contact.
switch of ECM.
minal, entering foreign matter,
damaging connector body)?
5AT(diag)-90
asieps_tobira.book 91 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AD:DTC P0882 TCM POWER INPUT SIGNAL LOW
DTC DETECTING CONDITION:
Malfunction of PVIGN power supply relay or open, short circuit of PVIGN power supply circuit.
TROUBLE SYMPTOM:
Gear is not changed.
WIRING DIAGRAM:
IGNITION
SWITCH
MAIN SBF
SBF-8
No.12
B54
BATTERY
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
B357
2
3
1 2
3
4
E
P-VING RELAY
B54
8
7
10
4
1
B357
TCM
AT-03294
5AT(diag)-91
asieps_tobira.book 92 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
Step
CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the MAIN SBF, SBF 8 and fuse
(No. 12), and then check those are not blown
out.
Check
Is the fuse blown out?
CHECK INPUT VOLTAGE FOR PVIGN RE- Is the voltage 10 — 13 V?
LAY.
Measure the voltage between PVIGN relay and
chassis ground.
Connector & terminal
(B357) No. 2 (+) — Chassis ground (–):
(B357) No. 3 (+) — Chassis ground (–):
CHECK HARNESS BETWEEN PVIGN REIs the resistance less than 1 Ω?
LAY OF TCM.
Measure the resistance between TCM connector and PVIGN relay connector.
Connector & terminal
(B54) No. 10 — (B357) No. 1:
(B54) No. 7 — (B357) No. 4:
(B54) No. 8 — (B357) No. 4:
CHECK PVIGN POWER SUPPLY CIRCUIT. Is the voltage 10 — 13 V?
1) Turn the ignition switch to ON. (engine
OFF)
2) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B54) No. 7 (+) — Chassis ground (–):
(B54) No. 8 (+) — Chassis ground (–):
Yes
No
Replace the fuse. Go to step 2.
If the replaced
fuse has blown out
easily, repair the
short circuit of harness of each fuse.
Go to step 3.
Repair the open
circuit of harness
between fuse (No.
12) and PVIGN
relay.
Go to step 4.
Repair the open
circuit of harness.
Temporary poor
Go to step 5.
contact. Recheck
the harness
between TCM and
relay. (Lightly
move the harness
and check that the
open or short circuit is not
occurred.)
CHECK PVIGN RELAY OUTPUT OF TCM.
Is the voltage less than 1.5 V? Replace the
Replace the TCM.
Measure the voltage between TCM connector
PVIGN relay.
<Ref. to 5AT-55,
and chassis ground.
Transmission ConConnector & terminal
trol Module
(B55) No. 11 (+) — Chassis ground (–):
(TCM).>
5AT(diag)-92
asieps_tobira.book 93 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AE:DTC P0957 BACKUP LIGHT RELAY CIRCUIT LOW
DTC DETECTING CONDITION:
Short circuit of back-up light relay output circuit
TROUBLE SYMPTOM:
Back-up light does not illuminate in “R” range.
WIRING DIAGRAM:
IGNITION
RELAY
MAIN SBF
SBF-8
B55
BATTERY
No.18
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8
17
23
9
18
24
B356
2
4
1 2
3
4
E
BACK-UP LIGHT
RELAY
3
1
B356
11
BACK-UP LIGHT CIRCUIT
B55
TCM
AT-03458
5AT(diag)-93
asieps_tobira.book 94 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
CHECK DTC OF TCM.
Check
Is DTC of Transmission Range
Sensor Circuit (PRNDL Input)
detected?
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TCM AND BACK-UP LIGHT RELAY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM and
back-up light relay.
3) Measure the resistance of harness
between TCM connector and back-up light
relay connector.
Connector & terminal
(B55) No. 11 — (B356) No. 2:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TCM AND TRANSMISSION.
MΩ?
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK TCM OUTPUT SIGNAL.
Is the voltage more than 10 V?
1) Turn the ignition switch to ON. (engine
OFF)
2) Move the select lever to “P” range.
3) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK TCM OUTPUT SIGNAL.
Is the voltage 1.0 — 2.0 V?
1) Set the select lever to “R” range.
2) Is the voltage less than 1 V?
3) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK INPUT VOLTAGE FOR BACK-UP
LIGHT RELAY.
Measure the voltage between back-up light
relay and chassis ground.
Is the voltage 10 — 13 V?
5AT(diag)-94
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Repair the open
circuit of harness
between TCM and
transmission connector, or poor
contact of connector.
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Go to step 6.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Replace the back- Check open or
up light relay.
short circuit of harness between fuse
(No. 18) and backup light relay.
asieps_tobira.book 95 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AF:DTC P0958 BACKUP LIGHT RELAY CIRCUIT HIGH
DTC DETECTING CONDITION:
Backup light relay malfunction, or open/short circuit in back-up light relay output circuit
TROUBLE SYMPTOM:
• Back-up light does not illuminate in “R” range.
• Back-up light always illuminate except in “R” range.
WIRING DIAGRAM:
IGNITION
RELAY
MAIN SBF
SBF-8
B55
BATTERY
No.18
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8
17
23
9
18
24
B356
2
4
1 2
3
4
E
BACK-UP LIGHT
RELAY
3
1
B356
11
BACK-UP LIGHT CIRCUIT
B55
TCM
AT-03458
5AT(diag)-95
asieps_tobira.book 96 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
Step
CHECK DTC OF TCM.
Check
Is DTC of Transmission Range
Sensor Circuit (PRNDL Input)
detected?
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TCM AND BACK-UP LIGHT RELAY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM and
back-up light relay.
3) Measure the resistance of harness
between TCM connector and back-up light
relay connector.
Connector & terminal
(B55) No. 11 — (B356) No. 2:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TCM AND TRANSMISSION.
MΩ?
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK TCM OUTPUT SIGNAL.
Is the voltage more than 10 V?
1) Turn the ignition switch to ON. (engine
OFF)
2) Move the select lever to “P” range.
3) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK TCM OUTPUT SIGNAL.
Is the voltage 1.0 — 2.0 V or
less?
1) Set the select lever to “R” range.
2) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
CHECK INPUT VOLTAGE FOR BACK-UP
Is the voltage 10 — 13 V?
LIGHT RELAY.
Measure the voltage between back-up light
relay and chassis ground.
5AT(diag)-96
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Repair the open
circuit of harness
between TCM and
transmission connector, or poor
contact of connector.
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Go to step 6.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Replace the back- Check open or
up light relay.
short circuit of harness between fuse
(No. 18) and backup light relay.
b06usen011.fm
97 ページ ２００６年２月１４日　火曜日　午前９時２２分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AG:DTC P1601 TCM DATA COMMUNICATION FAILURE
DTC DETECTING CONDITION:
Communication does not complete between control valve memory box.
TROUBLE SYMPTOM:
Shifting quality malfunction
WIRING DIAGRAM:
B54
TCM
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7 8 9
16 17 18
22 23 24
6
21
12
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
11
9
10
5
B11
T15
8
9
10
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T15
TRANSMISSION
AT-03471
1
2
Step
CHECK IMPROPER CONNECTION OF
TRANSMISSION CONNECTOR.
Check loose connection on TCM connector
(B54).
CHECK DTC OF TCM.
Check
Yes
Is there improper connection of Connect it
connector?
securely.
Is DTC of oil pressure switch
detected?
5AT(diag)-97
No
Go to step 2.
Perform the diag- Go to step 3.
nosis according to
DTC.
asieps_tobira.book 98 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3
4
5
6
7
8
Step
CHECK TCM OUTPUT SIGNAL.
1) Turn the ignition switch to ON. (engine
OFF)
2) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B54) No. 16 (+) — Chassis ground (–):
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B54) No. 12 — (B11) No. 9:
(B54) No. 21 — (B11) No. 10:
(B54) No. 6 — (B11) No. 11:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 12 — Chassis ground:
(B54) No. 21 — Chassis ground:
(B54) No. 6 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION CONNECTOR AND CONTROL VALVE BODY CONNECTOR.
Measure the resistance between transmission
connector and control valve body connector.
Connector & terminal
(B11) No. 9 — (T15) No. 10:
(B11) No. 10 — (T15) No. 9:
(B11) No. 11 — (T15) No. 8:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION CONNECTOR AND CONTROL VALVE BODY CONNECTOR.
Measure the resistance between transmission
connector and chassis ground.
Connector & terminal
(B11) No. 9 — Chassis ground:
(B11) No. 10 — Chassis ground:
(B11) No. 11 — Chassis ground:
CHECK POOR CONTACT.
NOTE:
Data communication malfunction is detected
when the malfunction occurred on inspection
area above while transmission assembly is replacing or “Clear Memory 2” is performing.
When the repair is performed with following diagnosis above, perform the “Clear Memory 2”,
and then recheck that the DTC of TCM data
communication malfunction is not detected.
Check
Is the voltage 10 — 13 V?
Yes
Go to step 4.
No
Go to step 5.
Is the resistance less than 1 Ω? Go to step 5.
Repair the open
circuit of harness
between TCM and
transmission connector, or poor
contact of connector.
Is the resistance more than 1
MΩ?
Go to step 6.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the resistance less than 1 Ω? Go to step 7.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Repair the short
circuit of harness
between transmission connector
and control valve
body connector.
Go to step 8.
Is there any open or poor con- Repair the poor
tact of connector (loosing ter- contact.
minal, entering foreign matter,
damaging connector body)?
5AT(diag)-98
Replace the transmission assembly.
<Ref. to 5AT-33,
Automatic Transmission Assembly.>
asieps_tobira.book 99 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AH:DTC P1706 AT VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION (REAR
WHEEL)
DTC DETECTING CONDITION:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
• Shifting quality malfunction
• Tight corner braking phenomenon occurs.
WIRING DIAGRAM:
B54
A:
TCM
B54
B:
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
B55
7
16
22
8 9
17 18
23 24
A16
B18
A:
B:
A7
B5
1 2 3 4
10 11 12 13
19 20 21
A:
B11
B:
B12
B55
5 6 7
14 15 16
22
A:
8
17
23
9
18
24
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
B:
B12
1 2 3 4
5 6 7 8
E
REAR VEHICLE SPEED SENSOR
AT-03298
1
Step
Check
CHECK TCM I/O SIGNAL.
Is TCM I/O signal OK?
Check I/O signal of power supply, ground and
PVIGN power supply relay. <Ref. to 5AT(diag)12, ELECTRICAL SPECIFICATION, Transmission Control Module (TCM) I/O Signal.>
5AT(diag)-99
Yes
Go to step 2.
No
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
P0882 for PVIGN
power supply
relay.
asieps_tobira.book 100 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
2
3
4
5
6
Step
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
1) Disconnect the connectors from TCM and
transmission.
2) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B55) No. 18 — (B12) No. 5:
(B54) No. 16 — (B11) No. 7:
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B54) No. 16 — Chassis ground:
(B55) No. 18 — Chassis ground:
CHECK TCM POWER SUPPLY OUTPUT.
1) Connect the connector to TCM. (Transmission connector is disconnected)
2) Turn the ignition switch to ON. (engine
OFF)
3) Measure the voltage between transmission
connector and chassis ground.
Connector & terminal
(B11) No. 7 (+) — Chassis ground (–):
CHECK HARNESS ASSEMBLY (TURBINE
SPEED SENSOR GROUND).
Check the installing condition of ground connecting harness (used for both of turbine
speed sensor 1, rear vehicle speed sensor).
Check
Yes
Is the resistance less than 1 Ω? Go to step 3.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance more than 1
MΩ?
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the voltage 10 — 13 V?
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the ground connecting harness installed to transmission
body correctly, or the harness
and connector terminals not
damaged?
Go to step 6.
When the poor
installation of
ground connecting harness, install
it securely.
Replace the transmission assembly
when the harness
is damaged. <Ref.
to 5AT-33, Automatic Transmission Assembly.>
CHECK INPUT SIGNAL FOR TCM USING
Does the value of the front
Even if the SPORT Replace the transSUBARU SELECT MONITOR.
wheel speed depending on the indicator light
mission harness.
1) Connect all connectors.
acceleration and deceleration blinks, the system
2) Lift-up the vehicle and support with rigid
of the vehicle?
is in normal condiracks.
tion. A temporary
poor contact of
NOTE:
connector or harRaise all wheels off floor.
ness may be the
3) Start the engine, and drive the vehicle.
cause. Repair poor
4) Read the current data of front wheel speed
contact of harusing Subaru Select Monitor. <Ref. to
ness in ATF tem5AT(diag)-16, OPERATION, Subaru Select
perature sensor
Monitor.>
and transmission
NOTE:
connector.
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the ABS
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-20, CLEAR
MEMORY MODE, OPERATION, Subaru Select Monitor.>
5AT(diag)-100
asieps_tobira.book 101 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AI: DTC P1707 AT AWD SOLENOID VALVE CIRCUIT MALFUNCTION
DTC DETECTING CONDITION:
Output signal circuit of transfer solenoid is open or shorted.
TROUBLE SYMPTOM:
• Tight corner braking phenomenon occurs.
• Drivability getting worse.
WIRING DIAGRAM:
A:
TCM
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8 9
17 18
23 24
A5
A14
B54
B23
A:
B54
E
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7
16
22
8 9
17 18
23 24
8
B11
T4
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
5
11
T16
T16
1 2
3 4
5 6 7 8 9 10 11 12
TRANSMISSION
AT-03459
5AT(diag)-101
asieps_tobira.book 102 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B55) No. 23 — (B11) No. 8:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 23 — Chassis ground:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 8 — (T16) No. 11:
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 11 — Transmission ground:
CHECK AWD SOLENOID.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T16) No. 11 — Transmission ground:
CHECK POOR CONTACT.
Check that there are no poor contact in TCM
connector, transmission connector and control
valve body connector.
CHECK AFTER REPAIR.
1) Perform the Clear Memory Mode.
2) Drive for a while, read the DTC, and check
that there is no faulty.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM connector and transmission connector.
Is the resistance more than 1
MΩ?
Go to step 3.
Repair the short
circuit of harness
between TCM connector and transmission connector.
Is the resistance less than 1 Ω? Go to step 4.
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Is the resistance more than 1
MΩ?
Go to step 5.
Repair the short
circuit of harness
between control
valve body connector and transmission ground.
Is the resistance between 3 — Go to step 6.
9 Ω?
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Go to step 7.
Is there any loosing terminal,
entering foreign matter, damaging connector body?
Repair the poor
contact.
Is DTC displayed?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
5AT(diag)-102
Temporary poor
contact or open
circuit occurs.
Recheck that the
harness connector has no faulty.
asieps_tobira.book 103 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AJ:DTC P1710 TORQUE CONVERTER TURBINE 2 SPEED SIGNAL CIRCUIT 2
MALFUNCTION
DTC DETECTING CONDITION:
Input signal circuit of TCM is open or shorted.
TROUBLE SYMPTOM:
• Excessive shift shock
• Does not shift to 5th
WIRING DIAGRAM:
B54
A:
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
TCM
A:
B54
B:
8 9
17 18
23 24
B55
B55
B22
B:
A16
7
16
22
1 2 3 4
10 11 12 13
19 20 21
5 6 7
14 15 16
22
8
17
23
9
18
24
B11
B12
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
7
6
B11
T4
5
T3
3
T15
15
B12
T16
1 2 3 4
5 6 7 8
T15
E
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
TURBINE SPEED SENSOR 2
T16
TRANSMISSION
1 2
3 4
5 6 7 8 9 10 11 12
AT-03460
5AT(diag)-103
asieps_tobira.book 104 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
Step
Check
CHECK TCM I/O SIGNAL.
Is TCM I/O signal OK?
Check I/O signal of power supply, ground and
PVIGN power supply relay. <Ref. to 5AT(diag)12, ELECTRICAL SPECIFICATION, Transmission Control Module (TCM) I/O Signal.>
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
1) Disconnect the connectors from TCM and
transmission.
2) Measure the resistance of harness
between TCM connector and transmission
connector.
Connector & terminal
(B55) No. 22 — (B12) No. 6:
(B54) No. 16 — (B11) No. 7:
CHECK TCM AND TRANSMISSION HARNESS CONNECTOR.
Measure the resistance of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 22 — Chassis ground:
(B54) No. 16 — Chassis ground:
CHECK TCM POWER SUPPLY OUTPUT.
1) Connect the connector to TCM. (Transmission connector is disconnected)
2) Turn the ignition switch to ON. (engine
OFF)
3) Measure the voltage between transmission
connector and chassis ground.
Connector & terminal
(B11) No. 7 (+) — Chassis ground (–):
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect all connectors.
2) Lift-up the vehicle and support with rigid
racks.
NOTE:
Raise all wheels off floor.
3) Start the engine, and set the vehicle in 1st
speed driving condition of manual mode.
4) Read the current data of torque converter
turbine speed 2 using Subaru Select Monitor.
<Ref. to 5AT(diag)-16, OPERATION, Subaru
Select Monitor.>
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this
does not indicate a malfunction. When AT control diagnosis is finished, perform the ABS
memory clearance procedure of on-board diagnostics system. <Ref. to VDC(diag)-20, CLEAR
MEMORY MODE, OPERATION, Subaru Select Monitor.>
Yes
Go to step 2.
Is the resistance less than 1 Ω? Go to step 3.
No
Repair the open or
short circuit for
power supply and
ground. Perform
the diagnosis
according to DTC
P0882 for PVIGN
power supply
relay.
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance less than 1
MΩ?
Go to step 4.
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the voltage 10 — 13 V?
Go to step 5.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Does the value of the turbine
speed sensor 2 change
depending on the acceleration,
deceleration and shifting gear
of the vehicle?
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contact of
harness of turbine
speed sensor 2
and transmission
connector.
5AT(diag)-104
asieps_tobira.book 105 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
6
7
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T3) No. 6 — (T6) No. 3:
(T4) No. 7 — (T5) No. 15:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
MΩ?
TRANSMISSION AND CONTROL VALVE
BODY.
Measure the resistance between transmission
ground and control valve body connector.
Connector & terminal
(T6) No. 3 — Transmission ground:
(T5) No. 15 — Transmission ground:
5AT(diag)-105
Yes
Go to step 7.
No
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
Repair the short
circuit of harness
between transmission connector
and transmission
ground.
asieps_tobira.book 106 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AK:DTC P1716 ATF TEMP. SENSOR 2 CIRCUIT LOW
DTC DETECTING CONDITION:
Input signal circuit to ATF temperature sensor 2 is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
B54
TCM
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
11
13
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
6
12
5
T4
T15
3 4
1 2
5 6 7 8 9 10 11 12
2
T15
1
T16
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
TRANSMISSION
AT-03461
5AT(diag)-106
asieps_tobira.book 107 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 13 — (B11) No. 12:
(B54) No. 11 — (B11) No. 6:
CHECK ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the connectors to transmission
and TCM.
3) Turn the ignition switch to ON and start
engine.
4) Warm-up the transmission until the ATF
temperature reaches to 80°C (176°F).
NOTE:
If the ambient temperature falls below 0°C
(32°F), drive the vehicle until the ATF reaches
its operating temperature.
5) Disconnect the connector from transmission.
6) Measure the resistance between transmission connector terminals.
Connector & terminal
(T4) No. 6 — (T4) No.12:
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission
connector terminals.
Connector & terminal
(T4) No. 6 — (T4) No.12:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connector.
2) Turn the ignition switch to ON. (engine
OFF)
3) Read the ATF temperature using Subaru
Select Monitor.
Check
Yes
Is the resistance less than 1 Ω? Go to step 2.
No
Repair the open
circuit of harness
between TCM and
transmission connector.
Is the resistance between 300 Go to step 3.
— 700 Ω?
Go to step 5.
Does the resistance value
Go to step 4.
increase while the ATF temperature decreases?
Go to step 5.
Does the ATF temperature
gradually decrease?
5AT(diag)-107
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contacts of
harnesses of ATF
temperature sensor and transmission connector.
asieps_tobira.book 108 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω?
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission connector and control valve body connector.
Connector & terminal
(T4) No. 12 — (T15) No. 1:
(T4) No. 6 — (T16) No. 2:
CHECK POOR CONTACT.
Is there poor contact?
Check poor contact of ATF temperature sensor
1 circuit.
5AT(diag)-108
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Repair the open
circuit of harness
between transmission connector
and control valve
body connector.
Repair the poor
contact.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
asieps_tobira.book 109 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AL:DTC P1717 ATF TEMP. SENSOR 2 CIRCUIT HIGH
DTC DETECTING CONDITION:
Input signal circuit to ATF temperature sensor 2 is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock
WIRING DIAGRAM:
B54
TCM
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
11
13
B54
B11
1 2
3 4
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
B11
6
12
5
T4
T15
3 4
1 2
5 6 7 8 9 10 11 12
2
T15
1
T16
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16
T16
TRANSMISSION
AT-03461
5AT(diag)-109
asieps_tobira.book 110 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM connector and chassis ground.
Connector & terminal
(B54) No. 13 — (B11) No. 12:
(B54) No. 11 — (B11) No. 6:
CHECK ATF TEMPERATURE SENSOR.
1) Turn the ignition switch to OFF.
2) Connect the connectors to transmission
and TCM.
3) Turn the ignition switch to ON and start
engine.
4) Warm-up the transmission until the ATF
temperature reaches to 80°C (176°F).
NOTE:
If the ambient temperature falls below 0°C
(32°F), drive the vehicle until the ATF reaches
its operating temperature.
5) Disconnect the connector from transmission.
6) Measure the resistance between transmission connector terminals.
Connector & terminal
(T4) No. 6 — (T4) No.12:
CHECK ATF TEMPERATURE SENSOR.
Measure the resistance between transmission
connector terminals.
Connector & terminal
(T4) No. 6 — (T4) No.12:
CHECK INPUT SIGNAL FOR TCM USING
SUBARU SELECT MONITOR.
1) Connect the connector.
2) Turn the ignition switch to ON. (engine
OFF)
3) Read the ATF temperature using Subaru
Select Monitor.
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 2.
No
Repair the short
circuit of harness
between TCM and
transmission connector.
Is the resistance between 300 Go to step 3.
— 700 Ω?
Go to step 5.
Does the resistance value
Go to step 4.
increase while the ATF temperature decreases?
Go to step 5.
Does the ATF temperature
gradually decrease?
5AT(diag)-110
Even if the SPORT Go to step 6.
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause. Repair the
poor contacts of
harnesses of ATF
temperature sensor and transmission connector.
asieps_tobira.book 111 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5
6
Step
Check
CHECK HARNESS CONNECTOR BETWEEN Is the resistance more than 1
TRANSMISSION AND CONTROL VALVE
MΩ?
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmission.
3) Remove the transmission connector from
bracket.
4) Lift up the vehicle and place it on rigid
racks.
NOTE:
Raise all wheels off floor.
5) Drain the ATF.
CAUTION:
Do not drain ATF until it cools down.
6) Remove the oil pan, and disconnect the
connector from control valve body connector.
7) Measure the resistance between transmission ground and control valve body connector.
Connector & terminal
(T15) No. 1 — Chassis ground:
(T16) No. 2 — Chassis ground:
CHECK POOR CONTACT.
Is there poor contact?
Check poor contact of ATF temperature sensor
1 circuit.
Yes
Replace the control valve body.
<Ref. to 5AT-52,
Control Valve
Body.>
No
Repair the short
circuit of harness
between transmission connector
and control valve
body connector.
Repair the poor
contact.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
AM:DTC P1718 AT CAN COMMUNICATION CIRCUIT
NOTE:
DTC P1718 AT CAN communication circuit, refer to “LAN System”. <Ref. to LAN(diag)-12, READ DIAGNOSTIC TROUBLE CODE (DTC), OPERATION, Subaru Select Monitor.>
5AT(diag)-111
asieps_tobira.book 112 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AN:DTC P1760 LATERAL ACCELERATION SENSOR PERFORMANCE PROBLEM
DTC DETECTING CONDITION:
Lateral G sensor output voltage fault
WIRING DIAGRAM:
A:
A:
B54
B:
B55
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
7
16
22
8
17
23
B6
B5
TCM
A13
B54
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
9
18
24
B359
3
1
2
1 2 3
B359
G SENSOR
AT-01634
5AT(diag)-112
asieps_tobira.book 113 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
Step
CHECK VEHICLE CONDITION.
2
CHECK DTC OF TCM.
3
CHECK DTC OF ABS.
4
CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the Subaru Select Monitor display.
CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Turn the ignition switch to OFF.
2) Remove the console box.
3) Remove the lateral G sensor from vehicle.
(Do not disconnect the connector.)
4) Turn the ignition switch to ON.
5) Select {Current Data Display & Save} in
Subaru Select Monitor.
6) Read the Subaru Select Monitor display.
CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
Read the Subaru Select Monitor display.
5
6
7
8
9
10
Check
Yes
Is the vehicle a model with
Go to step 2.
VDC, which has the VDC OFF
switch on the instrument
panel?
Is DTC of AT CAN communica- Perform the diagtion detected?
nosis according to
DTC.
Is DTC of ABS detected?
Perform the diagnosis according to
DTC of ABS.
Is the reading indicated on
monitor display 2.3 to 2.7 V?
Go to step 5.
No
Go to step 4.
Go to step 3.
Temporary poor
contact occurs.
Recheck for defective parts in harness and
connectors.
Go to step 10.
Is the value on the display 3.3 Go to step 6.
— 4.3 V with the lateral G sensor inclined 90° to right?
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the value on the display 0.7 Go to step 7.
— 1.7 V with the lateral G sensor inclined 90° to left?
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Go to step 8.
CHECK POOR CONTACT OF CONNECTOR. Is there poor contact in conTurn the ignition switch to OFF.
nector between TCM and lateral G sensor?
CHECK ABSCM&H/U.
Is the same DTC displayed?
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
CHECK OTHER DTC DETECTION.
Is any other DTC displayed?
CHECK OPEN CIRCUIT IN LATERAL G SEN- Is the resistance between 5.0
SOR OUTPUT HARNESS AND GROUND
and 6.0 kΩ?
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM connector terminals.
Connector & terminal
(B54) No. 13 — (B55) No. 6:
5AT(diag)-113
Repair the connector.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the diagnosis according to
DTC.
Go to step 11.
Go to step 9.
Temporary poor
contact occurs.
Repair the harness between lateral G sensor and
TCM.
asieps_tobira.book 114 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
11
12
13
14
15
Step
CHECK LATERAL G SENSOR.
1) Remove the console box.
2) Remove the lateral G sensor from vehicle.
3) Connect the connector to lateral G sensor.
4) Connect the connector to ABSCM&H/U.
5) Turn the ignition switch to ON.
6) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK ABSCM&H/U.
1) Turn the ignition switch to OFF.
2) Connect all connectors.
3) Perform the Clear Memory Mode.
4) Perform the Inspection Mode.
5) Read the DTC.
CHECK OTHER DTC DETECTION.
Check
Yes
Is the voltage 2.3 — 2.7 V
Go to step 12.
when lateral G sensor is in horizontal position?
No
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the voltage 3.3 — 4.3 V
when lateral G sensor is
inclined 90° to right?
Go to step 13.
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the voltage 0.7 — 1.7 V
when lateral G sensor is
inclined 90° to left?
Go to step 14.
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the same DTC displayed?
Replace the TCM. Go to step 15.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is any other DTC displayed?
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
5AT(diag)-114
asieps_tobira.book 115 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AO:DTC P1761 LATERAL ACCELERATION SENSOR CIRCUIT LOW
DTC DETECTING CONDITION:
• Lateral G sensor open circuit or output voltage fault (Model without VDC)
• CAN communication failure (Model with VDC)
WIRING DIAGRAM:
A:
A:
B54
B:
B55
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
7
16
22
8
17
23
B6
B5
TCM
A13
B54
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
9
18
24
B359
3
1
2
1 2 3
B359
G SENSOR
AT-01634
1
Step
CHECK VEHICLE CONDITION.
2
CHECK DTC OF TCM.
Check
Yes
No
Is the vehicle a model with
Go to step 2.
Go to step 4.
VDC, which has the VDC OFF
switch on the instrument
panel?
Is DTC of AT CAN communica- Perform the diag- Go to step 3.
tion detected?
nosis according to
DTC.
5AT(diag)-115
asieps_tobira.book 116 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
3
4
5
6
7
8
9
10
11
Step
CHECK DTC OF ABS.
Check
Is DTC of ABS detected?
CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the lateral G sensor output on Subaru
Select Monitor.
CHECK POOR CONTACT OF CONNECTOR.
Turn the ignition switch to OFF.
Is the reading indicated on
monitor display 2.3 to 2.7 V
when lateral G sensor is level?
CHECK ABSCM&H/U.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
CHECK OTHER DTC DETECTION.
Is there poor contact in connector between TCM and lateral G sensor?
Is the same DTC displayed?
Is any other DTC displayed?
Yes
No
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC of ABS.
Recheck for defective parts in harness and
connectors.
Go to step 5.
Go to step 8.
Repair the connector.
Go to step 6.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the diagnosis according to
DTC.
Go to step 9.
Go to step 7.
Go to step 10.
Repair the harness between lateral G sensor and
TCM.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
CHECK OPEN CIRCUIT IN LATERAL G SENSOR OUTPUT HARNESS AND GROUND
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM connector terminals.
Connector & terminal
(B54) No. 13 — (B55) No. 6:
CHECK GROUND SHORT OF HARNESS.
Measure the resistance between TCM connector and chassis ground.
Connector & terminal
(B54) No. 13 — Chassis ground:
Is the resistance between 5.0
and 6.0 kΩ?
CHECK LATERAL G SENSOR.
1) Remove the console box.
2) Remove the lateral G sensor from vehicle.
3) Connect the connector to lateral G sensor.
4) Connect the TCM connector.
5) Turn the ignition switch to ON.
6) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
Is the voltage 2.3 — 2.7 V
Go to step 11.
when lateral G sensor is in horizontal position?
Is the resistance more than 1
MΩ?
Is the voltage 3.3 — 4.3 V
when lateral G sensor is
inclined 90° to right?
5AT(diag)-116
Go to step 12.
Temporary poor
contact occurs.
Repair the harness between lateral G sensor and
TCM.
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
asieps_tobira.book 117 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
12
13
14
Step
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect all connectors.
3) Perform the Clear Memory Mode.
4) Perform the Inspection Mode.
5) Read the DTC.
CHECK OTHER DTC DETECTION.
Check
Is the voltage 0.7 — 1.7 V
when lateral G sensor is
inclined 90° to left?
Yes
Go to step 13.
Is the same DTC displayed?
Replace the TCM. Go to step 14.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is any other DTC displayed?
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
5AT(diag)-117
No
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
asieps_tobira.book 118 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AP:DTC P1762 LATERAL ACCELERATION SENSOR CIRCUIT HIGH
DTC DETECTING CONDITION:
Lateral G sensor output voltage fault
WIRING DIAGRAM:
A:
A:
B54
B:
B55
1 2 3 4 5 6
10 11 12 13 14 15
19 20 21
7
16
22
8 9
17 18
23 24
7
16
22
8
17
23
B6
B5
TCM
A13
B54
B:
B55
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
9
18
24
B359
3
1
2
1 2 3
B359
G SENSOR
AT-01634
1
Step
CHECK VEHICLE CONDITION.
2
CHECK DTC OF TCM.
3
CHECK DTC OF ABS.
Check
Yes
Is the vehicle a model with
Go to step 2.
VDC, which has the VDC OFF
switch on the instrument
panel?
Is DTC of AT CAN communica- Perform the diagtion detected?
nosis according to
DTC.
Is DTC of ABS detected?
Perform the diagnosis according to
DTC of ABS.
5AT(diag)-118
No
Go to step 4.
Go to step 3.
Temporary poor
contact occurs.
Recheck for defective parts in harness and
connectors.
asieps_tobira.book 119 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
4
5
6
7
8
9
10
11
12
13
14
Step
CHECK OUTPUT OF LATERAL G SENSOR
USING SUBARU SELECT MONITOR.
1) Select {Current Data Display & Save} in
Subaru Select Monitor.
2) Read the lateral G sensor output on Subaru
Select Monitor.
CHECK POOR CONTACT OF CONNECTOR.
CHECK ABSCM&H/U.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
CHECK OTHER DTC DETECTION.
No
Go to step 8.
Is there poor contact in connector between TCM and lateral G sensor?
Is the same DTC displayed?
Repair the connector.
Go to step 6.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the diagnosis according to
DTC.
Go to step 9.
Go to step 7.
Is the resistance between 4.3
and 4.9 kΩ?
Go to step 10.
Repair the harness connector
between the lateral
G sensor and
ABSCM&H/U.
Is the voltage less than 1 V?
Go to step 11.
Repair the harness between lateral G sensor and
TCM.
Is the voltage less than 1 V?
Go to step 12.
Repair the harness between lateral G sensor and
TCM.
Is there poor contact in connector between TCM and lateral G sensor?
Is the same DTC displayed?
Repair the connector.
Go to step 13.
Is any other DTC displayed?
CHECK INFORMATION STORED IN FREEZE
FRAME DATA.
Read the lateral G sensor output on Subaru
Select Monitor.
CHECK OPEN CIRCUIT IN LATERAL G SENSOR OUTPUT HARNESS AND GROUND
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM connector terminals.
Connector & terminal
(B55) No. 5 — No. 1:
CHECK BATTERY SHORT OF HARNESS.
1) Turn the ignition switch to OFF.
2) Remove the console box.
3) Disconnect the connector from the lateral G
sensor.
4) Disconnect the connector from TCM.
5) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 6 (+) — Chassis ground (–):
CHECK BATTERY SHORT OF HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between TCM connector and chassis ground.
Connector & terminal
(B55) No. 6 (+) — Chassis ground (–):
CHECK POOR CONTACT OF CONNECTOR.
CHECK TCM.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
CHECK OTHER DTC DETECTION.
Check
Yes
Is the reading indicated on
Go to step 5.
monitor display 2.3 to 2.7 V
when lateral G sensor is level?
Is the reading on monitor display more than 4.65 V?
Is any other DTC displayed?
5AT(diag)-119
Temporary poor
contact occurs.
Go to step 15.
Replace the TCM. Go to step 14.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
asieps_tobira.book 120 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
15
16
17
18
19
20
21
22
Step
CHECK LATERAL G SENSOR INPUT VOLTAGE.
1) Turn the ignition switch to OFF.
2) Remove the console box.
3) Remove the lateral G sensor from vehicle.
(Do not disconnect the connector.)
4) Turn the ignition switch to ON.
5) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 1 (+) — No. 2 (–):
CHECK OPEN CIRCUIT IN LATERAL G SENSOR OUTPUT HARNESS AND GROUND
HARNESS.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from TCM.
3) Measure the resistance between TCM connector terminals.
Connector & terminal
(B55) No. 5 — No. 6:
CHECK LATERAL G SENSOR.
1) Connect the connector to lateral G sensor.
2) Connect the TCM connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between lateral G
sensor connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK LATERAL G SENSOR.
Measure the voltage between lateral G sensor
connector terminals.
Connector & terminal
(B359) No. 3 (+) — No. 2 (–):
CHECK POOR CONTACT OF CONNECTOR.
Turn the ignition switch to OFF.
CHECK ABSCM&H/U.
1) Connect all connectors.
2) Perform the Clear Memory Mode.
3) Perform the Inspection Mode.
4) Read the DTC.
CHECK OTHER DTC DETECTION.
Check
Is the voltage 4.75 — 5.25 V?
Yes
Go to step 16.
No
Repair the harness between lateral G sensor and
TCM.
Is the resistance between 5.0
and 5.6 kΩ?
Go to step 17.
Repair the harness between lateral G sensor and
TCM.
Is the voltage 2.3 — 2.7 V
Go to step 18.
when lateral G sensor is in horizontal position?
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the voltage 3.3 — 4.3 V
when lateral G sensor is
inclined 90° to right?
Go to step 19.
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is the voltage 0.7 — 1.7 V
when lateral G sensor is
inclined 90° to left?
Go to step 20.
Replace the lateral G sensor.
<Ref. to 5AT-56,
Lateral G Sensor.>
Is there poor contact in connector between TCM and lateral G sensor?
Is the same DTC displayed?
Repair the connector.
Go to step 21.
Is any other DTC displayed?
Replace the TCM. Go to step 22.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Perform the diag- Temporary poor
nosis according to contact occurs.
DTC.
AQ:DTC P1798 GEAR 1 ENGINE BRAKE
NOTE:
Refer to DTC P0771 for diagnostic procedure. <Ref. to 5AT(diag)-80, DTC P0771 SHIFT SOLENOID “E”
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
5AT(diag)-120
asieps_tobira.book 121 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AR:DTC P1799 INTERLOCK
DTC DETECTING CONDITION:
Perform the interlock judgment when the oil pressure switch pattern detects the specified interlock patterns
other than shifting.
TROUBLE SYMPTOM:
Locked to 2nd or 4th gear depending on the vehicle condition at the time of diagnosis.
1
2
3
4
5
Step
CHECK DTC OF TCM.
Check
Is any DTC of the followings
detected? P0751, P0753,
P0756, P0758, P0761, P0763,
P0766, P0768, P0771, P0773,
P1798
Is OFF displayed?
DRIVING CHECK.
1) Turn the ignition switch to OFF.
2) After starting the engine again, perform a
drive check with the following conditions.
(1) Keep the speed at 20 km/h with SPORT
shift mode in 1st.
(2) Read the I/C oil pressure switch data of
TCM while driving using Subaru Select
Monitor.
DRIVING CHECK.
Is OFF displayed?
1) Turn the ignition switch to OFF.
2) After starting the engine again, perform a
drive check based on the Inspection Mode with
the following conditions. <Ref. to 5AT(diag)-20,
PROCEDURE, Inspection Mode.>
(1) Keep the speed at 20 km/h with manual
mode in 1st.
(2) Read the D/C oil pressure switch data
while driving using Subaru Select Monitor.
DRIVING CHECK.
Is OFF displayed?
1) Turn the ignition switch to OFF.
2) After starting the engine again, perform a
drive check with the following conditions.
(1) Drive the vehicle at the same speed
with manual mode in 3rd, 4th and 5th.
(2) Read the LC/B oil pressure switch data
while driving using Subaru Select Monitor.
DRIVING CHECK.
Is DTC displayed?
1) Turn the ignition switch to OFF.
2) After restarting the engine, perform a drive
check based on the Inspection Mode. <Ref. to
5AT(diag)-20, PROCEDURE, Inspection
Mode.>
5AT(diag)-121
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Perform the diagnosis according to
DTC P0756.
Go to step 4.
Perform the diagnosis according to
DTC P0766.
Go to step 5.
Perform the diagnosis according to
DTC P0771.
Replace the control valve body.
Temporary poor
contact occurs.
Check that the
harness connector is not faulty.
asieps_tobira.book 122 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AS:DTC P1817 SPORT MODE SWITCH CIRCUIT (MANUAL SWITCH)
DTC DETECTING CONDITION:
Input signal circuit of manual mode switch is open or shorted.
TROUBLE SYMPTOM:
• Manual mode can not be set.
• “SPORT” light illuminates when shifting to “N” → “D” range.
WIRING DIAGRAM:
B116
1 2
3 4 5
6 7 8 9 10 11 12
IGNITION
SWITCH
MAIN SBF
SBF-6
No.5
B54
5 6 7
14 15 16
22
8 9
17 18
23 24
4
3
BATTERY
1 2 3 4
10 11 12 13
19 20 21
i10
COMBINATION
METER
SPORT
E
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
22
21
i10
A:
i84
BODY INTEGRATED
UNIT
C26
i84
B: B280
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
9
B30
B20
B: B280 C: B281 A:
A26
A27
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
C: B281
MANUAL
MODE
SWITCH
SELECT LEVER
3
4
8
B116
1 2 3
4 5 6 7
8 9 10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28
E
B54
TCM
AT-03462
5AT(diag)-122
asieps_tobira.book 123 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
5
6
7
8
Step
CHECK BODY INTEGRATED UNIT.
1) Connect the Subaru Select Monitor to the
data link connector.
2) Turn the ignition switch to ON. (engine
OFF)
3) Read the DTC of body integrated unit using
Subaru Select Monitor. <Ref. to LAN(diag)-12,
OPERATION, Subaru Select Monitor.>
CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Shift the select lever to “P” range.
2) Read the TIP mode SW data of body integrated unit using Subaru Select Monitor. <Ref.
to LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Shift the select lever from “P” to “D” range.
2) Read the TIP mode SW data of body integrated unit using Subaru Select Monitor. <Ref.
to LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
CHECK BODY INTEGRATED UNIT INPUT
SIGNAL.
1) Shift the select lever to manual mode.
2) Shift the select lever to other than “D”
range.
3) Read the TIP mode SW data of body integrated unit using Subaru Select Monitor. <Ref.
to LAN(diag)-12, OPERATION, Subaru Select
Monitor.>
CHECK DTC OF TCM.
Check
Is DTC displayed?
Yes
No
Perform the diag- Go to step 2.
nosis according to
DTC.
Is OFF displayed?
Go to step 3.
Is the indication on each range Go to step 4.
OFF?
Replace the select
lever assembly.
<Ref. to CS-19,
Select Lever.>
Is OFF displayed?
Replace the select
lever assembly.
<Ref. to CS-19,
Select Lever.>
Is DTC of Transmission Range
Sensor Circuit (PRNDL Input)
and AT CAN communication
circuit displayed?
Is the indication on each range
CHECK INPUT SIGNAL FROM TCM.
1) Shift the select lever from “P” to “D” range. OFF?
2) Read the TIP mode SW data of TCM using
Subaru Select Monitor. <Ref. to 5AT(diag)-16,
OPERATION, Subaru Select Monitor.>
CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND MANUAL MODE
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect harness connector from body
integrated unit and select lever.
3) Measure the harness resistance between
the body integrated unit and chassis ground.
Connector & terminal
(B281) No. 27 — Chassis ground:
CHECK MANUAL MODE SWITCH.
1) Shift the select lever to “P” range.
2) Measure the resistance between harness
connector terminals of manual mode switch.
Terminals
(B116) No. 9 — No. 8
Go to step 7.
Is the resistance more than 1
MΩ?
Is the resistance more than 1
MΩ?
5AT(diag)-123
Go to step 5.
Perform the diag- Go to step 6.
nosis according to
each DTC.
Even if the SPORT
indicator light
blinks, the system
is in normal condition. A temporary
poor contact of
connector or harness may be the
cause.
Go to step 8.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Check the body
integrated unit.
Replace the select
lever assembly.
<Ref. to CS-19,
Select Lever.>
Repair the short
circuit of harness
between body integrated unit and
manual mode.
asieps_tobira.book 124 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
AT:DTC P1840 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH A CIRCUIT
DTC DETECTING CONDITION:
Front brake oil pressure switch malfunction
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0751 for diagnostic procedure. <Ref. to 5AT(diag)-60, DTC P0751 SHIFT SOLENOID “A”
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AU:DTC P1842 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH C CIRCUIT
DTC DETECTING CONDITION:
Input clutch oil pressure switch is malfunction.
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0756 for diagnostic procedure. <Ref. to 5AT(diag)-65, DTC P0756 SHIFT SOLENOID “B”
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AV:DTC P1843 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH D CIRCUIT
DTC DETECTING CONDITION:
Direct clutch oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0766 for diagnostic procedure. <Ref. to 5AT(diag)-75, DTC P0766 SHIFT SOLENOID “D”
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
AW:DTC P1844 TRANSMISSION FLUID PRESSURE SENSOR/SWITCH E CIRCUIT
DTC DETECTING CONDITION:
High & low reverse clutch oil pressure switch malfunction.
TROUBLE SYMPTOM:
Excessive shift shock
NOTE:
Refer to DTC P0761 for diagnostic procedure. <Ref. to 5AT(diag)-70, DTC P0761 SHIFT SOLENOID “C”
PERFORMANCE OR STUCK OFF, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
5AT(diag)-124
asieps_tobira.book 125 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
15.Diagnostic Procedure without Diagnostic Trouble Code (DTC)
A: CHECK MANUAL MODE SWITCH
DIAGNOSIS:
Input signal circuit of manual mode switch is open or shorted.
TROUBLE SYMPTOM:
Does not shift on manual mode.
WIRING DIAGRAM:
A: B280
BODY INTEGRATED UNIT
B25
A20
A30
B15
B: B281
TB
7
DOWN
UP
MANUAL
MODE
SWITCH
B68
E
11
2
7
8
TB
SELECT LEVER
B116
ST4
4
3
4
2
3
6
10
ROLL CONNECTOR
E
TCM
DOWN
UP
DOWN
LH
UP
B54
RH
STEERING SHIFT SWITCH
A: B280
B54
1 2 3 4
10 11 12 13
19 20 21
5 6
14 15
7
16
22
8
17
23
9
18
24
B: B281
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
23 24 25
26 27
28 29 30
21 22
ST4
B68
1 2 3 4 5
6 7 8 9 10
1
2 3
4 5 6 7 8
4 5 6 7
1 2 3
8 9 10 11 12 13 14 15 16 17 18 19
27 28
22 23
24 25 26
20 21
B116
1 2
3 4
5 6 7 8 9 10
AT-03463
5AT(diag)-125
asieps_tobira.book 126 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
2
3
4
Step
Check
CHECK BODY INTEGRATED UNIT.
Is the ON/OFF normally
1) Perform ON/OFF operation on the manual detected?
mode switch.
2) Read the data of manual mode switch signal using Subaru Select Monitor.
CHECK DTC OF BODY INTEGRATED UNIT. Is DTC of CAN detected?
CHECK TCM.
1) Perform ON/OFF operation on the manual
mode switch.
2) Read the data of manual mode switch signal using Subaru Select Monitor.
CHECK TIP INDICATOR OF COMBINATION
METER.
5
CHECK DTC OF TCM.
6
CHECK DTC OF METER.
7
CHECK GROUND CIRCUIT OF MANUAL
MODE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from manual
mode switch.
3) Measure the resistance of harness
between manual mode switch connector and
chassis ground.
Connector & terminal
(B116) No. 6 — Chassis ground:
CHECK MANUAL MODE SWITCH.
Measure the resistance between manual mode
switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
CHECK MANUAL MODE SWITCH.
1) Move the select lever to manual mode.
2) Measure the resistance between manual
mode switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND MANUAL MODE
SWITCH.
1) Disconnect the connector from body integrated unit.
2) Measure the resistance of harness
between body integrated unit connector and
manual mode switch connector.
Connector & terminal
(B116) No. 5 — (B281) No. 15:
8
9
10
Is the ON/OFF normally
detected?
Yes
Go to step 2.
No
Go to step 7.
Perform the diag- Go to step 3.
nosis according to
DTC.
Go to step 4.
Go to step 5.
Is TIP indicator light normally
operated?
Go to step 6.
Replace the combination meter
assembly. <Ref. to
IDI-14, Combination Meter.>
Is DTC of CAN detected?
Perform the diag- Replace the TCM.
nosis according to <Ref. to 5AT-55,
DTC.
Transmission Control Module
(TCM).>
Is DTC of CAN detected?
Perform the diag- Replace the meter.
nosis according to
DTC.
Is the resistance less than 1 Ω? Go to step 8.
Repair the open
circuit of harness
between manual
mode switch and
chassis ground.
Is the resistance more than 1
MΩ?
Go to step 9.
Replace the guide
plate assembly.
Is the resistance less than 1 Ω? Go to step 10.
Replace the guide
plate assembly.
Is the resistance less than 1 Ω? Go to step 11.
Repair the open
circuit of harness
between manual
mode switch connector and TCM
connector, or poor
contact in connector.
5AT(diag)-126
asieps_tobira.book 127 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
11
12
13
14
15
16
17
Step
CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND MANUAL MODE
SWITCH.
1) Disconnect the connector from body integrated unit.
2) Measure the resistance of harness
between manual mode switch connector and
chassis ground.
Connector & terminal
(B116) No. 7 — Chassis ground:
CHECK INPUT SIGNAL FROM TCM.
1) Connect all connectors.
2) Turn the ignition switch to ON. (engine
OFF)
3) Measure the voltage of the signal to TCM.
Connector & terminal
(B281) No. 15 (+) — Chassis ground (–):
CHECK INPUT SIGNAL FROM TCM.
1) Shift and hold the select lever to up side.
2) Measure the voltage of the signal to TCM.
Connector & terminal
(B281) No. 15 (+) — Chassis ground (–):
CHECK GROUND CIRCUIT OF MANUAL
MODE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from manual
mode switch.
3) Measure the resistance of harness
between manual mode switch connector and
chassis ground.
Connector & terminal
(B116) No. 10 — Chassis ground:
CHECK MANUAL MODE SWITCH.
Measure the resistance between manual mode
switch terminals.
Connector & terminal
(B116) No. 10 — No. 11:
CHECK MANUAL MODE SWITCH.
1) Move the select lever to manual mode.
2) Measure the resistance between manual
mode switch terminals.
Connector & terminal
(B116) No. 10 — No. 11:
CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND MANUAL MODE
SWITCH.
1) Disconnect the connector from body integrated unit.
2) Measure the resistance of harness
between body integrated unit connector and
manual mode switch connector.
Connector & terminal
(B116) No. 11 — (B281) No. 25:
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 12.
No
Repair the short
circuit of harness
between manual
mode switch connector and TCM
connector.
Is the voltage more than 9 V?
Go to step 13.
Replace the body
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
Is the voltage less than 1 V?
Go to step 14.
Replace the body
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
Repair the open
circuit of harness
between manual
mode switch and
chassis ground.
Is the resistance less than 1 Ω? Go to step 15.
Is the resistance more than 1
MΩ?
Go to step 16.
Replace the guide
plate assembly.
Is the resistance less than 1 Ω? Go to step 17.
Replace the guide
plate assembly.
Is the resistance less than 1 Ω? Go to step 18.
Repair the open
circuit of harness
between the manual mode switch
connector and
body integrated
unit connector, or
poor contact of
connector.
5AT(diag)-127
asieps_tobira.book 128 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
18
19
20
21
22
23
24
Step
CHECK HARNESS BETWEEN BODY INTEGRATED UNIT AND MANUAL MODE
SWITCH.
1) Disconnect the steering roll switch connector.
2) Measure the resistance of harness
between manual mode switch connector and
chassis ground.
Connector & terminal
(B116) No. 11 — Chassis ground:
CHECK INPUT SIGNAL TO BODY INTEGRATED UNIT.
1) Connect all connectors.
2) Turn the ignition switch to ON. (engine
OFF)
3) Check the signal voltage for body integrated unit.
Connector & terminal
(B281) No. 25 (+) — Chassis ground (–):
CHECK INPUT SIGNAL TO BODY INTEGRATED UNIT.
1) Shift and hold the select lever to up side.
2) Check the signal voltage for body integrated unit.
Connector & terminal
(B281) No. 25 (+) — Chassis ground (–):
CHECK GROUND CIRCUIT OF STEERING
SHIFT SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from the steering
roll connector.
3) Measure the resistance of harness
between steering roll connector and chassis
ground.
Connector & terminal
(ST4) No. 3 — Chassis ground:
CHECK STEERING SHIFT SWITCH.
Measure the resistance between the ssteering
roll connector terminals.
Connector & terminal
(ST4) No. 2 — No. 3:
Check
Is the resistance more than 1
MΩ?
Yes
Go to step 19.
No
Repair the short
circuit of harness
between manual
mode switch connector and body
integrated unit
connector.
Is the voltage more than 9 V?
Go to step 20.
Replace the body
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
Is the voltage less than 1 V?
Go to step 21.
Replace the body
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
Is the resistance less than 1 Ω? Go to step 22.
Repair the open
circuit of harness
between steering
roll connector and
chassis ground.
Is the resistance more than 1
MΩ?
Replace the steering roll connector
or the steering
shift switch. Repair
the poor contact of
connector.
Replace the steering roll connector
or the steering
shift switch. Repair
the poor contact of
connector.
Go to step 23.
CHECK STEERING SHIFT SWITCH.
Is the resistance less than 1 Ω? Go to step 24.
1) Shift and hold the steering shift switch to
the + side.
2) Measure the resistance between steering
shift switch terminals.
Connector & terminal
(ST4) No. 2 — No. 3:
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 25.
BODY INTEGRATED UNIT AND STEERING
ROLL CONNECTOR.
1) Disconnect the connector from body integrated unit.
2) Measure the resistance of the harness
between body integrated unit connector and
steering roll connector.
Connector & terminal
(B281) No. 15 — (B68) No. 2:
5AT(diag)-128
Repair the open
circuit of harness
between the body
integrated unit
connector and
steering roll connector, or poor
contact of connector.
asieps_tobira.book 129 ページ
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Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
25
26
Step
Check
Yes
CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1 Ω? Go to step 26.
BODY INTEGRATED UNIT AND STEERING
ROLL CONNECTOR.
1) Disconnect the connector from body integrated unit.
2) Measure the resistance of the harness
between body integrated unit connector and
steering roll connector.
Connector & terminal
(B281) No. 25 — (B68) No. 6:
CHECK POOR CONTACT.
Is there poor contact in the
Repair the poor
manual mode switch circuit?
contact.
5AT(diag)-129
No
Repair the open
circuit of harness
between the body
integrated unit
connector and
steering roll connector, or poor
contact of connector.
Temporary poor
contact of the
manual mode
switch circuit connector or harness
asieps_tobira.book 130 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
B: CHECK SPORT SHIFT INDICATOR LIGHT
DIAGNOSIS:
Output signal circuit of SPORT shift indicator light is open or shorted.
TROUBLE SYMPTOM:
• SPORT shift indicator light does not illuminate or remains illuminated.
• SPORT shift indicator light display does not change.
WIRING DIAGRAM:
4
No.5
3
i10
6 7 8 9 10
1 2 3 4 5
11 12 13 14 15 16 17 18 19 20 21 22
SPORT
INDICATOR
IGNITION
SWITCH
COMBINATION
METER
i28
i10
21
22
7
SBF-6
1
1 2 3 4 5 6 7 8 9 10 11 12
8
A26
BATTERY
A27
2
MAIN SBF
A:
JOINT
CONNECTOR
i28
B30
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
B: B280
BODY INTEGRATED UNIT
A:
B20
i84
i84
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
B: B280
B54
E
B54
5 6
14 15
7
16
22
8
17
23
9
18
24
3
4
1 2 3 4
10 11 12 13
19 20 21
TCM
AT-03464
5AT(diag)-130
asieps_tobira.book 131 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
Step
CHECK BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Check
Yes
Is DTC of AT CAN communica- Perform the diagtion circuit displayed?
nosis according to
DTC.
Is DTC of AT CAN communica- Perform the diagtion circuit displayed?
nosis according to
DTC.
Is gear position 1 and “ ” dis- Go to step 4.
played?
2
CHECK TCM.
Check DTC of TCM.
3
CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Shift the select lever to manual mode side,
and then shift down the select lever.
6) Read the indicator.
CHECK TCM.
Is the gear position 2, and is
1) Shift up the select lever.
“ ” displayed?
2) Read the indicator.
4
5
CHECK BODY INTEGRATED UNIT.
Read the data of gear position using Subaru
Select Monitor.
Is SPORT shift gear position
2?
6
CHECK COMBINATION METER.
Is the SPORT shift indicator
OK?
5AT(diag)-131
Go to step 5.
No
Go to step 2.
Go to step 3.
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Go to step 6.
Check the body
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
Refer to “Symptom Replace the comRelated Diagnos- bination meter
assembly. <Ref. to
tic”. <Ref. to
5AT(diag)-134,
IDI-14, CombinaGeneral Diagnos- tion Meter.>
tic Table.>
asieps_tobira.book 132 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
C: CHECK BUZZER
DIAGNOSIS:
Output signal circuit of buzzer is open or shorted.
TROUBLE SYMPTOM:
Buzzer remains beeping.
WIRING DIAGRAM:
IGNITION
SWITCH
SBF-6
No.5
MAIN SBF
i10
4
3
BATTERY
6 7 8 9 10
1 2 3 4 5
11 12 13 14 15 16 17 18 19 20 21 22
i28
SPORT
SHIFT
BUZZER
E
COMBINATION
METER
1 2 3 4 5 6 7 8 9 10 11 12
i10
B: B280
A:
22
7
i84
i84
1 2
3 4
5 6
7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35
JOINT
CONNECTOR
i28
B: B280
1 2 3
4 5
6 7
8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
A26
8
21
A27
2
1
A:
BODY INTEGRATED
UNIT
B30
B20
B54
B54
5 6 7
14 15 16
22
8 9
17 18
23 24
3
4
1 2 3 4
10 11 12 13
19 20 21
TCM
AT-03465
5AT(diag)-132
asieps_tobira.book 133 ページ
２００５年９月２４日 土曜日 午後４時２７分
Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1
Step
CHECK BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
Check
Yes
Is DTC of CAN communication Perform the diagdisplayed?
nosis according to
DTC.
Is DTC of CAN communication Perform the diagdisplayed?
nosis according to
DTC.
Does the buzzer stop?
Replace the TCM.
<Ref. to 5AT-55,
Transmission Control Module
(TCM).>
Is the SPORT shift buzzer dis- Replace the body
play “ON”?
integrated unit.
<Ref. to SL-55,
Body Integrated
Unit.>
2
CHECK TCM.
Check DTC of TCM.
3
CHECK BUZZER STOP.
Disconnect the connector (B54).
4
CHECK BODY INTEGRATED UNIT.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Read the data of SPORT shift buzzer using
Subaru Select Monitor.
CHECK COMBINATION METER.
Is the buzzer OK?
5
5AT(diag)-133
Refer to “Symptom
Related Diagnostic”. <Ref. to
5AT(diag)-134,
General Diagnostic Table.>
No
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Replace the combination meter
assembly. <Ref. to
IDI-14, Combination Meter.>
asieps_tobira.book 134 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
16.General Diagnostic Table
A: INSPECTION
Symptoms
Shifting vehicle speed is low on “D” range.
Shifting vehicle speed is high on “D” range.
Excessive shock. (“N”→“D” range)
Excessive shift shock on 1st of “D” range → 2nd of “D”
range or “1st of manual mode” → “2nd of manual mode”.
Excessive shift shock on 2nd of “D” range → 3rd of “D”
range or “2nd of manual mode” → “3rd of manual mode”.
Excessive shift shock on 3rd of “D” range → 4th of “D”
range or “3rd of manual mode” → “4th of manual mode”.
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Problem parts
Vehicle speed sensor 1 and vehicle speed sensor 2
Accelerator pedal position sensor
Throttle position sensor
ATF temperature sensor
CAN communication signal
Vehicle speed sensor 1 and vehicle speed sensor 2
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Brake switch signal
Lateral G sensor
ATF temperature sensor
Engine idle speed
Engine speed signal
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
ATF temperature sensor
Oil pressure switch 1 and front brake solenoid valve
CAN communication signal
Fluid level and condition
TCM power supply
PVIGN relay
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Oil pressure switch 4 and direct clutch solenoid valve
CAN communication signal
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Oil pressure switch 5 and high & low reverse clutch solenoid valve
CAN communication signal
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Oil pressure switch 3 and input clutch solenoid valve
CAN communication signal
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
5AT(diag)-134
asieps_tobira.book 135 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Excessive shift shock on 4th of “D” range → 5th of “D”
range or “4th of manual mode” → “5th of manual mode”.
Excessive shock at kick down.
Excessive shock at shift up.
Excessive shock at lock up.
Excessive shock at engine brake.
Judder is occurred at lock up.
Noise at “R”, “N” and “D” range.
Hold at “D” range or 1st on manual mode.
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Problem parts
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Oil pressure switch 1 and front brake solenoid valve
CAN communication signal
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
CAN communication signal
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Engine speed signal
CAN communication signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
Engine speed signal
CAN communication signal
Turbine speed sensor 1 and turbine speed sensor 2
Lock up solenoid valve
Vehicle speed sensor 1 and vehicle speed sensor 2
Fluid level and condition
Accelerator pedal position sensor
Throttle position sensor
Control cable adjustment
CAN communication signal
Fluid level and condition
Line pressure
Low coast brake solenoid valve
Fluid level and condition
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Vehicle speed sensor 1 and vehicle speed sensor 2
Accelerator pedal position sensor
Throttle position sensor
Lock up solenoid valve
ATF temperature sensor 1 and 2
Fluid level and condition
Engine speed signal
ATF temperature sensor 1 and 2
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Direct clutch solenoid valve
Line pressure
Up switch signal
CAN communication signal
Accelerator pedal position sensor
5AT(diag)-135
asieps_tobira.book 136 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
Hold at “D” range or 2nd on manual mode.
Hold at “D” range or 3rd on manual mode.
Hold at “D” range or 4th on manual mode.
Hold at “D” range or 5th on manual mode.
Gear does not shift 1st of “D” range → 2nd of “D” range or
“1st of manual mode” → “2nd of manual mode”.
Gear does not shift 2nd of “D” range → 3rd of “D” range
or “2nd of manual mode” → “3rd of manual mode”.
Gear does not shift 3rd of “D” range → 4th of “D” range or
“3rd of manual mode” → “4th of manual mode”.
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Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Low coast brake solenoid valve
Line pressure
Up switch signal
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Line pressure
Up switch signal
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 3 and input clutch solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Oil pressure switch 5 and high & low reverse clutch solenoid valve
Low coast brake solenoid valve
Front brake solenoid valve
Line pressure
Up switch signal
Down switch signal
CAN communication signal
Accelerator pedal position sensor
TCM power supply
PVIGN relay
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 1 and front brake solenoid valve
Line pressure
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Up switch
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 5 and high & low reverse clutch solenoid valve
Line pressure
Up switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 3 and input clutch solenoid valve
Oil pressure switch 1 and front brake solenoid valve
Line pressure
Up switch signal
CAN communication signal
Accelerator pedal position sensor
5AT(diag)-136
asieps_tobira.book 137 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
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•
Gear does not shift 4th of “D” range → 5th of “D” range or •
“4th of manual mode” → “5th of manual mode”.
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Gear does not shift down to 4th on “D” range or manual
•
mode.
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Gear does not shift down to 3rd on “D” range or manual
•
mode.
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Gear does not shift down to 2nd on “D” range or manual
•
mode.
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Gear does not shift down to 1st on “D” range or manual
•
mode.
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No lock-up occurs.
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No shift shock occurred when shifting 1st of “D” range → •
2nd of “D” range or “1st of manual mode” → “2nd of man- •
ual mode”. Or clutch slipping occurred.
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•
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 1 and front brake solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Turbine speed sensor 1 and turbine speed sensor 2
ATF temperature sensor
Line pressure
Up switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 1 and front brake solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 3 and input clutch solenoid valve
Oil pressure switch 1 and front brake solenoid valve
Line pressure
Down switch signal
CAN communication signal
Accelerator pedal position sensor
TCM power supply
PVIGN relay
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 5 and high & low reverse clutch solenoid
Line pressure
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Down switch signal
CAN communication signal
Accelerator pedal position sensor
Fluid level and condition
Line pressure
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Lock up solenoid valve
CAN communication signal
ATF temperature sensor 1 and 2
Accelerator pedal position sensor
Brake switch signal
Range signal
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
CAN communication signal
5AT(diag)-137
asieps_tobira.book 138 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
No shift shock occurred when shifting 2nd of “D” range →
3rd of “D” range or “2nd of manual mode” →3rd of manual mode”. Or clutch slipping occurred.
No shift shock occurred when shifting 3rd of “D” range →
4th of “D” range or “3rd of manual mode” → “4th of manual mode”. Or clutch slipping occurred.
No shift shock occurred when shifting 4th of “D” range →
5th of “D” range or “4th of manual mode” → “5th of manual mode”. Or clutch slipping occurred.
Engine skids when shifting 5th of “D” range → 4th of “D”
range or “5th of manual mode” → “4th of manual mode”.
Or slipping occurred.
Engine skids when shifting 4th of “D” range → 3rd of “D”
range or “4th of manual mode” → “3rd of manual mode”.
Or slipping occurred.
Engine skids when shifting 3rd of “D” range → 2nd of “D”
range or “3rd of manual mode” → “2nd of manual mode”.
Or slipping occurred.
Engine skids when shifting 2nd of “D” range → 1st of “D”
range or “2nd of manual mode” → “1st of manual mode”.
Or slipping occurred.
Engine brake does not function at 5th → 4th of manual
mode.
Engine brake does not function at 4th → 3rd of manual
mode.
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Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 5 and high & low reverse clutch solenoid valve
Line pressure
CAN communication signal
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 3 and input clutch solenoid valve
Oil pressure switch 1 and front brake solenoid valve
Line pressure
CAN communication signal
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 1 and front brake solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 1 and front brake solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 3 and input clutch solenoid valve
Oil pressure switch 1 and front brake solenoid valve
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 5 and high & low reverse clutch solenoid valve
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Fluid level and condition
Vehicle speed sensor 1 and vehicle speed sensor 2
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Inhibitor switch
Fluid level and condition
Control cable adjustment
Manual mode switch
Oil pressure switch 1
Down switch signal
Inhibitor switch
Fluid level and condition
Control cable adjustment
Manual mode switch
Oil pressure switch 1 and oil pressure switch 3
Down switch signal
5AT(diag)-138
asieps_tobira.book 139 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
Engine brake does not function at 3rd → 2nd of manual
mode.
Engine brake does not function at 2nd → 1st of manual
mode.
Excessive acceleration failure on “D” range.
Excessive acceleration failure in “R” range.
Engine skids when start driving (1st) the vehicle. Or slipping occurred.
Engine skids when driving at 2nd. Or slipping occurred.
Engine skids when driving at 3rd. Or slipping occurred.
Engine skids when driving at 4th. Or slipping occurred.
Engine skids when driving at 5th. Or slipping occurred.
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Inhibitor switch
Fluid level and condition
Control cable adjustment
Manual mode switch
Oil pressure switch 5
Low coast brake solenoid valve
Inhibitor switch
Fluid level and condition
Control cable adjustment
Manual mode switch
Oil pressure switch 4
Low coast brake solenoid valve
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Inhibitor switch
Control cable adjustment
Vehicle speed sensor 1, 2
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
Oil pressure switch 5 and high & low reverse clutch solenoid valve
CAN communication signal
Inhibitor switch
Control cable adjustment
Vehicle speed sensor 1, 2
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Oil pressure switch 4 and direct clutch solenoid valve
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Oil pressure switch 5 and high & low reverse clutch solenoid valve
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Oil pressure switch 3 and input clutch solenoid valve
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Oil pressure switch 1 and front brake solenoid valve
5AT(diag)-139
asieps_tobira.book 140 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
Slip at lock up.
Maximum vehicle speed is low.
There is completely no creep.
Excessive large creep.
Vehicle cannot be parking condition on “P” range. Parking
condition is not released though shifting to other ranges.
Vehicle can drive on “P” range.
Vehicle can drive on “N” range.
Vehicle cannot drive at any range.
Vehicle cannot drive on “D” range.
Vehicle cannot drive on “R” range.
Engine cannot start on “P” or “N” range
Engine start other than “N” or “P” range
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Fluid level and condition
Line pressure
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Lock up solenoid valve
CAN communication signal
Fluid level and condition
Line pressure
Accelerator pedal position sensor
Throttle position sensor
CAN communication signal
Direct clutch solenoid valve
Vehicle speed sensor 1 and 2
Fluid level and condition
Engine speed signal
CAN communication signal
Oil pressure switch 4 and direct clutch solenoid valve
Line pressure
Engine speed signal
CAN communication signal
Oil pressure switch 4
Inhibitor switch
Control cable adjustment
Inhibitor switch
Fluid level and condition
Control cable adjustment
Line pressure
Inhibitor switch
Fluid level and condition
Control cable adjustment
Line pressure
Fluid level and condition
Line pressure
Inhibitor switch
Control cable adjustment
Loosing or damaging of propeller shaft.
Loosing or damaging of drive shaft.
Fluid level and condition
Line pressure
Inhibitor switch
Control cable adjustment
Loosing or damaging of propeller shaft.
Loosing or damaging of drive shaft.
Fluid level and condition
Line pressure
Inhibitor switch
Control cable adjustment
Loosing or damaging of propeller shaft.
Loosing or damaging of drive shaft.
Key switch and starter
Control cable adjustment
Inhibitor switch
CAN communication line
TCM
Key switch and starter
Control cable adjustment
Inhibitor switch
TCM
5AT(diag)-140
asieps_tobira.book 141 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Symptoms
Problem parts
Engine stalls.
Engine stalls when shifting to “N” → “D” and “R” range.
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Fluid level and condition
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Lock up solenoid valve
Line pressure
Fluid level and condition
Engine speed signal
Turbine speed sensor 1 and turbine speed sensor 2
Lock up solenoid valve
Line pressure
5AT(diag)-141
asieps_tobira.book 142 ページ
２００５年９月２４日 土曜日 午後４時２７分
General Diagnostic Table
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
5AT(diag)-142