05−1692
DIAGNOSTICS
−
POWER DOOR LOCK CONTROL SYSTEM
05AFX−01
DOUBLE LOCK FUNCTION DOES NOT OPERATE PROPERLY
CIRCUIT DESCRIPTION
All the doors except the back door have the double locking system. This system is set or unset by the door
opening relay assy (double lock control relay). When the door opening relay assy receives a request signal
(See page 73−1) that the double locking system is set or unset from the wireless transmitter, it drives the
double lock motor in each door lock according to the condition of all the double lock position switches, this
causing the double locking system to set or unset.
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
05−1693
−
DIAGNOSTICS
POWER DOOR LOCK CONTROL SYSTEM
WIRING DIAGRAM
D7
Door Opening Relay Assy
(Double Lock Control Relay)
Instrument Panel Junction Block Assy
9
IE
4
IL
G−W
Engine Room Relay Block Assy
ECU−B
1
2
W−L
2
2
2
W−R
2
G−W
1
W−R 7
+B
CPUB
Junction Block No.1
4
1D
4
1A
2
SHORT PIN
1
26
IJ
4
IB
B
W−R
DR/LCK
2
2
1
Battery
D20
Front Door w/ Motor Lock Assy RH
DLSR
W−B
J27
J/C
4
10
E
B
B
UNDL
W−B
W−B
B
J28
J/C
B
4
J24
J/C
W−B
IA1
A
5
E
DLSR
DL
W−B
A
W−B
4
R−L
3
B−R
UNDL
A
G
2
R−L
1
B−R
3
BB1
11
IO1
9
IO1
10
IO1
11
IA1
9
IA1
10
IA1
D22
Rear Door w/ Motor Lock Assy LH
6
9 G−B
DLSR
BA1
4
4 G−R
3
BA1
DL
10
BA1
E
5
W−B
3 L−W
BA1
UNDL
DLSR
W−B
6
6
E
W−B
DL
UNDL
A
J12
J/C
G−Y
5
L−R
L−R
3
L−W
L−W
4
G
6
5
G−R
2
G−R
1
L−W
W−B
6
BB1
4
BB1
5
BB1
DLPD
ACTS
ACTR
L−R
L−R
DLPP
L−W
L−W
L−W
L−R
12
G−B
L−R B
B
A
DLPL
J23
J/C
L−W A
B
D23
Rear Door w/ Motor Lock Assy RH
IN
A
G−Y
D19
Front Door w/ Motor Lock Assy LH
IO1
W−B
DL
9
A
G−R 11
DLPR
L−R
L−W
14
GND
IJ
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
B64717
05−1694
DIAGNOSTICS
−
POWER DOOR LOCK CONTROL SYSTEM
INSPECTION PROCEDURE
1
(a)
INSPECT WIRELESS DOOR LOCK OPERATION
Check that the doors can be normally locked and unlocked by the wireless operation.
NG
GO TO WIRELESS DOOR CONTROL SYSTEM
(See page 05−1699)
OK
2
(a)
INSPECT FUSES
Inspect the ECU−B fuse and R/LCK fuse. (See page 68−1)
NG
OK
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
REPLACE FUSES
05−1695
DIAGNOSTICS
3
−
POWER DOOR LOCK CONTROL SYSTEM
INSPECT DOOR LOCK ASSY (EXCEPT BACK DOOR LOCK)
(a)
Front Door w/Motor Lock Assy LH:
Inspect operation of the double lock motor.
(1) Apply battery voltage and set the door lock motor to
LOCK.
Standard:
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 4
Battery negative (−) ® Terminal 3
Lock
Battery positive (+) ® Terminal 3
Battery negative (−) ® Terminal 4
Unlock
(2)
Lock
Apply battery voltage and inspect operation of the
double lock motor.
Standard:
Unlock
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 2
Battery negative (−) ® Terminal 1
Double locking system is Set
Battery positive (+) ® Terminal 1
Battery negative (−) ® Terminal 2
Double locking system is Unset
(3)
B64707
Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.
(4) Inspect the double lock position switch continuity.
Standard:
Terminal No.
5Û6
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
Double Lock Position
Specified Condition
SET
Continuity
UNSET
No continuity
05−1696
−
DIAGNOSTICS
(b)
POWER DOOR LOCK CONTROL SYSTEM
Front Door w/Motor Lock Assy RH:
Inspect operation of the double lock motor.
(1) Apply battery voltage and set the door lock motor to
LOCK.
Standard:
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 2
Battery negative (−) ® Terminal 1
Lock
Battery positive (+) ® Terminal 1
Battery negative (−) ® Terminal 2
Unlock
(2)
Apply battery voltage and inspect operation of the
double lock motor.
Standard:
Unlock
Lock
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 4
Battery negative (−) ® Terminal 3
Double locking system is Set
Battery positive (+) ® Terminal 3
Battery negative (−) ® Terminal 4
Double locking system is Unset
(3)
B64708
Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.
(4) Inspect the double lock position switch continuity.
Standard:
Terminal No.
9 Û 10
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
Double Lock Position
Specified Condition
SET
Continuity
UNSET
No continuity
05−1697
DIAGNOSTICS
(c)
−
POWER DOOR LOCK CONTROL SYSTEM
Rear Door w/Motor Lock Assy LH:
Inspect operation of the double lock motor.
(1) Apply battery voltage and set the door lock motor to
LOCK.
Standard:
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 2
Battery negative (−) ® Terminal 1
Lock
Battery positive (+) ® Terminal 1
Battery negative (−) ® Terminal 2
Unlock
(2)
Apply battery voltage and inspect operation of the
double lock motor.
Standard:
Lock
Unlock
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 4
Battery negative (−) ® Terminal 3
Double locking system is Set
Battery positive (+) ® Terminal 3
Battery negative (−) ® Terminal 4
Double locking system is Unset
(3)
B64705
Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.
(4) Inspect the double lock position switch continuity.
Standard:
Terminal No.
9 Û 10
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
Double Lock Position
Specified Condition
SET
Continuity
UNSET
No continuity
05−1698
−
DIAGNOSTICS
(d)
POWER DOOR LOCK CONTROL SYSTEM
Rear Door w/Motor Lock Assy RH:
Inspect operation of the double lock motor.
(1) Apply battery voltage and set the door lock motor is
LOCK.
Standard:
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 4
Battery negative (−) ® Terminal 3
Lock
Battery positive (+) ® Terminal 3
Battery negative (−) ® Terminal 4
Unlock
(2)
Apply battery voltage and inspect operation of the
double lock motor.
Standard:
Unlock
Lock
Measurement Condition
Specified Condition
Battery positive (+) ® Terminal 2
Battery negative (−) ® Terminal 1
Double locking system is Set
Battery positive (+) ® Terminal 1
Battery negative (−) ® Terminal 2
Double locking system is Unset
(3)
B64706
Check that the doors cannot be unlocked by operating the control cable while the double locking system is set.
(4) Inspect the double lock position switch continuity.
Standard:
Terminal No.
5Û6
NG
Double Lock Position
Continuity
UNSET
No continuity
REPLACE DOOR LOCK ASSY
OK
REPLACE DOOR OPENING RELAY ASSY (DOUBLE LOCK CONTROL RELAY)
LAND CRUISER PRADO REPAIR MANUAL (RM990E)
Specified Condition
SET