1989
WIRING DIAGRAMS
R-V, P TRUCK
MODELS
When reference is made in this manual to a brand name, number, or specific tool, an equivalent product may
be used in place of the recommended item
All information, illustrations, and specifications contained in this manual are based on the latest product
information available at the time of publication approval. The right is reserved to make changes at any time
without notice.
No part of this publication may be reproduced, stored in any retrieval system or transmitted, in any form or by
any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise, without the
prior written permission of the GMC Truck Division of General Motors Corp. This includes all text, illustrations,
tables and charts.
X-8940
©1988 General Motors Corporation
AH rights reserved
August, 1988
Printed in U.S.A.
WIRING DIAGRAMS 2
DESCRIPTION
WIRING DIAGRAMS
All diagrams in this manual are based on the latest product information at the time of publication approval. The right is
reserved to make changes at any time without notice.
SUBJECT
Description
Tracing Circuits
Baste Electric Circuits
Circuit Diagnosis
Abbreviation List
Diagnostic
Wire Size Conversion Table
On-Vehicle Service
Circuit
Maintenance
Weather Pack Connectors
Metri-Pack Connectors
Wiring Repair
Special Tools
PAGE
Tools
and
VEHICLE
R/V
P :Chassis
Repair
2
2
2
8
7
11
11
11
11
12
12
14
15
SECTION
Models
A-1
B-1
Figure 1—Wire Coding
• The diagrams are to be traced from the source of
electricity (the battery positive post) to ground. The
ground may be a chassis ground on a certain component (such as an alternator or a starter), or a wire
from a component to a chassis or frame ground
(such as used on the electronic control module and
instrument panei). All grounds are connected to the
negative battery post through body and/or angina
ground wires and straps.
• Many times the source of the electricity is shown as
the ignition switch or the fuse block. This is done to
eliminate the confusion that would occur if the entire
power distribution was shown in each circuit. For a
detailed outline of the power to the ignition switch or
the fuse block, refer to the power distribution circuit.
• The ground portion of the circuit (usually circuit 150
or 151) may be shown entirely, or it may refer to the
ground distribution circuit in order to avoid confusion of listing ail the grounds in one splice on a single page.
• For ease of diagnosis, ali splices and grounds are
identified by number, and all the wires on a common
splice or ground are identified by circuit number,
size (in mm) and color. Each component or circuit
common to s spliced wire is called out by the page
number of that circuit. This will help identify and diagnose multiple electrical problems that could occur
in a truck.
• All connectors are shown with their part numbers to
save time when ordering these parts.
• Switches are shown in their at rest positions, unless
otherwise marked.
TRACING CIRCUITS
Figures 1 through 3 are examples of how the wiring
diagrams are laid out., and will be referred to, throughout
this description.
In order to trace a circuit on these diagrams, start from
the source, the battery. In figure 2, the battery positive
circuit is a 19.0 mm black wire. This wire runs from the
battery to the starter motor, and supplies power to the
starter motor post.
Once you have determined the source of power to your
component, from the Power Distribution Circuit (figure 2),
then refer to the individual circuit you are working on for
more detail about that circuit. (Figure 3 shows the starting
circuit).
In figure 3, the starter motor circuit is shown. This circuit
shows the battery feed coming from the Power
Distribution page. The cable comes from the battery to
the start©? positive post. At the starter post, other circuits
such as the generator, ignition switch, and electronic
control module are fed.
When the ignition switch is in the start position, power
flows from circuit #2 through the switch, to circuit #6.
Circuit #6 goes through the clutch switch with an
automatic transmission. At the clutch switch the circuit is
opened, unless the dutch is depressed.
At the solenoid the current flowing from circuit #6
closes the soiertoid, allowing current to flow from the
battery at circuit #1 to the starter motor. The current
flowing to the starter motor, causes the starter motor to
spin.
BASIC ELECTRICAL CIRCUITS
An electrical circuit starts from a supply of electricity
back to a load and then conducts the electricity back to
the supply of electricity. There should be a device to open
and close the circuit, and a protective device to open the
circuit in case too much current is drawn into the circuit by
an overload condition. Electrical circuits can be set up as
series circuits, parallel circuits or series/parallel' circuits.
The circuits in trucks are usually parallel circuits.
WIRING DIAGRAMS 5
WIRING DIAGRAMS 6
path. For example the switch controlling the headlights is
at the power end of the circuit while the door switch
controlling the domelight completes the ground path.
Relays are remotely controlled switches. They are used
in high current circuits and in circuits controlled by
sensors.
Relays are designed so that a small current circuit wi!3
he able to control a large current circuit.
CIRCUIT BREAKERS (Figure 7)
Circuit breakers are another form of circuit protector.
There are two types of circuit breakers; automatic reset
and remote reset.
The automatic reset breaker opens when excess
current heats a bimetallic strip, causing the strip to bend
and open a set of contacts. Then the strip cools and
closes the contacts. So the circuit breaker opens and
closes until the excess current condition is corrected or
the circuit is disconnected from the power supply.
The remote reset circuit breaker has a heating wire
wound around the bimetallic strip. When an excess
current happens, the strip heats, bends, and opens the
contacts. Then a small current flows through the heating
wire, keeping the strip hot and the contacts open. This
type of breaker will stay open until either the power supply
is disconnected from the circuit or the breaker is removed
from the circuit. Then the breaker can cool and reset.
Figure 4—Basic Circuits
SERIES CIRCUITS (Figure 4 and 5)
In a series circuit, the electrical devices are connected
together to form one current path to and from the power
supply. In a series circuit the same current flows through
all of the devices.
PARALLEL CIRCUITS (Figure 5)
In a parallel circuit, the electrical devices are connected
to form more than one current path to and from the power
supply. In a parallel circuit the supply voltage is the same
in each current path.
Figure 5—Series/Parallel Circuits
FUSIBLE LINK
A fusible link is a section of wire that is usually four
gage sizes smaller than the circuit it protects. A special
insulation is used that swells when heated by the wire.
Fusible links are usually found in the engine compartment
harnesses. The function of the fusible link is to melt open
when an overload occurs, thus preventing any damage to
the circuit.
CIRCUIT DIAGNOSIS
Figure 7—Circuit Controllers
FUSES (Figure 8)
The most common protector in the vehicle circuit is a
fuse. A fuse consists of a fine wire or strip of metal inside
a glass tube or plastic housing. The strip melts and
interrupts the flow of current in the circuit when there Is an
overload caused by an unwanted short or ground. The
fuse is designed to melt before the wiring or electrical
components in a circuit can be damaged. Naturally, the
cause must be located and corrected before the fuse is
replaced or the new fuse will also blow.
SERIES/PARALLEL CIRCUIT (Figure 5)
A series/parallel circuit consists of a single current path
circuit and a circuit with more than one current path to
and from" the voltage supply.
CIRCUIT COMPONENTS (Figure 6)
The usual circuit path starts at the power supply which
is the battery/generator system. Next in the circuits is the
circuit protection component which cars he a fusible link, a
fuse, or a circuit breaker. Then the circuit goes to the
circuit controller which can be a switch or a relay. From
the circuit controller the circuit goes into the circuit load.
The circuit load can be one light or many lights in parallel,
an electric motor or a solenoid. After the electricity has
passed through the load it must return to the power
supply via the ground path. The ground path can be a
wire in the harness or it could be through the load
housing into the body or frame, thus returning the
electricity to the power supply. The body and frame are
connected by flexible ground straps.
CIRCUIT LOADS ( F i g u r e 7)
Circuit loads are the components that use most of the
energy in circuit. The energy converts to motion, light, or
heat, lights, motors, and engine heaters are the most
common loads in circuits.
Since different circuits handle different amounts of
current, fuses of various ratings are used. Fuses are rated
in amperes. Be sure to replace a blown fuse with a fuse of
the connecting rating.
Figure 6--Circuit Components
CIRCUIT CONTROLLERS (Figure 7)
Circuit controllers consist of switches or relays.
Switches are usually operated by a mechanical means
such as a hand or lever. Switches are usually at the
beginning of a circuit but can be used to control a ground
A clear understanding of the circuit and a wiring
diagram are needed for effective diagnosis. Use a logical
sequence of testing to find the trouble. Use the diagnostic
tools. After the trouble is fixed, make sure the circuit
works correctly.
CIRCUIT MALFUNCTIONS
There are three electrical conditions that can cause a
nonworking circuit; an "Open Circuit", a "Short Circuit",
or a "Grounded Circuit"
OPEN CIRCUIT (Figure 8)
An open circuit occurs whenever there is a break in the
circuit. The break can be corrosion at the connector, a
wire broken off in a device, or a wire that burned open
from too much current.
SHORT CIRCUIT (Figure 9}
A short circuit happens when the current bypasses part
of the normal circuit. This bypassing is usually caused by
wires touching, salt water in or on a device such as a
switch or a connector or solder melting and bridging
conductors in a device.
WIRING DIAGRAMS 7
GROUNDED CIRCUIT(Figure 10)
A ground circuit is like a short circuit but the current
flows directly into a ground circuit that is not part of the
original circuit. This may be caused by a wire rubbing
against the f r a m e or body. Sometimes a wire will break
and fall against metal that is connected electrically to the
ground side of the power supply. A grounded circuit may
also be caused by deposits of oil, dirt and moisture
around connections or terminals, which provide a good
path to ground.
WIRING DIAGRAMS 8
EFE—Early Fuel Evaporation
EGR—Exhaust Gas Recirculation
ELEC—Electric
ELEC—Electronic
CNTRL—Control
MOD—Module
ENG-—Engine
EPR—Exhaust Pressure Regulator
ESC—Electronic Spark Control
EST—Electronic Spark Timing
EVRV—Electronic Vacuum Regulator Valve
EXC---Except
F-PUMP—Fuel Pump
FLASH—Flasher
FRT—Front
4WD—Four Wheel Drive
Figure 8- -Open Circuit
GEN—Generator
GRA—Gray
GRD—Ground
GRN—Green
Figure 10—Grounded Circuit
Figure 9—Short Circuit
ABBREVIATION LIST
The following is a list of abbreviations used in the wiring
diagrams. The abbreviations have been developed in
such a way that their meaning should be clear.
Use this page as a reference to determine the meaning
of an abbreviation if necessary.
A --- Ampere
A/C--- Air Conditioner
ACC --Accessory
A.I.R.---Air Injection Reaction
AIR/COND—Air Conditioner
ALDL—Assembly Line Diagnostic link
ALT—Alternator
AMP—Ampere
ANTI—Anticipate
ASM—Assembly
ASSY- -Assembly
ALIO—Audio
AUTO—-Automatic
AUX—Auxiliary
BAT—Battery
BATT— Battery
B I--LEV—B i-Level
BLK—Biack
BUT- -Belt
BLU-Blue
BOT--Bottom
BRK—Brake
BRN--Brown
BU---Backup
BUZZ—Buzzer
CIR/BRK—Circuit Breaker
CIRC- -Circuit
CLSTR- -Cluster
CNTL---Control
COMP----Compartment
COMP—Compressor
CONN—Connector
PONV— Convenience
CTSY—Courtesy
CYL—-Cylinder
DK—Dark
DIAG—Diagnostic
DIM—Dimmer
DIR—Directional
DISC—Discrete
DIST—Distributor
DIV— Diverter
DM—Dome
DR—Door
ECM—Electronic Control Module
HAND—Handling
HAZ—Hazard
HD—Heavy Duty
HD LP—Headlamp
HEI—High Energy Ignition
HI—High
HTR—Heater
IAC-Idle Air Control
IGN—Ignition
IL.LUM—Illumination
I/P—Instrument .Panel
INC—Increased
IND—Indicator
INJ —Injector
INST PNL Instrument Pane!
INTER—Interior
LD—Light Duty
LH—Left Hand
LO—Low
LP—Lamp
LPS- -Lamps
LT~~Light
LTR-~Ughter
M—Motor
MAN—Manual
MAP—Manifold Absolute Pressure
MAX---Maximum
MED—Medium
MRKR—Marker
MULT—Multiple
NAT--Natural
NEUT—Neutral
NO—Normally Open
NC—Normaiiy Closed
ORN--Orange
PK—Park
PLR—Puller
PNKf-PInk
PNL—Panel
PPL—Purple
PRESS—Pressure
WR—Power
RCVR—Receiver
REF—Reference
RESIST---Resistance
RM—Right Hand
RPO—Regular Production Option
SEN---Sensor
SEND—Sender
SIG—Signal
SIL—Silver
SKT—-Socket
SOL—Solenoid
SPEEDO—Speedometer
STR—Stripe
SW—Switch
TACH-—-Tachometer
TBI—Throttle Body Injection
TCC-—Torque Converter Clutch
TEMP--Temperature
T/L-—Tail Lamp
TRANS- -Transmission
TYP-- Typical
V—Volt
VAC—Vacuum
VLV—Valve
VSS—Vehicie Speed Sensor
W/—With
W/O—Wttmut
W/S—Windshield
W WASHER—Window Washer
WOO—Window
WHT-White
WRG—-Wiring
YEL—Yellow
WIRING DIAGRAMS 10
WIRING DIAGRAMS 9
DIAGNOSTIC TOOLS
30. Power Source
31 Circuit Breaker
32. Switch (Closed)
33 Ammeter
34. Load
B-06086
40.
41.
42.
43.
44.
Power Source
Circuit Breaker
Switch (Open)
Ohmmeter
Load
50.
51.
52.
53.
54.
UNPOWERED TEST LIGHT (Figure 12)
This tool consists of a 12 volt light with leads. The ends
of the leads usually have alligator clamps, but various
kinds of probes, terminal spades, and special connectors
are used also.
NOTICE: The followmg instruments: Ammeter,
Voltmeter, a n d Ohmmeter,
each
have a
particular application
for
trouble
shooting
electrical
circuits.
This test light is used mainly for testing components
that are disconnected from the vehicle power supply. The
power test light is also useful for testing suspected high
resistance points in a circuit such as connectors and
ground circuits that are corroded or loose.
When using a ammeter or voltmeter, and the
value being tested is unknown always use the
highest scale first and work downward to a
midscale reading whenever possible. This will
avoid damage to the Instrument.
Never use an ohmmeter in a power circuit, or
as a substitute for a vohmeter or ammeter as
damage to the instrument will result.
AMMETER (Figure 12 and 15)
Disconnect the circuit from the power source before
connecting the ammeter. The ammeter measures the
amount of electrical current, amperes, moving through a
conductor. The ammeter must be placed in series with the
circuit being tested. Be sure that the ammeter's positive
terminal is connected to the positive (battery) side of the
circuit and is negative terminal to the negative (ground)
side of the circuit.
JUMPER
The jumper is usually a long wire with alligator clamps.
A version of the jumper has a fuse holder in it with a 10
Amp fuse. This will prevent damaging the circuit if the
jumper is connected in the wrong way.
OHMMETER (Figure 13 and 15)
The ohmmeter is an instrument designed to indicate
resistance in ohms, it is used to test the condition of a unit
disconnected from the circuit.
The jumper is used to locals opens in a circuit. One
end of the jumper is attached to a power source and then
the other end is attached to the load in the circuit, i.e.;
light, motor. If the load works, try "jumping" to circuit
points that are progressively closer to the power supply.
When the circuit load stops working, the open has been
located.
Ohmmeter Calibration
When the ohmmeter probes are connected together, a
circuit is completed causing the meter needle to deflect
The needle should read ZERO ohms, if it does not, rotate
the CAL or ADJ knob to ZERO the needle.
The jumper is also used to test components in the
circuit such as connectors, switches, and suspected high
resistance points.
B-06155
A = 3 Volts
B = 7 Volts
C = 13 Volts
Figure 14—Voltmeter
Figure 13 --Ohmmeter
POWERED TEST LIGHT (Figure 11)
This light is a pencil shaped unit with a self contained
battery, a 1 5 volt light bulb, a sharp probe and a ground
lead fitted with an alligator clip.
VOLTMETER SCALE: 0 Volts through 15 Volts
B-06087
Figure 12—Ammeter
The unpowered test light is used on an open circuit.
One lead of the test light is grounded and the other lead is
moved around the circuit to find the open. Depending on
the physical layout of the circuit, sometimes it will be
easier to start at the power supply and other times it is
easier to start at the Circuit load or ground circuit.
Power Source
Circuit Breaker
Switch (Closed)
Voltmeter
Load
When the probes are held apart, the needle moves to
the maximum (infinite) resistance side of the scale.
The meter is now ready for use. Refer to figure 14 for a
typical application of the ohmmeter.
VOLTMETER (Figures 14 and 15)
The voltmeter (properly observed) will give the
technician more information than the ammeter, ohmmeter
and test light combined, its application for troubleshooting
here is to measure the electrical pressure (voltage) drop in
a resistance circuit (figure 14).
Io use a voltmeter for troubleshooting an electrical
problem, connect it in parallel with the existing circuit
(figure 10). If the voltmeter is connected in series with the
circuit being tested, the nature of the circuit would be
changed and the reading would have no particular value
or use. Connect the meter terminals according to polarity
as shown in figure 14.
The dash mounted voltmeter (in the vehicle) should
also be observed for monitoring proper operation of the
generator battery cranking motor, and cranking circuit. In
this application, battery voltage drop can be monitored
while the engine is cranking; and after the engine is
running, generator output voltage cars be monitored. This
can be a valuable first step prior to diagosing other
electrical problems.
WIRING HARNESS AND WIRES
Every wire is a specific size with colored or striped
insulation that is indicated on the wiring diagrams.
Insulation colors help to trace circuits and to make proper
connections. Abbreviations and symbols used for
indicating wire insulation colors and patterns are as
follows:
BIK
Black
BLU
Blue
BRN
Brown
PPL
Purple
CHK
Check
TR
Tracer
CR
Cross
YEL
.Yellow
GRN
Green
//
Parallel
NAT
Natura!
WHT
White
SGL
Single
STR
Stripe
Orange
PNK
Pink
ORN
GR
Gray
DK
Dark
Some wires are grouped and taped together or
encased in a split plastic casing. This grouping of wires is
called a harness. For some purposes, it is more practical
to use a single wire protected by a braided tubing called a
loom.
AMMETER SCALE: 0 Amperes through 10 Amperes
E = 1 Ampere
F = 1.8 Amperes
G = 9 Amperes
OHMMETER SCALE: 0 Ohms through Infinity
H = 5 Ohms
I = 36 O h m s
J = 115 O h m s
K = 350 O h m s
Figure 1 5 - M e t e r Scales
WIRING DIAGRAMS 11
Wiring harnesses are joined by using a multiple plug
and receptacle connector block, or a terminal post
chassis junction block. In the instrument panel area
plastic insulated blade-type connectors and screw-type
terminals are used.
Each harness or wire must be held securely in place by
clips or other holding devices to prevent chafing of the
WIRE SIZE
CONVERSION TABLE
METRIC
SIZE
(mm)2
0.22
0.35
0.5
0.8
1.0
2.0
3.0
5.0
8.0
13.0
19.0
32.0
40.0
50.0
62.0
insulation.
WIRE SIZE
Wire size in a circuit is determined by the amount of
current, the length of the circuit and the voltage drop
allowed. Wire size is specified using the metric gage. The
metric gage describes the wire size directly in cross
section area measured in square millimeters.
24
22
20
18
16
14
12
10
8
6
4
2
1
0
00
MAINTENANCE AND REPAIR
All electrical connections must be kept clean and tight.
Loose or corroded connections may cause a discharged
battery, difficult starting, dim lights, and possible damage
to the generator and regulator. Wires must bo replaced if
insulation becomes burned, cracked, or deteriorated.
To splice a wire or repair one that is frayed or broken
always use rosin flux solder to bond the splice and
insulating tape to cover all splices or bare wires.
WRING CONNECTOR TERMINAL
REPLACEMENT (BLADE TYPE)
Figure 17—Resetting the Lock Tang
METRl-PACK CONNECTORS
WEATHER-PACK CONNECTORS
The Metri-Pack connectors use a pull-to-seat type
terminal, as shown in figure 19. The special tool required
to remove the terminal is J-35689-A terminal remover. If
removal is attempted with an ordinary pick, there is a
good chance that the terminal will be bent or deformed.
Refer to figure 19.
Special connectors known as Weather-Pack connectors
(figure 19) require a special tool J-28742 for servicing.
This special tool is required to remove the pin and sleeve
terminals. If removal is attempted with an ordinary pick,
there is a good chance that the terminal will be bent or
deformed. Unlike standard blade-type terminals, these
terminals cannot be straightened once they are bent.
Mate sure that the connectors are property seated and
all of the sealing rings in place when connecting the
leads. The hinge-type flap provides a back-up, or
secondary locking feature for terminals. They are used to
improve the connector reliability by retaining the terminals
if the small terminal lock tangs are not positioned
properly.
Molded-on-connectors require complete replacement of
the connection. This means splicing a new connector
assembly into the harness. Environmental connections
cannot be replaced with standard c o n n e c t i o n s .
Instructions are provided with the Weather-Pack
connector and terminal packages.
CIRCUIT MAINTENANCE
AND REPAIR
Never replace a wire with one of a. smaller size or
replace a fusible link with a were of a larger size.
With the low current and voltage levels found in some
circuits, it is important that the best possible bond at all
wire splices be made by soldering the splices.
Use care when probing the connections or replacing
terminals in them, it is possible to short between opposite
terminals. If this happens to the wrong terminal part, it is
possible that d a m a g e may be d o n e to c e r t a i n
components. Always use jumper wires between
connectors for circuit checking. Never probe through the
Weather-Pack seals.
When diagnosing for possible open circuits, it is often
difficult to locate them by sight because oxidation or
terminal misalignment are hidden by the connectors.
Merely wiggling a connector on a sensor or in the wiring
harness may correct the open circuit condition. This
should always be considered when an open circuit is
indicated while troubleshooting. Intermittent problems
may also be caused by oxidized or loose connections.
AWG
SIZE
ON-VEHICLE SERVICE
When replacing wire, it is important that the correct size
wire be used as shown on applicable wiring diagrams or
parts book. Each harness or wire must be held securely in
place to prevent chafing or damage to the insulation due
to vibration.
WIRING DIAGRAMS 12
Figure 16—Removing the Terminals from
2. Terminal (61).
[><] Install or Connect (Figure 17)
I. Pry up on the tang (70).
2. Terminal into the connector.
Tool Required:
J-28742 Terminal Remover
1. Primary lock (121) by lifting.
2. Connector sections.
3. Secondary lock (125) by spreading the sides of the
hasp, thus clearing the staples and rotating the
hasp (127).
4. Terminal (131) by using J-28742 (128).
* Snip off the old terminal assembly.
5. 5 mm of the wire insulation (130).
[^]
Clean
Terminal
barrel (124).
[><] Install or Connect (Figure 19)
the Connector
1. Terminal insulator (134) on the wire. Slide the
insulator back on the wire about 8 cm (3 inches).
2. Terminal (131) on the wire.
* Roll crimp (132) and solder the terminal
3. Terminal insulator (134) and the roll crimp (133).
4. Terminal into the connector.
5. Secondary lock (125).
6. Connector sections until the primary lock (121)
engages.
WIRING CONNECTOR TERMINAL
REPLACEMENT (TWIN LOCK TYPE)
[<>] Remove or Disconnect (Figure 18)
Tool Required:
J-22727 Terminal Remover
1. Connector lock tangs.
[<>] Remove or Disconnect (Figure 10)
1. Terminal lock tang.
[<>] Remove or Disconnect (Figure 19)
METRI-PACK CONNECTOR REPLACEMENT
2. Terminal lock tangs.
[<>] Remove or Disconnect (Figure 19)
3. Terminal
[><] Install or Connect
1. Pry out the tangs
2. Terminal into the connector.
.
Figure 18—Twin Lock Connector Terminal
Tool Required
J-35689-A Terminal Remover
1. Primary lock (121) by lifting.
2. Connector Body (1ST).
3. Connector seat (120) by pulling the seal back onto
the wires away from the connector body (137).
WIRING DIAGRAMS 13
WIRING DIAGRAMS 14
90. Jacket
91. Twisted Wires
92. Splice Clip
93. Crimp and Solder
94. Electrical Tape Wrap
95,. Outer Electrical Tape Wrap.
B-06230
Figure 20 Twisted Wire Repair
4. Terminal (138) by inserting J-35689 (139) into the
connector body (137) to depress the locking tang
(138), then push the wire and terminal through the
connector body (figure 20).
• Snip off the old terminal unless the terminal is to be
reused, reshape the locking tang.
5. 5mm (0.2-inch) of the wire insulation (130).
100.
101.
102.
103.
104.
105.
106.
Jacket
Aluminum/Mylar Tape
Drain Wire
Splice Clip
Crimp and Solder
Electrical Tape Wrap
Drain Wire Splice Clip, Crimped And Soldered.
107. Outer Electrical Tape Wrap.
B-06231
Figure 21 —Twisted/Shielded Wire Repair
* Terminal cavity of the connector body.
[><] Install or Connect (Figure 19)
1. Terminal (136) on the wire.
• Crimp and solder the terminal.
2. Terminal (136) into the connector cavity by pulling
the wire on the seal side of the connector until the
locking tang (138) is fully seated.
3. Seal (120) by pressing the seal into the connector
body (137) until it is fully seated.
4. Connector until the primary lock (121) engages.
VIEW B
120.
121.
122.
123.
124.
125.
128.
127.
128.
129.
Connector Seal
Primary Lock
Secondary Lock Staple
Secondary Lock
terminal Barrel
Secondary Lock
Lock Opened
Lock Opened
J-28742 Terrninal Remover
Wire
130. 5 mm (0.2 inch)
131.
132.
133.
134.
136.
137.
138.
139.
Terminal
Roll Crimp
Roll Crimp
Terminal Insulator
Metri-Pack Series 150 Female Terminal
Connector Body
Locking Tang
J-35689 Terminal Remover
WIRING REPAIR
The wire repair is very important for the continued
reliable operation of the vehicle. This repair must be done
as described in the following procedures.
Twisted Wires (Figure 20)
F-02349
Figure 19—Weather-Pack and Metri-Pack Connectors
[<>] Remove or Disconnect
1. Jacket (30).
2. Twisted wires (91).
3. Insulation from the wire.
[><] Install or Connect
1. Splice clip (93).
• Crimp.
• Solder.
2. Electrical tape wrap (94) on wires.
3. Outer electrical tape wrap (95).
Twisted Wires/Shielded Cable (Figure 21)
[<>] Remove or Disconnect
1.
2.
3.
A.
5,
Jacket (100).
Unwrap aluminum/mylar tape (101).
Drain wire (102).
Leads.
Insulation on the leads.
[><] Install or Connect
1. Splice clips (103).
2. Crimp and solder the splice clips (104).
3. Electrical tape (105) on the splices.
WIRING DIAGRAMS 15
4. Aluminum/mylar tape by wrapping and taping.
5. Drain wire with a splice clip (106). Crimp and solder
the splice clip.
6. Outer jacket electrical tape wrap (107).
SPECIAL TOOLS
1 Weather-Pack II Terminal Remover
2. Electrical Terminal Remover
3. Windshield Antenna Tester
1989 R/V TRUCK
PAGE
2
3-4
5
6
7-8
9-10
11
12-14
15
16-17
18
19
20
21
22-23
24
25
26
27-28
29-30
31
32
33-34
35-37
38-39
40-41
42
DESCRIPTION
FUSE BLOCK DETAIL
POWER DISTRIBUTION (GASOLINE)
POWER DISTRIBUTION (DIESEL)
AUXILIARY BATTERY (TP2)
HEADLAMPS & PARKING LAMPS
MARKER LAMPS
ROOF MARKER LAMPS
HAZARD LAMPS
HORN
DIRECTIONAL LAMPS
START (8 CYL.) I..25, (8 CYL,) LE8, LT9
START (8 CYL.) LO5, L19
START (DIESEL) LL4, LH5
IGNITION (6 CYL.) L25
IGNITION (8 CYL.) LE8, LT9
IGNITION (8 CYL.) LO5, LT9
THROTTLE BODY INJECTION
HOT FUEL HANDLING
GLOW PLUGS (DIESEL)
ENGINE CONTROLS (DIESEL)
FUEL CONTROL & IDLE AIR CONTROL (8 CYL„) LO5, L19
AUXILIARY COOLANT FAN
AUXILIARY FUEL TANK (NL2)/FUEL TANK SELECTOR SWITCH
EMISSION CONTROLS
ELECTRONIC CONTROL MODULE (ECM)-INPUTS (8 CYL.) LO5, L19
ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (8 CYL.) LO5, L19
ECM CHART (8 CYL.)
PAGE
43
44-45
46
47
48
49
50
51
52
53
54-55
56-57
58
59
60
61
62
63
64
65
66-67
68
69
70-71
72
73
74-76
77-80
81-84
85
DESCRIPTION
ECM CHART (DIESEL)
ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (DIESEL)
ELECTRONIC CONTROL MODULE (ECM)-INPUTS (DIESEL)
TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID
AUTOMATIC TRANSMISSION KICKDOWN SOLENOID (M40)
AIR CONDITIONING (C60)
REAR AIR CONDITIONING (C69)
HEATER
AUXILIARY HEATER (C36)
INSTRUMENT PANEL LAMPS
INSTRUMENT PANEL GAGES
INDICATOR
LAMPS
SEAT BELT WARNING BUZZER
BRAKE WARNING SYSTEM
FOUR-WHEEL DRIVE INDICATOR LAMP
CRUISE CONTROL (K34)
DOME LAMPS
CARGO LAMP (UF2)
RADIO EQUIPMENT (UM6. UP8)
RADIO EQUIPMENT (U63)
POWER WINDOWS (A31)
POWER REAR WINDOW (A33)
REAR DEFOGGER (C49)
POWER DOOR LOCKS
WIPER/WASHER
PULSE WIPER/WASHER (CD4)
BACKUP LAMPS
TAIL LAMPS
LICENSE LAMPS
CAMPER & TRAILER WIRING
SECTION A - PAGE 1
0
R.H.
SIDE MARKER
LAMP
HEADLAMP
SWITCH
R.H.
SIDE MARKER
LAMP
6294015
R.H. TAIL. STOP &
DIRECTIONAL
LAMP
TO l/P
► CLUSTER
CONN.
9 .8 BRN
SPLICE 9
R.H. PARK
LAMP
BACKUP
LAMP
SHEET
METAL
GROUND
SPLICE 150
E
3
^
LICENSE
LAMP
J
24
18
19
9
D
1
SPLICE 150
BACKUP
LAMP
150 .8 BLK
9 .8 BLK-
SHEET
METAL
GROUND
SPLICE 9
L.H. TAIL. STOP &
DIRECTIONAL
LAMP
6294015
0
L.H.
SIDE MARKER
LAMP
R.H.
SIDE MARKER
LAMP
REAR
FRONT
FUSE BLOCK
MARKER LAMPS (UTILITY VEHICLE)
SECTION A - PAGE 9
0
R.H.
SIDE MARKER
LAMP
HEADLAMP
SWITCH
WIDESIDE PICK-UP
(R05) ONLY
6294015
0
R.H. FRONT
CLEARANCE
LAMP
6294015
/^ "T \
U M i*
U— U
R.H.
SIDE MARKER
LAMP
R.H . REAR
CLE/
CLEARANCE
iLAMP
i
6294015
R.H. TAIL. STOP &
DIRECTIONAL
LAMP
$
O
O
R.H. PARK LAMP
'lh © S § -
L
150 .8 BLK ■
1
SHEET n
METAL
L.
GROUND
L
BACKUP
LAMP
SPLICE 1!
U 931
i b 9
J
L
2
419 350 :
30
o >l
0
1 93
J>| 91
31
130
35
97
92
3
z
LICENSE
LAMP(S)
1 20 1
:
C
T7
1202184
iih g > a -
SHEET
METAL
GROUND
L.H. TAIL. STOP &
DIRECTIONAL
LAMP
E3 S) GS a B e OD
S3 S) ffl S O IB (D
83 ffl 9
T/L CTSY
20 AMP
0
SECTION A - PAGE 10
6294015
IB O QD
0
Lr—u i-r-xj
[g ][g ]
6294015
MARKER LAMPS
FLEETSIDE (E63)
WIDESIDE (R05)
a
L.H.
SIDE MARKER
LAMP
L.H. FRONT
CLEARANCE
LAMP
WIDESIDE PICK UP
(R05 ONLY)
REAR
FRONT
FUSE BLOCK
L.H. REAR
CLEARANCE
LAMP
6294015
0
L.H.
SIDE MARKER
LAMP
FROM R.H SIDE
MARKER LAMP
FROM RH
FRONT &
REAR
CLEARANCE
LAMPS
(RPO R05 ONLY)
150 8 BLK
19 8 DK GRN
8911029
T R.H. TAIL STOP &
DIRECTIONAL
LAMP
R.H. TAIL, STOP &
DIRECTIONAL
LAMP
(PART OF RH TAIL.
STOP, DIRECTIONAL.
& BACK UP LAMP
ASM)
^
FROM BACK UP LAMP
FROM END GATE
-< IDENTIFICATION
LAMPS (RPO E63 ONLY)
6288424
2962509 6288712
(RPO E63 ONLY)
LAMP ASM
GROUND
19 .8 DK GRN
-18 .8 YEL -
RPO R05 ONLY
12015798
12016024
TO BULKHEAD
CONNECTOR
FOR REMAINDER
OF CIRCUIT
SEE HAZARD
LAMPS
18 .8 YEL
19 8 DK GRN
24
19
9
,H
fr-r—i —i
1
2962509 6288712
(RPO E63 ONLY)
FRAME
GROUND
jid lh ii
3
iJ
12020099
6288424
Q)
LAMP ASM
GROUND
TO BULKHEAD
CONNECTOR
FOR REMAINDER
OF CIRCUIT
SEE HAZARD
LAMPS
FROM END GATE
IDENTIFICATION
LAMPS (RPO R05 ONLY)
jiiih a
24, 19\ 1
,18
IV---------- iJ
FROM BACK UP
LAMP
L.H. TAIL STOP &
DIRECTIONAL
LAMP
150 .8 BLK
.8 YEL
I
©
~ L.H. TAIL, STOP &
DIRECTIONAL
LAMP
12090099
FROM LH
FRONT &
REAR
CLEARANCE
LAMPS
(RPO R05 ONLY)
SECTION A - PAGE 14
03 & 43 W/O RPO E62, E63
STEP SIDE PICKUP-RPO E62
SPLICE 150
FROM L.H. SIDE
MARKER LAMP
(PART OF LH TAIL.
STOP, DIRECTIONAL,
& BACK-UP LAMP
ASM)
HAZARD LAMPS
18-.8 YEL
150.8 BLK
FLEETSIDE PICKUP-RPO E63
WIDE SIDE PICKUP—RPO R05
8911029
SHEET METAL
GROUND
FRAME
GROUND
—f iS ^ ----- 1 51
3.0 BLK
R.H.
SIDE MARKER
LAMP
R.H.
SIDE MARKER
LAMP
12034372
R.H.
HEADLAMP
CONNECTOR
m
SHEET
METAL
GROUND
E D na
t z f e
g g y
6294015
151 .8 BLK
ISO
39
Ha
419
0
(5
TO l/P
CLUSTER
D
151 3.0 BLK
Q ElnDD
S C D
SHEET
METAL
GROUND
FRAME
GROUND
I hmJ
12066261
SPLICE 15
1 5 1 8 BLK
R.H. PARK &
DIRECTIONAL
LAMP
SPLICE 151
15 .5 DK BLU
-14 .5 LT BLU-
15 .8 DK BLU
R.H.
HIGH BEAM
HEADLAMP
CONNECTOR
SPLICE
151 .8 BLK
„
/
8917280
R.H. PARK &
DIRECTIONAL
LAMP
FROM
AUXILIARY
COOLING
FAN
(LE8. L19 & C60)
6288472
FROM
AUXILIARY
COOLING ,
FAN
(LE8, L19
& C60)
15 .5 DK BLU
14 .5 LT BLU
SHEET
METAL
GROUND
150 .8 BLK
150.8 BLK
L.H
HIGH BEAM
HEADLAMP
CONNECTOR
12020099
SPLICE
L.H. PARK &
DIRECTIONAL
LAMP
150.8 BLK -----
931
2
39 4 1 9 3 5 0 :
3
0
L
31
3
130
r 35 2
;
93 97
91 92' <
SPLICE 14
14 .8 LT BLU
D]
L.H. PARK &
DIRECTIONAL
LAMP
12020184
150 .8 BLK
L.H
HEADLAMP
CONNECTOR
—----------- -— —
6288471
6294015
L.H.
SIDE MARKER
LAMP
DIRECTIONAL LAMPS
SECTION A - PAGE 16
j*
..
1 39 yy i
\ I U h » i 13 i
It*
i-S:
12020099
... n r^ h fi..
£ 1
H
--------------- ---------------------
SHEET
150 .8 BLK
GROUND
FUSE BLOCK
E
ED G) (5 H ffl IE E « «
(s s i a
a ® e
«oo
e
METAL
FROM SIDE
MARKER LAMP
SPLICE 150
.
i
O
150 .8 BLK -
G3 (3 (3 GB QD SD OB
•A T T
(OH
ACC
lf»
R.H. TAIL, STOP &
DIRECTIONAL
LAM P
PWA
•MOW? «Hu£? fsA
r
19 .8 DK GRN -
150 .8 BLK
Iz S B z S
19 .8 DK GRN
C3
REAR
DIRECTIONAL
FLASHER
8911029 (16)
-38- 8 DK BLU-
FROM BACK UP LAMP
16 .8 PPL
19 .8 DK GRN
19 .8 DK GRN
SPLICE 19
.19 8 DK GRN
18 .8 YEL
12015024
(STEERING COL SWITCHES)
FROM BACK-UP LAMP
L.H. TAIL STOP &
DIRECTIONAL
LAM P
12015798
19-.8 DK GRN
18 .8 YEL ---16 .8 PPL -----
150-.8 BLK
18-.8 YEL
15 .5 DK BLU
14 .5 LT BLU
- 150-.8 BLK
L
18 .8 YEL
12004147
8911035 (06)
DIRECTIONAL
SIGNAL SW
FROM
SIDE MARKER LAMP
SPLICE
150 .8 BLK
SHEET METAL
GROUND
12004148
DIRECTIONAL LAMPS (16, 06 MODELS)
SECTION A - PAGE 17
30 2 <£
§1
2
30 zm
|> 3
C H m
O mI
2 .8 BLK/RED
2-2.0 RED THERMO HW
FUSIBLE LINK
19 BLK■6-3.0 PPL-33 .5 TAN/WHT-
STARTER MOTOR
SOLENOID
d d io
O
S
m p D
EC
17^—---
TO PARK
BRAKE
WARNING
IS
UJ
fs
Q□
S3
8911698
SW.
JUNCTION
BLOCK
Q D fa
BuQ H l
o S
0 ••
H B nU n
ii|
r *Q''
q d
# —2 .8 RED'
SPLICE
I
$
o
o
2
l/P CLUSTER
CONN.
Ue e i
8900371
ENGINE
5
z
o
soc
l/P
AUTO TRANS.
ONLY
&
Si
I 2 |440|420|
I 39 |806|439|
rLivc 2
£
SPLICE
Il 20| I III
f 3 | 31|
[~4M| 2
51 Ivw
130-.22 BRN/WHT
»3 l f
t * 1**191ill
[4 2 2 | 97 |
2-3.0 RED-
SPLICE 2
12062316
Y
3 (§ >
2-1.0 RED
FUSIBLE LINK'
H
M
fs:
sb ^
-
MANUAL
TRANS
ONLY
GRD 1 Q D j
GRD 2 P T 1
2 3.0 RED—
I
!
12010966
TO HD.
LP. SW.
2-1.0 RED—
SPLICE 2
6294641
•33- 5 TAN/WHT------------
25-1.0 BRN8917548
HE m J
O
<0 «
•2-1.0 RED■6 3 0 PPL-
CLUTCH ■? ; ■
START [ J R
SWITCH T T ^
ST AR1
RUN
OFF
LOCK
ACC
(MAN. ONLY)
GENERATOR
03 03 OS H (S ID QD *■**
G3 GD ffl H QD 03 DD
woo
■19 BLK-
■ATT
.8 BLK'
BATTERY
TO
ECM
n
IQ BD 09 GS OD (0 CD
-19 BLK-
«O l
<
ION
r»—£3 o — «~i
SHUNT tHUMT
U—IJ lu—u
r-t_ n r*—-n
SHEET
METAL
GROUND
LM] US
ENGINE
GROUND
<0
00
I
I
o
START GAS (L05, L19)
SECTION A - PAGE 19
15 .8 BLK
TO A/C COMP
l/P CLUSTER
CONN.
IGNITION L 2 5 - V 6
FUSE BLOCK
SECTION A - PAGE 21
ELECTRONIC
CONTROL MODULE
CONNECTORS
9SI
Y
G E N E R A TO R
mr----1— p " ' ♦ ---l
I----------- \/F|---- -—|1
I
. >----- h
-j|
•
m
m
m
IGNITION LE8, L T 9 - V 8
SECTION A - PAGE 22
CONVENIENCE
CENTER
TO BRAKE
SWITCH
(MD8 ONLY)
l/P CLUSTER
CONN.
IGNITION L 0 5 , L 1 9 - V 8
FUSE BLOCK
REAR
SECTION A - PAGE 23
l/P CLUSTER
CONN.
TO
GENERATOR
IGNITION L 05 , L19 - V 8
SECTION A - PAGE 24
FUSE BLOCK
REAR
OXYGEN
SENSOR
439 .8 PNK/BLK
412-.8 PPL
THROTTLE
POSITION
SENSOR
TO COOLANT
TEMP SENSOR
SPLICE
452
452 A
452 .8 BLK
/
412 .8 PPL
______
452 .8 BLK
ELECTRONIC
CONTROL MODULE
CONNECTORS
417 .8 DK BLU
417-.8 DK BLU
|»5l| 1
l«M| 2 f*3«1
□
» |5 ]
[«3] 4 [443]
• 416 .8 GRA —
416 .8 GRA
467 .8 LT BLU 468 .8 LT GRN 439 .8 PNK/BLK
f
TO EVRV SOL.
TO AIR SOL.
(L05 HD ONLY)
INJECTOR 1
□
□
□
• [E l
10ESI
„(« 2 j
« □
i 3 [7 3
□ " □
E 5 3 ieQ51
TO AIR SOL.
TO EGR SOL.
(L05 LD ONLY)
467 .8 LT BLU
EH1 ?E 3
12045575
417-.8 DK BLU
481 .8 RED
416-.8 GRA
SPLICE
439, 481,
482
•439 .8 PNK/BLK •
m
HTK
TO HALF
FUNCT. ESC
E) Bl O H IB IB OB « «
e .
468 .8 LT GRN
BQ G) (5 H (9 OB E
482 .8 WHT
l/P
SHUNT
SHUNT
n s jf i R
ENGINE
<
"°°
O l
03 SI (5 OS 9) IB QQ
m tt
io n
acc
in
mm
n —-n r«—n
oa]
rsaI
p^n
r g iiM 1
----------------- FwiUwrbb
[ 3 8 |80 e i4 3 »
120
In
IQ
REAR
FRONT
FUSE BLOCK
l*isL"Jj=
r 21 3s 11
422£9jjlT ]
«T»2
v
TO VSS
91
8917253
12020184
a
THROTTLE BODY INJECTION
L 0 5 /L 1 9 ONLY
SECTION A
-
PAGE 25
HOT FUEL
HANDLING
HOT FUEL HANDLING
L 0 5 /L 1 9 —V8
SECTION A - PAGE 26
FRAME
GROUND
AUX FAN
COOLING SW
SHEET
METAL
GROUND
FROM RH
HEADLAMP(S)
PARK & DIR
SIGNAL
>
LAMPS
)
151 3.0 BLK
702 2.0 BLK/RED<
•935 .8 DK GRN —
|9 3 5 Y
39 .8 PNK/BLK —
\ 2 j
AUXILIARY
COOLING
FAN
RELAY
-2 -2 .0 RED-------
12010015
12020184
L19
l/P
702-2.0 BLK/RED151 2.0 BLK---12015792
G UZD
AUXILIARY
COOLING
FAN
TO CHECK
ENGINE
LAMP
HOT AT
ALL TIMES
39 .8 PNK/BLK
TO l/P
CLUSTER
CONNECTOR
SPLICE 2
12020184
JUNCTION BLOCK
AUXILIARY COOLANT FAN
L19/LE8 & C 60
SECTION A - PAGE 32
-*k-
LE8
RIGHT-HAND
AIR
DIVERT
SOLENOID
150.8 BLK-
O]
REAR SIDE
ENGINE
GROUND
SPLICE
39
900 .8 YEL39 .8 PIMK/BLK.
l/P
39 .8 PNK/BLK -
ENGINE
SPLICE 900
n—
,rmI
[ R 5I
l
I5 9 1
900 .8 YEL
Q
39 .8 PNK/BLKAIR DIVERT SOLENOID
AIR
CONTROLLER
12040753
( 3 0 | 1 31 l f 2 6 l l 3 6 H 9 7 l f 9 T |
39
IGNITION SWITCH
150
GROUND
TACHOMETER TO COIL
CHECK ENGINE LAMP
AIR SWITCH SOLENOID
121
39 .8 PNK/BLK-
419
436
B IZ D G J J
SPLICE
39
- 150 .8 BLK —
8917253
a
•419-.8 BRN/WHT
8917232
-419 .8 BRN/WHT-
^ 4 ^
12040947
DISTRIBUTOR
CONNECTOR
0 II
1
121 .8 WHT -
8911979
AIR
CLEANER
TEMP
SWITCH
6294828
LEFT-HAND
AIR
DIVERT
SOLENOID
6288186
FRONT
FUSE BLOCK
REAR
900-.8 YEL39 .8 PNK/BLK
- ANTI­
DIESEL
SOLENOID
(MAN TRANS
ONLY)
8911256
EMISSION CONTROLS - L T 9
SECTION A - PAGE 35
RIGHT-HAND
AIR
DIVERT
SOLENOID
ENGINE
GROUND
ENGINE TO
4 GRD STRAP-
O l BODY GRD
936 .8 YEL► TO “ SERVICE
ENGINE SOON’
LAMP
39 .8 PNK/BLK.
39 .8 PNK/BLK
SPLICE 936
a
AIR DIVERT SOLENOID
AIR
CONTROLLER
936 .8 YEL-
12040753
IGNITION SWITCH
GROUND
TACHOMETER TO COIL
CHECK ENGINE LAMP
AIR SWITCH SOLENOID
39
150
121
39 .8 PNK/BLK-
419
436
_ 150 .8 BLK —
SPLICE
39
a
419 .8 BRN/WHT
419 .8 BRN/WHT
12040947
DISTRIBUTOR
CONNECTOR
39-.8 PNK/BLK
HtH
U—
121 .8 WHT -
8911979
0
0
0
0
B ! ] GO
[3 (3 0 0 OH SD H)
(3 0 0 0 ® H) ”
AIR
CLEANER
TEMP
SWITCH
BATT
n —n
IGN
r~i—r i
ACC
LPS
0
m
^
TO “ SERVICE
ENGINE SOON”
LAMP
I
[4 3 6 }
| 936[
39 .8 PNK/BLK
6294828
K l CM]
ds ca
6288186
ECMI
CHOKE
CWAWK
FRONT
39
(
12015987
EMISSION CONTROLS —L25
SECTION A - PAGE 36
-39 .8 PNK/BLK-
K *l
a
i i r
REAR
FUSE BLOCK
IDLE
STOP
SOLENOID
E S
o )
SPLICE
39
436
RIGHT HAND
AIR
DIVERT
SOLENOID
)
ENGINE
GROUND
ENGINE TO BODY
GROUND
-4-GRD STRAP.
-436 .8 BRN■900 .8 YEL12015792
IIP
-39 .8 PNK/BLK-
AIR
DIVERTER
SYSTEM
RELAY
DIRECT GROUND
150
419-.8 BRN/WHT.
919
900-.8 YEL--------
— r
900
419
CHECK ENGINE
IGNITION SWITCH
TO “ SERVICE
ENGINE SOON’
LAMP
tS .id —
|93«1
I 2
I
(350 4.191 3 94. >
39
lo l i
u
3’ i
1— iv y
I
I *»l
I 2 |3 5 l
39 .8 PNK/BLK ■
39 .8 PNK/BLK.
I 3
12010015
Ilf
I
,| •
“
?l
| 92 | 91 |
iv
w
«=
12020183
12020184
IGNITION
L-419-.8 BRN/WHT
DIRECT GROUND
AIR
DIVERTER
MODULE
TACHOMETER TO COIL
AIR SWITCH SOLENOID
SPLICE.
436
12040947
DISTRIBUTOR
CONNECTOR
s to
1
SPLICE
39
121-.8 WHT-
-
8911979
AIR
CLEANER
TEMPERATURE
SWITCH
39
39 .8 PNK/BLK
900
900-.8 YEL-----
39 .8 PNK/BLK
6288186
¥
436
LEFT HAND
AIR
DIVERT
SOLENOID
8911256
■436-.8 BRN
900 .8 YEL12015792
900
)
ANTI­
DIESEL
SOLENOID
MAN TRANS
ONLY
EMISSION CONTROLS—LE8
SECTION A - PAGE 37
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
THROTTLE
POSITION
SENSOR
-439 .8 PNK/BLK
452-.8 BLK
-440-1.0 ORN-
417 .8 DK BLU
416 .8 GRA —
455 .8 BLK ----
-455- 8 BLK -----
432 .8 LT GRN
-432 .8 LT GRN
417- 8 DK BLU
-417-.8 DK BLU-
416-.8 GRA —
-416 .8 GRA----
410 .8 YEL
-410-.8 YEL-
452 .8 BLK
-452 .8 BLK '
485 .8 BLK
-485 .8 BLK ■
412-.8 PPL ■
■412-.8 PPL-
SPLICE 416
COOLANT
TEMP
SENSOR
410 .8 YEL
D:
452 .8 BLK
!ZZ!" Riga,
SPLICE 452
120407S3
-486 .8 BLK/RED
496 1.0 DK BLU
E.S.C.
SENSOR
-► TO INJ1
L05 ONLY
TO INJ2
439
485
439 .8 PNK/BLK
TO A.I.R.tLD L05)
E.S.C. GROUND
486
485 .8 BLK ------
TO A.I.R. (HD L05)
E.S.C. SEN INPUT
496
12V IGN.FUSED
SPARK RETARD
486- 8 BLK/RED
l/P
ENGINE
496-1.0 DK BLU
5 c
u
12015982
1
E.S.C.
HYBRID
FUNCTION
<r>
94 29
9 39
15
14
33 12 J
99 11 T
IZ D y K H Z D
412-.8 PPL
OXYGEN
SENSOR
12015791
ELECTRONIC CONTROL M ODULE-INPUTS
L05, L19-V 8
SECTION A - PAGE 38
130
: 19 120
* S
: 24 30 19
12020183
12020184
422
-439 .8 PNK/BLK
-439-.8 PNK/BLK
439 .8 PNK/BLK
ELECTRONIC CONTROL M O DULE-INPUTS
L0 5 , L 1 9 - V 8
SECTION A - PAGE 39
ELECTRONIC
SPARK
TIMING
E.V.R.V.
FOR L05 W/H.D
& L19 ENGINE
ONLY
AIR
SWITCH
ELECTRONIC CONTROL MODULE
L05, L19-V 8
SECTION A - PAGE 40
TO
ECM
ELECTRONIC CONTROL M O D U L E -O U T P U T S
L 0 5 , L 1 9 -V 8
SECTION A - PAGE 41
CIRCUIT WIRE
NO.
SIZE
465
*
•
.8
COLOR
CAVITY
DESCRIPTION
DK GRN/WHT
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
FUEL PUMP RELAY DRIVE
NOT USED
NOT USED
EGR SOLENOID
SYSTEM CHECK LAMP
1 2V IGNITION FUSED
TORQUE CONVERTER CLUTCH
SERIAL D ATA
ASS Y LINE DIAG./LINK
SPEED SENSOR
5 V RETURN B
SYSTEM RETURN
B1
B2
B3
B4
B5
B6
B7
B8
B9
B 10
B11
B 12
12V BATTERY FUSED
ELEC FUEL PUMP FUSED FEED
DISTRIBUTOR REF LOW
NOT USED
DISTRIBUTOR REF HIGH
NOT USED
SPARK RETARD CONTROL
AIR CONDITION
NOT USED
PARK/NEUTRAL SWITCH
NOT USED
NOT USED
435
419
439
422
461
451
437
452
450
.8
.8
.8
.8
.8
.8
.8
.8
.8
GRA
BRN/WHT
PNK/BLK
TAN/BLK
ORN
W H T/BLK
BRN
BLK
BLK/W HT
440
120
453
.8
.8
.8
ORN
TA N /W H T
BLK/RED
430
.8
PPL/WHT
485
59
.8
.8
*
434
*
•
AUTO TRANS ONLY
L 0 5 ONLY
.5
BLK
DK GRN
ORN/BLK
ELECTRONIC CONTROL MODULE
L 0 5 , L 1 9 - V 8 TBI
SECTION A - PAGE 42
CIRCUIT WIRE
SIZE
NO.
*
•
COLOR
436
444
443
441
442
446
.8
.8
.8
.8
.8
.8
BRN
LT GRN/BLK
LT GRN/WHT
LT BLU/W HT
LT BLU/BLK
LT BLU
806
410
432
.8
.8
.8
PPL/WHT
YEL
LT GRN
417
416
.8
.8
DK BLU
GRA
440
.8
ORN
551
455
.8
.8
T A N /W H T
PPL
423
424
413
412
.8
.8
.8
.8
W HT
TAN/BLK
TAN
PPL
468
.8
LT GRN
467
.8
LT BLU
*
AUTO TRANS ONLY
•
L 0 5 ONLY
CAVITY
DESCRIPTION
C8
C9
C IO
C11
C12
C 13
C14
C15
C 16
NOT USED
AIR SWITCH SOLENOID
STEPPER COIL B LOW
STEPPER COIL B HIGH
STEPPER COIL A HIGH
STEPPER COIL A LOW
A/C CONTROL
(4TH GEAR DISCRETE)
NOT USED
CRANK DISCRETE FUSED
COOLANT TEMPERATURE
MANIFOLD ABSOLUTE PRESS.
NOT USED
THROTTLE POSITION SENSOR
5V SENSOR REFERENCE
NOT USED
12V BATTERY FUSED
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D 11
D12
D13
D14
D15
D16
SYSTEM GROUND
5V RETURN A
NOT USED
HEI SPARK TIMING
HEI BYPASS
OXYGEN SENSOR LOW
OXYGEN SENSOR HIGH
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
INJECTOR B DRIVE
NOT USED
INJECTOR A DRIVE
C1
C2
C3
C4
C5
C6
C7
CIRCUIT WIRE
SIZE
NO.
432
417
410
.8
.8
.8
COLOR
CAVITY
DESCRIPTION
LT GRN
DK BLU
YEL
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A 11
A12
M ANIFO LD ABSOLUTE PRESS
THROTTLE POSITION SW ITCH
CO O LANT TEMP. SENSOR
NOT USED
NOT USED
ASS Y LINE DIAG./LINK
NOT USED
ENGINE SPEED SENSOR
VEHICLE SPEED SENSOR
ASS Y LINE DIAG./LINK
NOT USED
THROTTLE POSITION SW ITCH
& M ANIFO LD ABSOLUTE
PRESS.
B1
B2
B3
B4
B5
B6
B7
B8
B9
B 10
B11
B1 2
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
451
.8
W H T/BLK
121
437
488
.8
.8
.8
W HT
BRN
LT GRN
416
.8
GRA
CIRCUIT WIRE
NO.
SIZE
COLOR
452
150
.8
.8
BLK
BLK
*4 2 2
905
.8
.8
TAN/BLK
BRN
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
435
902
538
.5
.8
.8
GRA
LT BLU
DK GRN
439
.8
PNK/BLK
440
.8
ORN
DESCRIPTION
CAVITY
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
SYSTEM RETURN
SYSTEM GROUND
NOT USED
NOT USED
TORQUE CONVERTER CLUTCH
COLD A D VAN C E/G LO W PLUG
INHIBIT RELAY
NOT USED
NOT USED
NOT USED
EGR DIAGNOSTIC CONNECTOR
EGR SOLENOID
EPR SOLENOID
NOT USED
1 2 V IGNITION FUSED
NOT USED
1 2 V BATTERY FUSED
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
NOT
C1
C2
C3
C4
C5
C6
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
USED
*
AU TO TRANS ONLY
ELECTRONIC CONTROL MODULE
LH6 -D IE S E L
SECTION A - PAGE 43
■422- 8 TAN/BLK •
■446- 8 LT BLU —
STOP LAMP
SWITCH
(MD8 ONLY)
TRANSMISSION
CONVERTER CLUTCH
SOLENOID
ELECTRONIC
CONTROL MODULE
CONNECTORS
■OPENS IN
4TH GEAR
CLOSES WITH
INC. TEMP. .
12047948
12010649
12010503
422
TO INST.
CLUSTER
SPLICE
422
E
D
CN
Ol (0
n
TO HOT FUEL
HANDLING
MODULE
TO KICK DOWN
SOL. (M40 ONLY)
C
B A
"LO
<0
CO to II)
*
r
3 —
G
l/P
H
J
K
^
L M
12020043
TO CONN.
CENTER
12045675
A.L.D.L.
ENGINE
V
I
2
*o|
|3 5 0 |4 1 9 | 3 9 1
I____ Lao |
III
LLL?»I
I
I 251
I 2 |35| I
l422|
oTl
X
m
y/
O
•420 .8 PPL-
n
9 7 f 93 |
CD
91 |
3>
I « l» *l
TO l/P
CONN.
r '■
HOT IN
START AND
RUN
■422- 8 TAN/BLK.F I
-422 .8 TAN/BLK12020184
12020183
K l
FRONT
REAR
FUSE BLOCK
o)
TRANSM ISSIO N CONVERTER
CLUTCH DETENT SOLENOID (L 0 5 ONLY)
SECTION A - PAGE 47
422 .8 TAN/BLK-
TRANSMISSION
KICKDOWN
SOLENOID
>422 .8 TAN/BLK
TO ECM
L05 ONLY
L05/L19 ONLY
SPLICE 422
ENGINE
55 .8 ORN-
422 .8 TAN/BLK
J
422 .8 TAN/BLK
2984092
L19 ONLY
----------39 .8 PNK/BLK
£
J 4 2 2 j 39
12047782
j\
-— n _ . . n
12047781
[j
55
j422|
39
“
5
|J
TO FUEL
HEATER
TO COLD ADVANCE
& FAST IDLE
TEMP SWITCH
TO WATER IN
FUEL
SENSOR
KICKDOWN
RELAY
L05/L19 ONLY
LL4 ONLY
SPLICE
39
TO HOT FUEL
HANDLING MODULE
(IF EQUIPPED)
LL4
DIESEL
ONLY
39 .8 PNK/BLK-
m
SI IS (9 G9 QQ IS) QD *•**
El 03 G9 H B) (H E
KICKDOWN
SWITCH
___________________ q
is
si
mtt
LL4 DIESEL ONLY
n —n
SHUNT
q T~b i
him
r»—o
SHUNT
<
\ _
(B (B IE
1
«cc ip« nm
p—
| SA
TRANSMISSION
KICKDOWN
SOLENOID
FOR L I4 DIESEL ONLY
12052641
E 3 gzg
o)
LL4 ONLY
L
REAR
55 .8 ORN-
FUSE BLOCK d
<*>
>
2984092
TRANSMISSION
KICKDOWN
SOLENOID
i :
550
KICKDOWN SWITCH
FOR LE8, LT9 ONLY
□
HOT IN
START AND
RUN
FOR LE8, LT8 ONLY
2977647 |
55 |[ 139 |
LE8, LT9 ONLY
I
/
----- s------ 55 .8 ORN
2984092
AUTOMATIC TRANSMISSION
KICKDOWN SOLENOID (M 40)
SECTION A - PAGE 48
55 .8 ORN
8900420
l
L,
2977253
GROMMET
8911781
LE8, LT9 ONLY
■—139-.8 PNK/BLK
J
HOT IN
START AND
RUN
GROUND
BLOWER
SWITCH
DIODE
(NOT USED WITH
LE8, LT9, L25I
‘ 899 .5 CAPAC
JUNCTION
BLOCK
AIR CONDITIONING (RPO C60)
SECTION A - PAGE 49
BLOWER
SWITCH
12004101
52-5.0 ORN
•51-1.0 YEL-
L
■52-2.0 ORN-
E S S l
SPLICE 52
2977940
RESISTOR
\l
2977253
8900420
2977518
GROMMET
8911215
GROUND
HT*
EH
ff) S) (3 B (9 IB ID ««*■
(3 d (5 B QD 08 OD
*°
is is a a ai os is
•ATT
IQN
S M jN ?
SHUN?
ACC
IH
09
12004740
O
MM
i-r—«j u —vj
Of
AUX HTR A/C
25 AMP
E 9 153
b
FUSE BLOCK
REAR AIR CONDITIONING (RPO C 69)
SECTION A - PAGE 50
HEAR
o)
REAR BLOWER
MOTOR
RESISTOR
BLOWER
MOTOR
m
I M a H U tell
2965019
l l T
2977976
GROMMET
8911217
sffil
□
52 r
1 so l 3
■or
12004067
-5 2 -2 .0 ORN■51-2.0 YEL—
-5 2 -2 .0 ORN•72-2.0 LT BLU-
51-2.0 YEL■52-2.0 ORN-----— 72-2.0 LT BLU
50-2.0 BRN
50-2.0 BRN
12015952
12015987
HOT IN
RUN
—I
o
o
HEATER
SECTION A - PAGE 51
BLOWER
SWITCH
51-2.0 YEL
IU
952
-952-2.0 DK GRNB a
8905790
GROMMET
GROMMET
12004752
12015958
RESISTOR
1501
12004267
HOT IN
RUN
\rL
BLOWER
MOTOR
AUXILIARY HEATER (RPO C36)
SECTION A - PAGE 52
ILLUM
ILLUM
ILLUM
ILLUM
ILLUM
l/P CIRC U IT RO UTIN G
W IT H T A C H O M E TE R
HEATER
A/C CONTROL
ASSEMBLY
W /O
W /O - l/P CIRC U IT RO UTIN G
W IT H O U T T A C H O M E TE R
BRAKE
FROM
SEAT BELT
RETRACTOR
SWITCH
FROM CONV.
CENTER
FROM VSS
(L05, L19, LH6)
SPLICE 150
00
o
BUS
BAR E
GROUND
FUSE BLOCK
REAR
INSTRUMENT PANEL LAMPS
SECTION A - PAGE 53
2962965
COOLANT
TEMP
SENDER
L25
COOLANT
TEMP
SENDER
L05, L19.
LT9,LE8,
LH6,LL4
TO HOT FUEL
HANDLING
MODULE (L05. L19)
TO CONVENIENCE
CENTER
^
OIL
PRESSURE
SENDER
L05
OIL
PRESSURE
SENDER
L19. L25,
LE8, LH6,
LL4
FUEL
TANK
SENDER
L25.LE8,
LH6 & LL4
TO AUTO
TRANS KICKDOWN
TRANS KICKDOWN
SOLENOID
(M40)
INSTRUMENT PANEL GAGES
SECTION A - PAGE 54
TO BRAKE
SWITCH
(MD8)
ILLUM
0
ILLUM
0
ILLUM
W/0
0
ILLUM
0
ILLUM
0
l/P CIRCUIT ROUTING
WITH TACHOMETER
W /O-l/P CIRCUIT ROUTING
WITHOUT TACHOMETER
FROM W/S WIPER
WASHER SW
V
C 120 )
■120-1.0 TAN/WHT-
ELECTRIC FUEL PUMP
FUEL GAGE SENDING UNIT
-30 .8 PNK----------12059473
L05/L19
BLU OR PPL OR LT. GRN
INSTRUMENT PANEL GAGES
SECTION A - PAGE 55
TO GLOW PLUG
RELAY &
.
CONTROLLER-----
INDICATOR LAMPS
SECTION A - PAGE 56
TO AUTO
TRANS KICKDOWN
SOLENOID
(M40)
l/P CIRCUIT ROUTING
WITH TACHOMETER
W /O-l/P CIRCUIT ROUTING
WITHOUT TACHOMETER
1
1
1
1
11
1
1
1
1
1
J
----
419 .8 BRN/WHT
33- 5 TAN/WHT
33 .5 TAN/WHT
8917693
L1J Si;i j \ A1
!
I 11 1’ ^ 1
0 3 <-TJ
IE
!
10
I
IGNITION SWITCH
*
INDICATOR LAM PS
SECTION A - PAGE 57
■39 .8 PIMK/BLK
DIESEL
ONLY
FROM W/S WIPER
WASHER SW
FRONT
SEAT BELT W ARNING BUZZER
SECTION D -P A G E 6 4
SECTION A - PAGE 58
FUSE BLOCK
REAR
f& l
1^1
Q D ncm
c z jn ia
[isojDq ?]
l/P
CLUSTER
CONN.
□ElnEill
ODD
□E U I 233
n n d l
□
0
QDllEH]
8900371
-3 3 .5 TAN/WHT-
l/P
I
|3 0 0 | IGN
BAT 3
m
____
GRD 1 o n :
GRD 1 1 3 3
6294641
12010966
ST A M I
RUN
OH
1OCK
A(.C
12020184
IGNITION SWITCH
33 .8 TAN/WHT-
6288585
12004635
PARK BRAKE
WARNING SWITCH
D
a
12004635
i
BRAKE
PRESSURE
WARNING
SWITCH
12004267
BRAKE W ARNING SYSTEM
SECTION A - PAGE 59
•141-.8 BRN/WHT
4-WD
INDICATOR
LAMP
141-.8 BRN/WHT-
6294974
CC
O
O
K l
-1 5 0 .8 BLK—150 .8 BLK-
BUS
FRONT
D A D
GROUND
TRANSFER
CASE
SWITCH
o)
150-.8 BLK
n
E
156 .8 WHT ■
12004267
V 1 0 0 ,2 0 0
F
FUSE BLOCK
ill
1
m
4-WD SHIFT
LEVER LAMP
■150 .8 BLK-
■ni
>150 .8 BLK12004215
4-WD
INDICATOR
LAMP
141-.8 BRN/WHT
QC
O
O
150 .8 BLK
■150-.8 BLK
156-.8 WHT
■156-.8 WHT
12015792
(
156 ) 12015454
S ’!
TRANSFER
CASE
SWITCH
V 30 0
FOUR-WHEEL DRIVE INDICATOR LAMP
SECTION A - PAGE 60
REAR
FRONT
GROUND
FUSE BLOCK
o)
CRUISE
CONTROL
MODULE
CRUISE VENT VALVE
CRUISE CONTROL VAC
SPEED SENSOR
CRUISE SERVO
CRUISE SERVO
ELECTRONIC CRUISE
GROUND
BRAKE SW.
CRUISE ENGAGER SW.
CRUISE ENGAGER SW.
CRUISE
CONTROL
ACTIVATOR
84- —O
O—
S/C
8 3 - —O
O-H ►
R/A
397ON/OFF
VEHICLE
SPEED
SENSOR
CONTACTS CLOSED
WITH FOOT PEDAL
AT REST
AUTOMATIC
TRANS ONLY
r
— Lgu
yQ — i 397 1
BRAKE SW
12034117
CRUISE CONTROL (RPO K34) W/O UD4
SECTION A - PAGE 61
RIGHT
HAND
DOOR
JAMB
SWITCH
RIGHT
REAR
DOOR
JAMB
SWITCH
8911287
GROMMET
06 MODEL
ONLY
156
6288872
REAR DOME LAMP
(43. 06 & 03 MODELS)
(06 MODEL ONLY)
156
.8 WHT
FRONT DOME LAMP
2973324
TERM
2973324
TERM
vijQQQQQs
40.1 ORN-
156-.8 WHT-40-.8 ORN-
SPLICE 40
-4 0 .8 ORN156 .8 WHT
4—
156-.8 NAT-
8911353
TO REAR PANEL
DOOR/END GATE
HARNESS
EXTENSION
(06 MODELS)
6288544 (03, 06 MODELS)
12004333 (43 MODEL)
156
.8 WHT— —
40-1.0 ORN-
TO KEY-IN
WARNING
BUZZER
12015958
GROMMET
12004628
HEADLAMP SWITCH
DOME LAM PS
SECTION A - PAGE 62
LEFT
HAND
DOOR
JAMB
SWITCH
LEFT
REAR
DOOR
JAMB
SWITCH
06 MODEL
ONLY
6288872
TO ROOF
MARKER
LPS (RPO 401)
RADIO EQUIPMENT (RPO UM 6, UP8)
SECTION A - PAGE 64
-9 .8 BRN
9 .8 BRN
2973384
FRONT
SPEAKER
12004544
trd
12004543
1
RADIO RECEIVER
® @ IS ® GO
15 H ® I
E
*"°
a s ® ® ! ]
•G*
ACC
0
O
i.W%
Kl
C=3B^
FRONT
FUSE BLOCK
o
REAR
150.8 BLK .
m
bus
BAR
GROUND
RADIO EQUIPMENT (RPO U63)
SECTION A - PAGE 65
12010366
12010366
GROMMET
GROMMET
(UK
s
p
a
n
—
668-2.0 DK BLU
I
[ c ir c u it
| ^BR EAKER
“ .1
12004140
© I
I
669-2.0 BRN-
RIGHT REAR
WINDOW
MOTOR
RIGHT REAR
WINDOW
SWITCH
I [ c ir c u it
*2JBREAKER
668-2.0 DK BLU•
7— [Q[J-----
12004140
669-2.0 BRN-
IS £3 8 °
FUSE BLOCK
LEFT REAR
WINDOW
MOTOR
POWER WINDOWS
(RPO A 3 1 ) 4-DOOR
SECTION A - PAGE 67
^ 5 9 -
------- 150 3 .0 BLK
- t
XFRAM E
"
GRN
15300002
BLAZER
ONLY
n
15300027
□
i i
} ---- — 150-3.0 BLK
DE}------ 1
15300027
CUT OUT
SWITCH
MOTOR
BRK GRN
183 3.0 LT BLU-
60-3.0 ORN-
O
60 3.0 ORN/BLK183 3.0 LT BLU-
15300032
2977976
8905425
12004480
SPLICE
183
U*3
GH}
15300002
183-3.0 LT BLU-
183-3.0 LT BLU----
184-3.0 TAN —
184 3.0 TAN/WHT-
<
15300027
2984855
>
12004727
I____ _ {
------------- {
BLAZER
ONLY
15300027
__ I
}
)
TAIL GATE
WINDOW
MOTOR
—
15300002
TAIL GATE
WINDOW
SWITCH
(FRONT)
183-3.0 LT BLU
i
SPLICE
184
<
184-3.0 TAN/WHT
6288909
J~l HL
184-3.0 TAN/WHT76-3.0 PNK
183-3.0 LT BLU-
2989902
H3"
12015162
8911781
TAIL GATE
WINDOW
SWITCH
KEY OPERATED
GROMMET
U
12004884
183-3.0 LT BLU
EJ El IB
QQ OS) E
El El (9 B III IS) E
(3 El ffl ® E (0
12004883
■ATT
KM
Sh u n ?
shun?
ACC
SECTION A - PAGE 68
-60-3.0 ORN/BLK
184-3.0 TAN/WHT
^
L*t
P sa
FRONT
POWER REAR WINDOW (RPO A 3 3 )
E
"**"
E
FUSE BLOCK
REAR
<o
o>
m
i
o
z
g
C0
m
CO
o
o
"O
30
m
30
CD
O
G>
m
■n
O
m
>
3D
30
•150-1.0 BLK
DOOR
LOCK
RELAY
2984378
12034343
■295-1.0 GRA-
o n ii
I
*
----ll
60 2.0 ORN/BLK-
60-2.0 ORN/BLK-
195-.8 LT BLU —
-195 .8 LT BLU—
194-.8 BLK/WHT2977373
«
RIGHT HAND
DOOR LOCK
MOTOR
194 .8 BLK/WHT-
\r tJ
*
I [ c ir c u it
*2 BREAKER
12004140
60-2.0 ORN/BLK —
:
?
295
-------294-1.0 TAN
POWER WINDOWS
X
a
■295 1.0 GRA■294-1.0 TAN-
•294-1.0 TAN-
12 9 4 } 1
N.
/TH1
■295-1.0 GRA-
8911670
GROMMET
UNLOCK
RH
DOOR LOCK
SWITCH
12004155
-60 2.0 ORN/BLK -
LOCK
■195-.8 LT BLU194 .8 BLK/WHT
-60 2 .0 ORN/BLK -
| | l 9 4 1| 1 9 5 1| 6 0 {
HOT IN
ACCSY. AND
RUN
CB>- c
°—c » ■■<>C J- bC ^b
SPLICE
60
o_a r j >
- A
12015344
BEppp
r r r
POWER WINDOWS
-------------- 60 2.0 ORN/BLK
■195 .8 LT BLU---■194-.8 BLK/WHT -
L.H.
DOOR LOCK
SWITCH
POWER WINDOWS
12004883
I 12045658
12004155
12015344
0
0 (S ffl H E B (E|
IB
E) E S B ffl IB (Ej
1j 1
S
■295-1.0 GRA
0 ( 3 f f lS lt B ( B [ lT O
12020397
294-1.0 TAN
r v in n
3JJ
-150-3.0 BLK
£M3 K i M t a l
-295-1.0 GRA■294-1.0 TAN-
ca
KH EK*!
o.
° B C=3 S'S
FRONT
FUSE BLOCK
112951^294^11501
REAR
12015345
•60-2.0 ORN/BLK-
60-2.0 ORN/BLK
195 .8 LT BLU —
195-.8 LT BLU —
■194 .8 BLK/WHT-
■194-.8 BLK/WHT-
LEFT HAND
DOOR LOCK
MOTOR
■295-1.0 GRA294-1.0 TAN-
POWER WINDOWS
BUS
BAR
GROUND
POWER DOOR LOCKS
(RPO A U 3 ) 2-DOOR
SECTION A - PAGE 70
12004267
Virtl
8911670
GROMMET
12004140
£3q£5]
12015345
in II o
8911670
12015344
12010366
GROMMET
GROMMET
RIGHT FRONT
DOOR LOCK
^ 7 -0 0 1 ---- 1
MOTOR
■295-1.0 GRA
■294-1.0 TAN
294
ru N
CIRCUIT
BREAKER
XM1
295
295 1.0 GRA294-1.0 TAN-
1 [ c ir c u it
2 I BREAKER
RIGHT REAR
DOOR LOCK
MOTOR
12004140
12004140
12034344
6:1
* = 7 -« 295 L
■195-.8 BK/WHT60 2.0 ORN/BLK■194.8 LT BLU —
massi
i
MnJ
UNLOCK
<0II r* I c
^nlf
o>II r>
co * B
___
12020397
12004267
PANEL REAR
PANEL
DOOR LOCK
MOTOR
12004267
LOCK
I
12015345
12047676
12004155
f f j[ t I A
12015344
RH
DOOR LOCK
SWITCH
Ijo - C
3 > -
b
©- A
° - C I ""W >-
c a > -B = ■ > f— f c - A t _ * o 2984378
DOOR
LOCK
RELAY
12004883
TO FUSE
BLOCK
CAVITY E
2977373
LH
DOOR LOCK
SWITCH
12020398
12004155
12020397
12015345
/rui
12016344
12015344
194.8 LT BLU■60-2.0 ORN/BLK195-. 8 BLK/WHT-
5VS
CIRCUIT
BREAKER
-295-1.0 GRA
•294-1.0 TAN
MH.
8911670
GROMMET
160
12004267
TO BUS BAR
GROUND
LEFT FRONT
DOOR LOCK
MOTOR
[5VBI
PUN
LEFT REAR
DOOR LOCK
MOTOR
295-1.0 GRA■294-1.0 TAN12004140
12004140
12010366
GROMMET
POWER DOOR LOCKS
(RPO AU3) 4-DOOR
SECTION A - PAGE 71
HTA
E
(SI IS ffl H IB OH (B j***
BD IS IS B QD OS E
(S (S s i s i i i i i
WINDSHIELD
WIPER
MOTOR
•ATT
io n
CiuN?
SHUN?
acc
in
0
o>s
150-.8 BLK-
mm
fs A
tS J is L
^20*] HEaI
gatJmSu
. . . . . .
[" i 5a "
iCofr
JJ\
HOT IN
ACCSY.
START
AND RUN
Q s a u i& i
G^] [MI
(s a
wWIWW
(CM I
***“
Its 6 3
CNOKI
FRONT
BUS
BAR
GROUND
C=3 frS
REAR
FUSE BLOCK
93 .8 WHT93 .8 WHT
WIPER, WASHER SW.
(COLUMN MOUNTED)
94
150
92
3 j
91-.8 GRA-
91
SI
COWL
150 .8 BLK
12020492
TO INST.
CLUSTER
CONN
SPLICE
150
TO CONN.
CENTER
-<
TO RADIO
TO A/C
HEATER LP
TO SEAT
BLT SW
WIPER/WASHER
SECTION A - PAGE 72
© ©
®
0
E
GD E
© © S B ® ® ®
WOO
©
150 .8 BLK*
a s © ® ®
©
•ATT
SHUNT
SHUNT
~m
Q 3 t M J JAOXMMTULA«CESTOP
MHA2]
r2oP
T I CTSY
PoT I
uyV
25A |
GAUGC KH.I
HTW A C
| 15A
bus
BAR
GROUND
lAOtO
rU
m
tU
t fwhwoo
[^3 K I
CCMI
CHOM
FRONT
PULSE, WIPER, WASHER SW
(COLUMN MOUNTED)
TO SEAT
BLT SW
PULSE WIPER/WASHER
RPO CD4
SECTION A - PAGE 73
SHEET
METAL
GROUND
2973407
TRANSMISSION
BACKUP
LAMP SWITCH
150.8 BLK-
(AUTO TRANS)
ONLY
SPLICE 150
-eCgHi'
FROM RIGHT HAND TAIL.
STOP. DIRECTIONAL ft
SIDE MARKER LAMPS
2973431
MANUAL
ONLY
r
RIGHT HAND
BACKUP
LAMP
.8 LT GRN
- 75 .8 DK BLU
24 .8 LT GRN-24 .8 LT GRNft
L
9
19
’•ibi
12020099
-24 .8 LT GRN
MANUAL
ONLY
12020184
LEFT HAND
BACKUP
LAMP
8911027 (16)
8911028 (06)
BACK-UP
LAMP SWITCH
4-SPEED MAN. ONLY
24
5
D
UJ
2S
— UJ
AC
FROM LEFT HAND TAIL.
STOP. DIRECTIONAL ft
SIDE MARKER LAMPS
/ ' “N
m l
SPLICE 150
--------24 .8 LT GRN-------- 75 .8 DK BLU------- (
75
12015792
BACK-UP LAMPS-UTILITY, SUBURBAN
SECTION A - PAGE 74
6294468
2977373
MANUAL ONLY
8911781
GROMMET
150-.8 BLK
, SHEET METAL
11
GROUND
BACKUP
LAMP
(PART OF RH TAIL.
STOP AND DIR
LAMP ASM)
-24 .8 LT GRN
PART OF
LAMP ASM
LAMP ASM
GROUND
6288585
24 .8 LT GRN24 .8 LT GRN ■
FRAME
GROUND
TO BULKHEAD
CONNECTOR
FOR REMAINDER
OF CIRCUIT
SEE BACK-UP LAMPSUTILITY, SUBURBAN
MODELS
12015798
6288585
o
§ LAMP ASM
7
GROUND
U C ^Jl
12020099
I—
ecS )
PART OF
LAMP ASM
-24 .8 LT GRN
BACKUP
LAMP
(PART OF LH
TAIL STOP AND
DIR LAMP ASM)
03 & 43 MODELS W/O RPO E62, E63
BACK UP LAMPS
SECTION A - PAGE 75
FROM R.H. SIDE
MARKER LAMP
FROM R.H. TAIL, STOP &
DIRECTIONAL SIGNAL
LAMP
FROM RH
FRONT &
►
REAR
CLEARANCE ►
LAMPS
150-.8 BLK
24 .8 LT GRN
FROM END GATE
IDENTIFICATION
LAMPS
FROM R.H. SIDE
MARKER LAMP
FROM R.H. TAIL. STOP &
DIRECTIONAL SIGNAL
LAMP
150 .8 BLK
24 .8 LT GRN
RIGHT HAND
BACKUP
LAMP
TO BULKHEAD
CONNECTOR
FOR REMAINDER
OF CIRCUIT
SEE BACK-UP LAMPSUTILITY, SUBURBAN
MODELS
RIGHT HAND
BACKUP
LAMP
TO BULKHEAD
CONNECTOR
FOR REMAINDER
OF CIRCUIT
SEE BACK-UP LAMPSUTILITY, SUBURBAN
MODELS
12015024
18
24
LEFT HAND
BACKUP
LAMP
12020099
ip
CL p 'r
FRONT END GATE
IDENTIFICATION
LAMPS
12020099
LEFT HAND
BACKUP
LAMP
150-.8 BLK
150 .8 BLK
24 .8 LT GRN
24- 8 LT GRN
FROM LH
FRONT &
REAR
CLEARANCE
LAMPS
FROM L.H. TAIL. STOP &
DIRECTIONAL SIGNAL
LAMP
FROM L.H. SIDE
MARKER LAMP
FROM L.H. TAIL. STOP &
DIRECTIONAL SIGNAL
LAMP
FROM L.H. SIDE
MARKER LAMP
150 .8 BLK150 .8 BLK
SHEET METAL
GROUND
FLEETSIDE PICKUP-RPO E63
BACKUP LAM PS
SECTION A - PAGE 76
WIDE SIDE PICKUP-RPO R05
SHEET METAL
GROUND
R.H.
SIDE MARKE
LAMP
HEADLAMP
SWITCH
R.H. TAIL, STOP &
DIRECTIONAL
LAMP
TO COURT
LAMP
9 .8 BRNSPLICE 9
12015798
150 .8 BLK BACKUP
LAMP
SHEET
METAL GRN
SPLICE 150 --------12015024
9 .8 BRN
9 8 BRN-
12020099
18
24
---
9IT
19'
SPLICE 150
An
12020184
BACKUP
LAMP
C j 5 9 ---- 150-.8 BLK-----40 .8 ORN
1201
SHEET
METAL GRN
■150-.8 BLK
SPLICE 9
9 .8 BRN
9 .8 BRN
8911029
L.H. TAIL, STOP &
DIRECTIONAL LAMP
HOT AT
ALL TIMES
Vk
L.H.
SIDE MARKER
LAMP
REAR
FRONT
FUSE BLOCK
TAIL LAMPS
UTILITY, SUBURBAN
SECTION A - PAGE 77
RIGHT HAND
SIDE MARKER
LAMP
HEADLAMP
SWITCH
X
BACK UP
LAMP
9 .8 BRN-
TAIL. STOP
& DIR LAMP
m
24)
'yC JD
112
I 15 I 14 I
11
9
93
33
T | 12015798
— ■ 9 .8 BRN
9 .8 BRN
8917234
91
93
92
97
422
m
2
3
1________| [ 4 3 9 |4 2 0 ||
35 | 25 | 31 |
I
«
|
2
12015024
II
.
18
I« 0 « 1 ]-
)
X
”
J
X®
)
4 3 « | l 2 0 | 39 14 4 0 |f" “"
8917232
LEFT HAND
TAIL, STOP
& DIR LAMP
-40 .8 ORN
(3 (3 H 0
BO 0
0 0
a
si i
0 0
a 0 e §
tGN
ACC IP%
r»—n
■ATT
i- l—n
SHUNT
a
*oo
SHUNT
m
9 .8 BRN-
m
(S «««
i
BD
e
BACK UP
LAMP
0
11
>s
PW*
30
A
wsrxcr
20A I
KM)
20A
tact!
^?OA
£2
I 26A I
[~i5a"|
SIDE MARKER
LAMP
»uS*HTlfXc sTo* mXI
D§3 Q§] ©
OAUOC/IOCC
HTR A/C
*AO«
BnMN'lir
i i n lPw£rwoo
j [J3
K3
(Ml [Ml
(CM I
CHOM
o)
D 3 B^B |
■ a a
REAR
FRONT
FUSE BLOCK
TAIL LAMPS
STEPSIDE PICKUP (E62)
SECTION A - PAGE 79
HEADLAMP
SWITCH
TO COURT.
LAMP
6288424
6288424
TAIL LAMPS
EXTENDED CAB PICKUP
SECTION A - PAGE 80
FUSE BLOCK
R.H. TAIL, STOP &
DIRECTIONAL
LAMP
L.H. TAIL, STOP &
DIRECTIONAL
LAMP
R.H. TAIL, STOP &
DIRECTIONAL
LAMP
LICENSE
LAMP
12020099
z
DC
00
n r Q ift.
CO
<T)
12015024
SPLICE 150
BACKUP
LAMP
is
SHEET
METAL GRN
&e m
a
a
a
q
® m
a
>GN
_n
g) is}
ACC IPS
r-i—r
woo
r\
150 .8 BLK
SPLICE 9
9 .8 BRN
8911029
HOT AT
ALL TIMES
L.H. TAIL, STOP &
DIRECTIONAL LAMP
▼ 4
L.H.
SIDE MARKE*
LAMP
O
FRONT
FUSE BLOCK
0
LICENSE LAMP
UTILITY, SUBURBAN
SECTION A-PAGE 81
R.H.
SIDE MARKER
LAMP
Y
R.H. TAIL STOP &
DIRECTIONAL
LAMP
L.H. TAIL, STOP &
DIRECTIONAL
LAMP
L.H.
SIDE MARKER
LAMP
LICENSE LAMP
FLEETSIDE (E63)
WIDESIDE (R05)
SECTION A-PAGE 82
REAR
FUSE BLOCK
RIGHT HAND
HEADLAMP
SWITCH
1 15 1 14 I
I 12
i . ? . u £ ir ^
91
92
8917234
422
FT
CO
o
w
o
<N
2
at
93
9
33
9 8 BRN
L _ ^ _ J |4 3 9 |4 2 0 1
97
3
i
11
93
35 | 2 5 | 31 |
|
6
|
2
12015024
J
1 8 0 « |T -
4 3 « | l 2 0 | 39 l 4 4 0 | p
■ f*
0c
00
00
<T>
8917232
-40 .8 ORN
0 ED 0 0 E ®
ffi
l_ 1
0 0 (3 0 2) (5) 0
WOO
0
MAH
A'C
0i
(3 0 ffl 0 (B ® 0 ° >s
n—
n r*—
ri f-i—n
•A TT
IQ«
SHUNT
SHUNT
ACC
LPS
5A
L"
LJ~ ,J t o * 1
H o f l H oT I I m a I
a u I ht M
km
c
Bs£l G€l [p3
T 'l CTIV
OAUOC/lOtf
MTU AiC
E lIS 9
C 3 frfl j
REAR
FRONT
FUSE BLOCK
o)
LICENSE LAMP
STEPSIDE PICKUP (E62)
SECTION A-PAGE 83
HEADLAMP
SWITCH
R.H. TAIL, STOP &
DIRECTIONAL
LAMP
6288424
TO COURT.
LAMP
19-
3 i
•9 .8 BRN9 .8 BRN'
2977645
f
BACKUP
LAMP
9 .8 BRN
9 .8 BRN-
CM
Lm
_
18
1191
< r
SPLICE
9
12015024
12020099
DUAL
LICENSE
LAMPS
2977107
SPLICE
9
9 .8 BRN
2977107 2977159
9 .8 BRN
T
2977107
3
FRAME
GRN
12020184
BACKUP
LAMP
X
-40 .8 ORN-
0)
g
§
m I
is woo
B OB E)
(3 s
KW
i
m
9 .8 BRN-
IE
mm
e
HOTAT
ALL TIMES
Q
13
(B El E
ACC
IP *
PW*
_ n
SHUM?
6288424
E 9 159
D 3 B^S |
LICENSE LAMPS
PICK-UP
EXTENDED CAB PICKUP
SECTION A-PAGE 84
REAR
FRONT
FUSE BLOCK
o )
L.H. TAIL. STOP &
DIRECTIONAL
LAMP
1989 P TRUCK
SECTION B
PAGE
2-3
4
5
6
7-10
11
12
13
14
15
16
17-21
22
23
DESCRIPTION
FUSE BLOCK DETAILS
START/IGNITION (8 CYL.)
POWER DISTRIBUTION (DIESEL)
POWER DISTRIBUTION (6 CYL.)
POWER DISTRIBUTION (8 CYL.)
HEAD LAMPS & PARKING LAMPS
MARKER LAMPS
HAZARD LAMPS
DIRECTIONAL LAMPS
HORNS
WIPER/WASHER
START/IGNITION
THROTTLE BODY INJECTION
FUEL CONTROL & IDLE AIR CONTROL (8 CYL.)
PAGE
24
25-26
27
28
29
30-31
32-33
34
35-36
37
38-39
40
41
42
43
DESCRIPTION
EMISSION CONTROLS (6 CYL.)
EMISSION CONTROLS (8 CYL.)
EMISSION CONTROLS (DIESEL)
GLOW PLUGS (DIESEL)
AUTO TRANSMISSION KICKDOWN SOLENOID (M4Q)
ELECTRONIC CONTROL MODULE (ECM)-INPUTS (8 CYL.)
ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (8 CYL.)
ECM CHART (8 CYL.)
BRAKE WARNING SYSTEM
INSTRUMENT PANEL LAMPS
INDICATOR LAMPS
INSTRUMENT PANEL GAGES
BACKUP LAMPS
TAIL LAMPS
LICENSE LAMPS
SECTION B - PAGE 1
CAVITY "W "-C IR C U IT 50
IGN "O N " 2 5 A FUSED FEED
— HTR & A/C
CAVITY " I" CIRCUIT 3 9
CAVITY " A " —CIRCUIT 141
IGN "O N & CRANK" 2 0 A FUSED FEED
- AUTO TRANS
- DIESEL IND LP
- BRK WARN
LOW COOLANT IND/CHOKE LPS
FUEL PUMP FEED
IG N - "O N & A CC " —10A FUSED FEED
- RADIO
CAVITY " L " -C IR C U IT 8
PANEL LPS-5A FUSED FEED
- TILT WHEEL (32)
- W/S/WIPER SW ILLUM (42)
- TRANS IND LP
- RADIO DIAL
CAVITY "B " —CIRCUIT 1 4 0
BATTERY 1 5A FUSED FEED
- CLOCK
- CIGAR LTR
- DR JAMB SW
- DOME/CARGO LPS
5 0 -3 .0 BRN-HEATER & A/C
{C A V ITY " H " -C IR C U IT 9 3 |
9 3 -3 .0 W H T - W /S WIPERS-
E
2 5 A FUSED FEED
-
HTR
A/C
m
W/S/WIPER
W/S/WASHERS
1 4 1 -1 .0 B R N /W H T -IG N SW (ACC)
8 .5 G R A -I/P LAMPS-
CD
BATT
4 4 -1 .0 DK G R N -L IG H T SWITCH
IGN
SHUNT
3 4 0 .8 PNK/W HT—TO BULKHEAD
20A
15A
HORN/Di
IGN
"2 0 A
GAUGE
T/L LPS
A
ml>B
1
II
II
I
b h i ibh
1 4 1 -1 .0 B R N /W H T-R A D IO (ACC)
4 -3 .0 B R N -IG N SW (ON/ACC) (UNFUSED)—|
4 -3 .0 B R N -IG N SW (ON/ACC)
9 3 -3 .0 W H T - W /S WIPERS
3 -3 .0 P N K -IG N SW (ON/CRANK) (UNFUSED)
5 0 -3 .0 B RN -HEA TER & A/C
2 -3 .0 R ED -LIG H T SW (UNFUSED)
1~5/T
D id [ M/ ]
STOP/HAZ
-2 4 0 -1 .0 O R N -D O M E LAMP/HORN LAMP
D l l
4 0 -1 .0 O R N -L T SW/TAIL LPS
□
□
□
1 4 0 -1 .0 O R N -B A T T /H A Z FLASHER
t u r n bu
3 9 .8 PNK/BLK—INST CLSTR ("O N & CRANK")
o
[X] □ □
FUS/PLR
16 .8 PPL—DIR SIGNAL SW
FRONT
REAR
DIRECTIONAL
SIGNAL FLASHER
1 2 0 3 4 3 5 9 FUSEBLOCK
3 8 .8 DK B L U -T U R N & B/U LPS
i
A
B
L
P
W
H
COLOR
MALE CONN
NAT
BRN
BLK
GRN
RED
BLU
DK GRA
12004888
12004887
12004886
12004885
12004883
12004884
12004740
FUSE BLOCK (ALL EXCEPT L05)
SECTION B - PAGE 2
FUSES
12004005
12004007
12004008
12004009
12004010
12004003
12004006
12004011
AMP
COLOR
5
10
15
20
25
3
75
30
TAN
RED
LT BLU
YEL
W HT
VIOLET
BROWN
LT GRN
7 5 .8 DK B L U -B /U LP SW
3 8 .8 DK BLU-DIRECTIONAL SIG/FLASHER
CAVITY " W " - CIRCUIT 50
IGN “ O N " 2 5 A FUSED FEED
—HTR & A/C
CAVITY " I" CIRCUIT 39
CAVITY " A " -C IR C U IT 141
IGN "O N & CRANK" 20 A FUSED FEED
- AUTO TRANS
-
IGN —"ON & A C C " — 10A FUSED FEED
- RADIO
DIESEL INDLP
- BRK WARN
LOW COOLANT IND/CHOKE LPS
FUEL PUMP FEED
CAVITY " L " -C IR C U IT 8~|
PANEL LPS-5A FUSED FEED
- TILT WHEEL (32)
- W/S/WIPER SW ILLUM (42)
- TRANS IN D LP
- RADIO DIAL
CAVITY " B " - CIRCUIT 1 4 0
BATTERY 1 5A FUSED FEED
- CLOCK
- CIGAR LTR
- DR JAMB SW
- DOME/CARGO LPS
5 0 -3 .0 B RN -HEATER & A/C
CAVITY " H " -C IR C U IT 9 31
2 5 A FUSED FEED
-
W/S/WIPER
W/S/WASHERS
9 3 -3 .0 W H T - W /S WIPERS
1 4 1 -1 .0 B R N /W H T -IG N SW (ACC)
8 .5 G R A -I/P LAMPS
2 4 0 -1 .0 O R N -D O M E LAMP/HORN LAMP
4 4 -1 .0 DK G R N - LIGHT SW
3 4 0 -1 .0 ORN —(F-PUMP SW FEED)
2 -3 .0 RED
4 -3 .0 B R N -IG N SW (ON/ACC) (UNFUSED)
4 4 0 .8 ORN/BLK STR (E C M -B A T FEED)
5 0 -3 .0 BRN -HEA TER & A/C
1 4 1 -1 .0 B R N /W H T-R A D IO (ACC)
3 -3 .0 P N K -IG N SW (ON/CRANK) (UNFUSED)
4 0 -1 .0 O R N -L T SW/TAIL LPS
2 -3 .0 R E D -L IG H T SW (UNFUSED)
1 4 0 -1 .0 O R N -B A T T /H A 2 FLASHER
9 0 6 -.8 PPL—(CRK SIGNAL TO ECM)
6 .8 PPL
3 9 .8 PNK/BLK—INST CLSTR ("O N & CRANK")
3 8 - 8 DK BLU-DIRECTIO NAL SIG/FLASHER
1 6 -.8 PPL—DIR SIGNAL SW
3 8 .8 DK B L U -T U R N & B/U LPS
FRONT
DIRECTIONAL
SIGNAL FLASHER
1 2 0 3 4 3 5 9 FUSEBLOCK
4 3 9 - 8 PNK/BLU STR (ECM IGN)
7 5 .8 DK B L U -B /U LP SWITCH
4 -3 .0 B R N -IG N SW (ON/ACC)
1
A
B
L
P
W
H
COLOR
MALE CONN
NAT
BRN
BLK
GRN
RED
BLU
12004888
12004887
12004886
12004885
12004883
12004884
12004740
DK GRA
FUSES
12004005
12004007
12004008
12004009
12004010
12004003
12004006
12004011
AMP
COLOR
5
10
15
20
25
3
75
30
TAN
RED
LT BLU
YEL
W HT
VIOLET
BROWN
LT GRN
9 3 -3 .0 W H T - W /S WIPERS
FUSE BLOCK (L05)
SECTION B - PAGE 3
START/IGNITION LT9-V8
BODY S T Y L E -4 2
SECTION B - PAGE 4
FRONT
REAR
□
e
GROUND
+■
—
RIGHT HAND
BATTERY
+
---LEFT HAND
BATTERY
□
□
C3 C3
i
B
FUSE BLOCK
□
o )
HOT
AT
ALL
TIMES
C 3 o o [“ ^
REAR
POWER DISTRIBUTION-LL4 DIESEL
SECTION B - PAGE 5
POWER DISTRIBUTION L25
BODY STYLE- 4 2
SECTION B - PAGE 6
FRONT
FUSE BLOCK
REAR
POWER DISTRIBUTION LE8 V -8
BODY S T Y L E -3 2
FUSE BLOCK
REAR
SECTION B - PAGE 7
POWER DISTRIBUTION LT9, V -8
BODY STYLE- 4 2
SECTION B - PAGE 8
FUSE BLOCK
REAR
■32 BLK
(BATT CABLE)
FRONT
FUSE BLOCK
REAR
POWER DISTRIBUTION L 0 5 - V 8
SECTION B - PAGE 9
TO
CLUTCH
SWITCH
(MAN TRANS)
OR
TO
NEUTRAL
START
& BACK-UP
SWITCH
(AUTO TRANS)
f
TO AIR
SWITCH &
M 4 0 KICKDOWN
RELAY
SHEET
METAL
GROUND
POWER DISTRIBUTION
P42 & L05 V-8 TBI DRIVE AWAY
SECTION B - PAGE 10
ENG INE
GROUND
RIGHT-HAND
HIGH-LOW
HEADLAMP
RIGHT-HAND
SIDE MARKER
LAMP
2 9 7 3 3 8 6 (P32)
12 0 3 4 3 7 2 (P42)
LAMP—P32
(32/E 33 ONLY —P42)
TO INSTRUMENT
CLUSTER
6294015
1 1 -1 .0 LT GRN
12 .8 T A N -------
Q)
15 1 -3 .0 BLK
FRAME
GROUND
SHEET METAL
GROUND
SPLICE 150
150-.8 BLK (P42 ONLY)
150 .8 BLK (P42 ONLY)
\
150-.8 BLK (P42 ONLY)-
FRAME
GROUND
ENGINE
GROUND
Q)
■4-GRD STRAP (P42 ONLY)---------------- 0 1
9- 5 BRN
8 BLK
R.H. PARK &
DIRECTIONAL
LAMP
O
IO
O
II)
°®
r
■9- 8 BRN-
SPLICE
9
K
.8 BLK
L.H. PARK &
DIRECTIONAL
LAMP
z
1 2 0 3 4 3 7 2 (P42)
2 9 7 3 3 8 6 (P32)
z
oc
m
ID
oc
m
oo
cn
cn
1 1-1.0 LT GRN1 1-1.0 LT GRN12-.8-T A N ------12-.8 TAN ------
1 5 0 -.8 BLK (P42 ONLY)-
LEFT-HAND
HIGH-LOW
HEADLAMP
151-.8 BLK
SHEET
METAL
GROUND
1 5 1 .8 BLK
SHEET
METAL
GROUND
TUVJ
6294015
LEFT-HAND
SIDE MARKER
LAMP
LAMP —P32
(32/E33 ONLY - P42)
8900855
HEAD LAMPS & PARKING LAMPS
SECTION B - PAGE 11
R.H.
SIDE MARKER
LAMP
R.H.
SIDE MARKER
LAMP
SHEET
METAL
GROUND
6294015
1151-.8 BLK
12004628
R.H. PARK &
DIRECTIONAL
LAMP
R.H. TAIL.
STOP, &
DIRECTIONAL
LAMP
HEADLAMP
SWITCH
•15-.5 DK BLU
SPLICE 9
9 .8 BRN-
R.H.
LICENSE
LAMP
9 .8 BRN
9- 8 BRN
■9-1.0 BRN
9 .8 BRN
l/P
SPLICE 9
8917234
L.H. PARK &
DIRECTIONAL
LAMP
6288566
/
6288565
-9 .8 BRN-------
G
2t
— - r j j
r ~
\
8917233
6
3
3 50
39
1------------- l ( 9 3 l |
30 | 33 j
I 35 I
TO l/P
CLUSTER
CONN.
2
2
3 1 |4 ,9 |
8917232
1
H
I
-► L.H. TAIL.
STOP, &
DIRECTIONAL
LAMP
I
ll3 0 jjjp *
OB IB 03 0
0
IQ
ID ID CD Q
E) (D ID
m*
(D DB □
SECTION B - PAGE 12
0
150-.8 BLK
09 CD E
•ATT
)OI«
ACC
•HUNT
•H U N T
iP t
BA
6294125
FibaI R oa] Roa] riojri
6294015
MARKER LAMPS
L.H.
LICENSE
LAMP
w s fw
L jS?J
HUH
□□
L.H.
SIDE MARKER
LAMP
dn
FUSE BLOCK
□ □
D3 C3
0
FRONT
SHEET
METAL
GROUND
L&
g
p
REAR
E
o)
r ^
0
L.H.
SIDE MARKER
LAMP
RH
SIDE MARKER
LAMP
DIRECTIONAL
SIGNAL SW
LAMP—P32
(E32/E33 ONLY —P42)
1
r f l -
17 1.0 W H T-----
i /
r
P
19 -1.0 DK GRN-
1 ;
N
-18 1.0 YEL------■ 10
-
L
if.
2 7 -1 .0 BRN —
15 .5 DK BLU
PROVISIONS FOR
RH TAIL. STOP
& DIRECTIONAL
LAMP (P32)
? J - l
6294015
14 .5 LT BLU-
7
11
X
--n
H
14
R.H. TAIL. STOP
& DIRECTIONAL
28
/I
J:
1°
LAMP (P42)
—
12004147
R.H. PARK &
DIRECTIONAL
LAMP .8 ppl
X
> o
O r«- ri.
hL fM
15 .5 DK BLU
RIGHT
150 .8 BLK
FROM INST
CLUSTER CONN
TURN SIG.
INDICATOR
LAMPS
12004215
FROM OIL
PRESS GAUGE
14
14 .5 LT BLU
150 .8 BLK —
FROM IGNITION
SWITCH
uj
Q
>
O
CO
LEFT
150
FROM PARKING
BRAKE SWITCH
2984855
6294125
^
GROUND
1 8 -2.0 YEL
L.H. PARK &
DIRECTIONAL
LAMP
'8
19 2 .0 DK GRN
2 7 -1 .0 BRN----PPL
eB
< r
P
8917234
l/P
f
1
fNf
-
I 24
9
12
6294015
15
------------ 1
14 .5 LT BLU
e
3
3 &0
39
1
’ U
1
14
11
,1 3B 1
2
□ □I
I tI i ----- 1 7 -1 .0 WHT
L r U | 9 3 ,l
30 j . , 3
|
1
2
1
| l3 0 | r -
1
PROVISIONS
FOR L.H. TAIL.
STOP &
DIRECTIONAL
LAMP (P32)
| [ 14o H------1 4 0 -1 .0 ORN-
'I —
^
8 BLK-
9 1
29
1
©
STOP
LAMP
SWITCH
0
G3 ( E ) " * ”
0
E (B [D B (5 CD 0
MT*
n >S
(B B m ClI B □ 0
u
QD (B m
B
•ATT
<Gft
SHUNT
SHUNT
B
ACC
L.H. TAIL, STOP
& DIRECTIONAL
LAMP (P42)
l*S
n —r-i r-»— r-! r-»—r i f---------1
1r
5A
Lj-lJ Lj—lj SsTTte11------ 1
RiTI fzoifl (ioaI
L.H.
SIDE MARKER
LAMP
8917232
LAMP —P32
(E32/E33 ONLY —P42)
■15 .5 DK BLU• 14 .5 LT BLU-
m
A
h^Tsd
HAZARD
FLASHER
HGSr1
T l I* *
GAUGf
DC
...S r- 14
K
11
r
8917233
1 4 0 -1 .0 ORN-----1 4 0 -1 .0 ORN
□□□□
i n
a
s
FRONT
a
r a
0
REAR
o
HAZARD LAMPS
SECTION B - PAGE 13
RH
SIDE MARKER
LAMP
DIRECTIONAL
SIGNAL SW
LAMP—P32
(E32/E33 ONLY —P42)
19-1.0 DK GRN■18-1.0 YEL16-.8 PPLPROVISIONS FOR
RH TAIL. STOP
& DIRECTIONAL
LAMP (P32)
-15 .5 DK BLU
6294015
R.H. TAIL, STOP
& DIRECTIONAL
LAMP
A
(P42)
R.H. PARK &
DIRECTIONAL
LAMP .8 PPL
L.H.
SIDE MARKER
LAMP
LAMP—P32
(E32/E33 ONLY —P42)
□
£
h*
-1
00
PROVISIONS
FOR L.H. TAIL,
STOP &
DIRECTIONAL
LAMP (P32)
6294015
L.H. TAIL, STOP
& DIRECTIONAL
LAMP
14-.5 LT BLU
<P42)
DIRECTIONAL LAMPS
SECTION B - PAGE 14
DIRECTIONAL
FLASHER
HORN RELAY
I
r o
12004267
HORN
1 /
[
19
f
2 L I
■ 16 -
2 9 J (_28
I2401
p
_
'
19
N
1
M
I ,s
I
1 16
? 7
K
If.
J
14
H
28
G
S
•2 8 .5 BLK
r
7
i
1 21
I 15
II
2 tt
F
D
\
1.0 DK GRN
12004267
12004147
A
\ XE
29
29 |
12004201
12004148
DIRECTIONAL
SIGNAL SW
12004267
PROVISIONS
FOR DOME
LAMP
■29-1.0 DK GRN
2965981
12004267
TO
HEADLAMP
SW
HORN
E
HORN/DIM
15A
(D □
0
(5) Q] B * i *
III ID □ B E (D ID
(B B H)
•ATT
n —n
SHUNT
MT*
«N
n —n
B ID 0
(HI
o
u
*CC
SHUNT
m
o s ® © ®
11
14
IB
TT
TT
a
12
□
□
□
□
C 3 D 3
[X I □ □
8917233
FRONT
FUSE BLOCK
REAR
HORNS
SECTION B - PAGE 15
8 .5 GRA
WIPER,
WASHER
SWITCH
LAMP
■150 8 BLK
SHEET
METAL
GROUND
8905381
OFF LO
150 .8 B L K ----------------------- — I jb o ]
- 9 4 .8 PNK
■9 1 -.8 GRA
HI
ISO
E>
E
m
1 91 I I 92 I
91
92
WINDSHIELD
WIPER
WASHER
SWITCH
94
92 .8 PPL ■
92- 8 PPL-
WIPER
MOTOR
9 1 . 8 GRA-
9 4 .8 PNK
93 .8 W HT-
WASHER
MOTOR
FRONT
WIPER/WASHER
SECTION B - PAGE 16
FUSE BLOCK
REAR
r
,
ru ___ n
+
f-i—r
-
BATTERY
(< 2 -
START (IGNITION L 2 5 - 6 CYL.
BODY STYLE- 4 2
FRONT
REAR
SECTION B - PAGE 17
—>
w N —
4
i* I T ' - * --------------►!----------- — « ----------- f c -
V :
V—
J
1
-•
- |
'J J B
%
■32 BLK (BATT CABLE) -
START/IGNITION LE8-V8
BODY S T Y L E -3 2
SECTION B - PAGE 18
j-i--------n
+
—
—
BATTERY
1\
IW
P
iil
WoTIhs
□
FUSE
BLOCK
\2 _
FRONT
□
□
□
C3 □ □
REAR
^
a
r
a
^
—
- °
RED (P32) THERMO HW
\ v v ' — 2 - 1.0 RED-THERMO HW
CM
f0
HOT
AT
ALL
TIMES
32 BLK
— n --------n —
+
RIGHT HAND
BATTERY
GROUND
C3 D3
_ - n ____ □ __
+
LEFT HAND
BATTERY
o)
CDODJ
FUSE BLOCK
START/IGNITION LL4 DIESEL
SECTION B - PAGE 19
START/IGNITION - L05-V8
SECTION B - PAGE 20
TO
CLUTCH
SWITCH
(MAN TRANS)
OR
TO
NEUTRAL
START
& BACK-UP
TO PARK/
NEUTRAL
RELAY
(AUTO ONLY)
2 -5 .0 RED-
BF
8911921
TO CLUTCH
START SWITCH
(MAN TRANS)
OR
NEUTRAL SAFETY
SWITCH
(AUTO TRANS)
FRONT
FUSE BLOCK
REAR
START/IGNITION L 05 -V 8
P42 & L 05 -V 8 TBI DRIVE AW AY
SECTION B - PAGE 21
OXYGEN SENSOR
4 3 9 -1 .0 PNK/BLK
4 1 2 -.8 PPL-
12018791
GROMMET
12020107
TO COOLANT
TEMP SENSOR
THROTTLE
POSITION
SENSOR
SPLICE
45 2
4 1 2 .8 PPL
4 1 2 -.8 PPL
4 5 2 .8 BLK
4 5 2 .8 BLK
4 5 2 .8 BLK
4 1 7 .8 DK BLU
4 1 7 -.8 DK BLU
-4 1 7 -.8 DK BLU —
4 1 6 - 8 G R A ----
■4 1 6 -.8 GRA --------
4 6 7 .8 LT BLU —
. 4 6 7 .8 LT BLU —
4 6 7 .8 LT BLU —
4 6 7 - 8 LT B LU ----
4 6 8 .8 LT GRN —
4 6 8 .8 LT GRN —
4 6 8 .8 LT GRN —
4 6 8 .8 LT GRN —
4 3 9 -1 .0 PNK/BLK
4 3 9 -1 .0 PNK/BLK-
452
4 1 6 -.8 G R A ----
410
SPLICE
416
12066287
SPLICE
467
SPLICE
468 m
TO MAP
SENSOR
12020753
ELECTRONIC
CONTROL MODULE
CONNECTORS
INJECTOR 1
4 3 9 -1 .0 PNK/BLK
12020764
4 6 7 .8 LT BLUTO EVRV
SOL.
TO HALF
FUNCTION
ESC
SPLICE
439
E
(D CD 0
ffl 03 I E * »»
4 3 9 -1 .0 PNK/BLK
E
(B CD 0 E) CD ID
MYR
r«__n
SHUNT
•GN
ACC
I >8
4 6 8 -.8 LT GRN
SHUN?
[ W
]
Q ba]
p o *] p j i n
III E 0
• ait
ENGINE
E B E
(nP ©
— 4 3 9 -1 .0 PNK/BLK
o>£
o
(D
O
&
w
0»
Q IOu
*
<o
s o
>•At*>
cj G
(II
t©<0
c* M
C
O
Jo
ECM 1
10 AMP
FRONT
4 3 9 .8 PNK/BLK
THROTTLE BODY INJECTION (L05-V8)
SECTION B - PAGE 22
8917232
r w i
I® ®
M S
Si
|
GROMMET
12020107
TO ECM
FUEL
PUMP
RELAY
STEPPER
MOTOR
§
441
:
442
r ~
4 44
IDLE AIR CONTROL
1201579s
GROUND
ALTERNATOR
BRACKET
SYSTEM
GROUND
NO. 2
(LH REAR
CYLINDER
HEAD)
FUEL PUMP
OIL PRESSURE
SENSOR &
SWITCH
12048390
FUEL CONTROL &
IDLE AIR CONTROL —L05
SECTION B - PAGE 23
AIR
DIVERT
SOLENOID
(NA5)
AIR
CONTROLLER
(NA5)
IDLE
STOP
SOLENOID
EMISSION CONTROLS —L25
SECTION B - PAGE 24
ENGINE
GROUND
RIGHT HAND
AIR
DIVERT
SOLENOID
©
S
h ~
150 .8 BLK
9 3 6 .8 YEL
3 9 .8 PNK/BLK
12015792
(NA5)
NB2
l/P
39 .8 PNK/BLK-
ENGINE
I
n—
rn -
F*
SPLICE
93 6
0:
9 3 6 .8 YEL
I
9
ij
7
1
l f.>
I
II
II
I f 33!
12 0
39 )L ^ °1
11
14
i
^
:
-
A
39
A
□ Q J jD C Z D d
aI
29
o
...
b
12040753
i
I
3 3
I
i
|
1 1 1
| J p
l ..J r
2
,
8917253
AIR DIVERT SOL
AIR
CONTROLLER
(N A 5 )
-9 3 6
-3 9
GROUND
-1 5 0
TACH TO COIL
NB2.
- 1 5 0 .8 BLK -
IGNITION SWITCH
CHECK ENGINE LP
AIR SW SOLENOID
SPLICE
39
■39 .8 PNK/BLK
4 1 9 -.8 BRN/WHT-
— 121 .8 WHT -
t
n
-121
-4 1 9
-4 3 6
----------------
8917232
TO CHECK
ENGINE
LAMP
(NA5)
3 9 .8 PNK/BLK —
-4 1 9 .8 BRN/WHT-
4 1 9 .8 BRN/WHT— 4 3 6 .8 BRN -----NB2 |
1
1
l-
12040947
39 .8 PNK/BLK
5
00
DISTRIBUTOR
CONNECTOR
m
d
0
1
1
1
8911979
z
oc
CO
op
(b
(*>
^
AIR
CLEANER
TEMPERATURE
SWITCH
0
->
uj
>
00
<b
CO
O)
1
1
1
i ---------------
NB2
L
ID CD E ID “
n
8911288
00
o
o
[9 3 6 |
at
6294828
ICK
ACC
SHUNT
f V
°
LPS
i
iui
>
121 .8 WHT
ENGINE
SPEED
SWITCH
RELAY
(D 0 * ! *
0
0 H El ID 0
ENGINE
SPEED
SWITCH
SOLENOID
NB2
LEFT HAND
AIR
DIVERT
SOLENOID
0
CM
-121 .8 W H T -----------
^i
2
°-
00
o>
m
I
£ r
.
- I
_i
900
’
I
FRONT
FUSE BLOCK
‘ “ U *
8917542
REAR
9 3 6 .8 YEL-----3 9 .8 PNK/BLK
_J
12015792
ANTI-DIESEL
SOLENOID
(MAN TRANS
ONLY)
EMISSION CO NTRO LS-LT9
8911256
SECTION B - PAGE 2§
BODY
GROUND
RIGHT HAND
AIR
DIVERT
SOLENOID
(NA5)
AIR
DIVERTER
SYSTEM
RELAY
(NA5)
AIR
DIVERTER
MODULE
(NA5)
LEFT HAND
AIR
DIVERT
SOLENOID
EMISSION CONTROLS-LE8
SECTION B - PAGE 26
FAST IDLE
SOLENOID
12004267 I n
FUEL
PRESSURE
WATER
IN FUEL
SENSOR
FUEL
HEATER
FUEL SHUT
OFF VALVE
EMISSION CONTROLS!DIESEL 1 -L L 4
TO SPLICE 39
SECTION B - PAGE 27
CD
FUEL SHUT
OFF VALVE
GLOW PLUGS —LL4 DIESEL
SECTION B - PAGE 28
12020274
TRANSMISSION
KICKDOWN
SOLENOID
SPLICE 4 2 2
4 2 2 .8 TAN/BLK-
4 2 2 .8 TAN/BLK
TO ALDL
l/P
TO AIR
SWITCH
55 .8 ORN
2984092
KICKDOWN
RELAY
12020753
39 .8 PNK/BLK —
3 9 .8 PNK/BLK —
4 2 2 .8 TAN/BLK
55 .8 O RN--------12052287
KICKDOWN SWITCH
TRANSMISSION
KICKDOWN
SOLENOID
FOR LE8, LT9, L25 ONLY
TO OIL
PRESSURE
GAUGE
FOR LE8, LT9, L25 ONLY
(BODY STYLE
' 4 2 ONLY)
-------- 55 .8 ORN —
r j i:---------------------------- r
39 .5 PNK/BLK
------------------55 .8 O R N ---------------------
x~ 4
I
7
I
I
SPLICE 39
55 .8 ORN------
(BODY STYLE
32 ONLY)
GROMMET
TO l/P
CLUSTER
CONNECTOR
l/P
(S ID CD 8 ID G3 03***
8911781
(BODY STYLE
4 2 ONLY)
GO ID ID mu
Q E (D 09
IB E CD
•ATT
H>N
0
_
B □ E u
ACC
LPS
55 .8 ORN-
7
9
(BODY STYLE
32 ONLY)
12
15
29
1
1^
1
14
11
□ □ □ □
3 0 | 33 .
I'i°l
* - d
KICKDOWN
SWITCH
TRANSMISSION
KICKDOWN
SOLENOID
LL4 DIESEL ONLY
^
55
12052641
FOR LL4 DIESEL ONLY
LI
C 3 0 D
FRONT
REAR
FUSE BLOCK
U 39
8917232
f= 1
\
g
AUTOMATIC TRANSMISSION
KICKDOWN SOLENOID (M 40)
TO WATER IN
FUEL SENSOR
TO FUEL HEATER
39 .8 PNK/BLK -
HOT IN
START AND
RUN
3 9 -.5 PNK/BLKSPLICE 39
2984092
□
r
r
TO COLD
ADVANCE
TEMPERATURE
SWITCH
5 5 .8 ORN
=
LE8, LT9, L25, LL4
SECTION B - PAGE 29
THROTTLE
POSITION
SENSOR
COOLANT
TEMP
SENSOR
E.S.C.
SENSOR
E.S.C.
HYBRID
FUNCTION
OXYGEN
SENSOR
12015791
ELECTRONIC CONTROL M O DULE-INPUTS
L05-V 8
SECTION B - PAGE 30
■450-1.0 BLK/WHT ■ 439-1.0 PNK/BLK
-4 3 9 -1 .0 PNK/BLK -
SPLICE 4 4 0
-4 4 0 -1 .0 ORN
T
4 4 0 -1 .0 ORN
-4 4 0 -1 .0 ORN-
■440 1.0 ORN
-4 4 0 -1 .0 ORN-
GROMMET
■485- 8 BLK
12020107
TO
SYSTEM
CHECK
LAMP
4 5 5 - 8 PPL-
-4 5 5 .8 PPL
-4 3 2 - 8 LT GRN-
— 4 3 2 .8 LT GRN
12020753
4 1 7 -.8 DK BLU-
■41 7- 8 DK BLU-
4 5 2 - 8 BLK -
■416 .8 GRA-----
-4 1 6 8 GR A -----
■437 .8 BRN■451 .8 WHT/BLK -
-4 1 0 .8 YEL
■410 .8 YEL-
-4 5 2 .8 BLK-
■452- 8 BLK
■ 4 6 1 .8 ORN-------4 1 0 .8 YEL--------4 3 2 - 8 LT GRN
4 8 5 .8 BLK-
•4 8 5 - 8 BLK-
■412-.8 PPL-
4 1 2 .8 PPL-
TO ECM
•4 1 7 .8 DK BLU■416 .8 GRA-----
-4 8 6 .8 BRN
4 5 0 -1 .0 BLK/W HTFROM EVRV
SOLENOID
•4 5 0 -1 .0 BLK/WHT •
FROM FUEL
PUMP
RELAY
GROUND
ALTERNATOR
BRACKET
n
z
■440-1.0 ORN
4 3 7 .8 BRN-
■437 .8 BR N ---------■ 450-1.0 BLK/WHT
■ 450-1.0 BLK/WHT-
"‘"''S P LIC E 4 5 0
■ 450-1.0 BLK/WHT-
*yx
■450-1.0 BLK/WHT -
-► CRANK
DISC.
FUSED
4 1 2 .8 PPL■413-.8 TAN-
■413 .8 T A N ----------
-4 5 5 .8 PPL------------4 5 0 -1 .0 BLK/WHT■450-1.0 BLK/WHT-
SYSTEM
GROUND NO. 2
n
z
■486 .8 BRN----------
(LH REAR
CYL
HEAD)
B
A.L.D.L.
OB E l @
®
[D 0 ^
GD 00 CD H
E
0
0
GD G3 CD B
□
0
E
fo
SHUNT
SHUNT
C 3
[ g ]
a
oS
|5 A
(drrW
■ 4 6 1 .8 ORN-
VEHICLE
SPEED
SENSOR
HORN OW
ION
D 2Q
RADIO
K ] K ] B§]
GROUND
SPEED SENSOR
4 5 0 -1 .0 BLK/WHT -
■451-.8 WHT/BLK-
4 3 7 .8 BRN----------
■450-1.0 BLK/WHT-
15300027
t
12020043
Tl
IPs
GAuGI
M1H
PuMP
HVb
EMI © t Z D K ]
Co J<G^] [Ml
/ 1 C __________
= 3 H
ms
.1
ECM-I
10 AMP
FRONT
FUSE BLOCK
REAR
-4 4 0 .8 ORN-4 3 9 .8 PNK/BLK-
■440 .8 ORN-4 3 9 .8 PNK/BLK-
ELECTRONIC CONTROL M O DULE-INPUTS
L05-V8
SECTION B - PAGE 31
ELECTRONIC
SPARK
TIMING
E.V.R.V.
AIR
SWITCH
FUEL
PUMP
RELAY
FUEL PUMP
OIL PRESSURE
SENSOR &
SWITCH
12048390
ELECTRONIC CONTROL M ODULE-O UTPUTS
L05-V 8
SECTION B - PAGE 32
TO OIL
PRESS GAUGE
TO ECM
ELECTRONIC CONTROL MODULE
L05-V8
4 3 9 - 8 PNK/BLK
SECTION B - PAGE 33
CIRCUIT WIRE
NO.
SIZE
465
*
*
.8
COLOR
CAVITY
DK GRN/WHT
A1
A2
A3
A4
A5
A6
A7
A7
A8
A9
A 10
A11
A 12
FUEL PUMP RELAY DRIVE
NOT USED
NOT USED
EVRV
SYSTEM CHECK LAMP
12V IGNITION FUSED
M 4 0 KICKDOWN RELAY
UPSHIFT M A N -O N L Y
SERIAL DATA
ASS Y LINE DIAG/LINK
SPEED SENSOR
5V SYSTEM RETURN A
SYSTEM RETURN
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
12V BATTERY FUSED
ELEC FUEL PUMP FUSED FEED
DISTRIBUTOR REF LOW
NOT USED
DISTRIBUTOR REF HIGH
NOT USED
SPARK RETARD CONTROL
NOT USED
NOT USED
PARK/NEUTRAL SWITCH
NOT USED
NOT USED
435
419
439
422
456
461
451
437
452
450
.8
.8
1.0
.8
.8
.8
.8
.8
.8
1.0
GRA
BRN/WHT
PNK/BLK
TAN/BLK
TAN/BLK
ORN
WHT/BLK
BRN
BLK
BLK/WHT
440
120
453
1.0
2 .0
.8
ORN
TAN/WHT
BLK/RED
430
.8
PPL/WHT
485
.8
BLK
434
.8
ORN/BLK
DESCRIPTION
CIRCUIT WIRE
SIZE
NO.
COLOR
436
444
443
441
442
.5
.8
.8
.8
.8
BRN
LT GRN/BLK
LT GRN/WHT
LT BLU/WHT
LT BLU/BLK
906
410
432
.8
.8
.8
PPL
YEL
LT GRN
417
416
468
440
.8
.8
.8
1.0
DK BLU
GRA
LT GRN
ORN
450
455
1.0
.8
BLK/WHT
PPL
423
424
413
412
.8
.8
.8
.8
WHT
TAN/BLK
TAN
PPL
468
467
467
.8
.8
.8
LT GRN
LT BLU
LT BLU
AUTO TRANS ONLY
ELECTRONIC CONTROL MODULE
L05-V 8 TBI
SECTION B - PAGE 34
CAVITY
DESCRIPTION
C1
C2
C3
C4
C5
C6
C7
C8
C9
C 10
C11
C12
C13
C 14
C15
C16
NOT USED
AIR SW SOLENOID
STEPPER COIL B LOW
STEPPER COIL B HIGH
STEPPER COIL A HIGH
STEPPER COIL A LOW
NOT USED
NOT USED
CRANK DISCRETE FUSED
COOLANT TEMPERATURE
MANIFOLD ABSOLUTE PRESS
NOT USED
THROTTLE POSITION SENSOR
5V SENSOR REFERENCE
INJECTOR B DRIVE
1 2 V BATTERY FUSED
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D 14
D15
D16
SYSTEM RETURN
5V RETURN A
NOT USED
HEI SPARK TIMING
HEI BYPASS
OXYGEN SENSOR LOW
OXYGEN SENSOR HIGH
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
INJECTOR B DRIVE
INJECTOR A DRIVE
INJECTOR A DRIVE
INSTRUMENT
PANEL
CLUSTER
CONNECTOR
SEE PAGE
BRAKE
PRESSURE
WARNING
SW
LE8, L25
(BODY STYLE
42 ONLY)
LL4 (ALL BODY
STYLES)
LE8, L25
(BODY STYLE
42 ONLY)
LL4 (ALL BODY
STYLES)
33 .5 TAN/W HT-
BRAKE WARNING SYSTEM
SECTION B - PAGE 35
—,
FOR CONTINUATION OF WIRING
| j— SEE BRAKE WARNING SYSTEM
8911149
is o
6294468
LOW
VACUUM
SWITCH
<LL 4
ONLY)
7=v_
15 0 .8 BLK
3 3 .8 TAN/WHT
12015792
PARK
BRAKE
SWITCH
150 .8 BLK
■3 3 .8 TAN/W HT
co
HOT IN
START AND
RUN
LL4 ^
ONLY
DIODE
12 0 0 4 8 8 8
GROMMET
8911217
HYDRO­
BOOST
PRESSURE
SWITCH
!
YS
8 6 0 .8 YEL
®
EJ QD ID B S ID
3 3 .8 TAN/W HT
E E CD 0 E CD IB
***«
IB
^
E QD 03 65 E GD DE) >s
9 6 6 .8 T A N ------■1 5 0-.8 B LK -------
12004827
TL
QAUGf
IGN
20 AMP
HT*
ffEfl
C3
hop
□
□
0
0
C3 □ D
FRONT
860
FLOW
SWITCH
)
FUSE BLOCK
8 6 0 .8 YEL9 6 5 .8 BLK/YEL6288440
W\
GROUND
150 .8 BLK150 .8 BLK
SECTION B - PAGE 36
9 6 5 .5 WHT
' CAPAC/DIODE LEAD
LL4
ONLY
-9 6 5 .8 BLK/YEL8900655
BRAKE WARNING SYSTEM
(RPO UJ1 FOR B3D)
39 .8 PNK/BLK-
ALARM
8905825
REAR
ILLUM
TRANSMISSION
DIAL LAMP
SOCKET
ILLUM
0
WIPER/WASHER
SWITCH LAMP
(LE8, LL4 ONLY)
ILLUM
HIGH BEAM
0
89 0 5 3 8 1
TTo
BRAKE
0
0 ^
150 .8 BLK-
l 9 4 l
1
j
1
91
LO
,
150
11
L T5J0J1
1
| '
--------- 1< »
H1
!J
(>
r
....— I
|
il
WINDSHIELD
WIPER
WASHER
SWITCH
1 91 1 1 9 2 1
SHEET
METAL
GROUND
8 9 1 /3 1 0
--- o
o
pJ -j-ki
18 1i" i
1301 i , i
M
11 5 0 1
l39l 1 1
r1- 11{ 35~]
1 39 1 1
* 1 —
1
h -
O
□
QD
HEADLAMP
SWITCH
12004885
m
1 2 0048 85
8 .5 GRA-
-8 .5 GRA-
QH
CD
2984792
O B TS 0 09
EJ to BMD "
°
4 4 -1 .0 DK GRN
j g j i^ j [ g ]
n in ®
d §]
© O S
CX) D 3
a m
□□□□
cn
o '
a c
C=G C3
B C=3 □ □
REAR
FRONT
FUSE BLOCK
HOT WITH
LAMPS IN
PARK OR
HEADLAMPS
150 .8 BLK-
l/P
GROUND
INSTRUMENT PANEL LAMPS
SECTION B - PAGE 37
■419-.8 BRN/WHT------------------------------------------------------ ^
TO ECM
BRAKE
PRESSURE
WARNING
SWITCH
11
HI
33 .8 TAN/WHT
DIMMER
SWITCH
4
14]
BH
10
r .
12
L
OIL
PRESSURE
SWITCH
8900855
9 3 1 . 8 DK BLU
139 .8 PNK/BLK
9 3 1 -1 .0 DK BLU'
8900420
2977253
4 1 9 -1 .0 BRN/W HT'
■39- 5 PNK/BLK'
■ 3 3 .5 TAN/WHT
33 .5 TAN/WHT
12004888
m
m b
s
b
m
e
***
0
IS ID ID B Q Q 19
MT»
QD H) m
ft) E
•ATT
ION
n __ i“ l
f ! — r- |
IS A
20A
SHUNT
ACC
SHUNT
□
E
Q
><
IPS
p__i
I SA
TO DISTRIBUTOR
GAUOK
□
1SA
□
□
□
0 aD D
INDICATOR LAMPS
SECTION B - PAGE 38
FRONT
FUSE BLOCK
REAR
11-.5 LT GRN
(ST I I RING COL
DIRECTIONAL
SIGNAL SW
SWITCHESI
T~o
SF
•16 .8 PPL-
T
(LE8)
0
(LE8,
-N A 5 )
12004215
ILLUM
0
HIGH BEAM
0
I
TO l/P
CONN
CHECK
ENGINE
LAMP
ILLUM
©
■27-1.0 BRN-
CHOKE
WARNING
LAMP
ILLUM
0
CHECK
ENGINE
LAMP
(L05)
8905381
BRAKE
H O T )*'
0
12004147
8905381
LEFT
TURN
SIGNAL
LAMP
0
RIGHT
TURN
SIGNAL
LAMP
6294125
■15 .5 DK BLU
13 9-.8 PNK/BLK
■14 .5 LT BLU
L05
ONLY
-9 3 1 -1 .0 DK BLU
LT9,
El
TO KICK
E3
ONLY | DOWN SW *+
BUr~l
■419-1.0 BRN/WHT-
— 4 1 9 .8 BRN/WHT
TO PARK/NEUTRAL
RELAY
L0 5
ONLY
L
TO FUEL CYCLER
MODULE
-3 9 .5 PNK/BLK-
■39- 5 PNK/BLK■39- 5 PNK/BLK
) QTJ
I
QD
GD
y q S
-3 9 .5 PNK/BLK-3 3 .5 TAN /W H T-
■33 .5 TAN/WHT33 .5 TAN/W HT-
-3 3 .5 TAN/W HT-
m
n
Qso}
□
dh
■33- 5 TAN/W HT-
■ 3 3 .5 TAN/WHT-
2984792
T
° ° 1------o i i—
1 5 0 .8 BLK-
CT3 33
o
-•
o
° ^
o ii *
—i
IGNITION
SWITCH
o io o o •-
<
4
l— I
PARK
BRAKE
SWITCH
OR
OPTION
J> r t j x> Vt
1 5 0 -3 .0 BLK
•11 -.5 LT GRN-
INDICATOR LAMPS
SECTION B - PAGE 39
COOLANT
TEMP
SWITCH
COOLANT
TEMP
SENDER
METAL
TEMP
SWITCH
OIL
PRESS
SENDER
FUEL PUMP
OIL PRESS
SENSOR & SW.
ILLU M
ILLUM
( f ) (D Ct)
6288704
12045896
INSTRUMENT PANEL GAGES
SECTION B - PAGE 40
REAR
FRONT
FUSE BLOCK
ILLUM
H IG H B E A M
FUEL PUMP
BRAKE SW.
TRANSMISSION
BACK-UP
LAMP SWITCH
0
IS IS CD B E (D 0 " * *
0
(D ID □ B E Q E <
MT*
ION
ACC
I
Ci
ID (5 ID f t E ID E
•ATT
(AUTO TRANS
ONLY)
I
MANUAL
TRANSMISSION
ONLY
IPS
SHUNT
[b A
R oTI
l CTj
Roa]
4 ^
2
[ 20* ]
T O r1
2 9 7 3 4 0 7 |( 75 || 24 |
HOT IN
START AND
RUN
J30
WMI
C3
□
□
□
P ^ IF I
2973407
I
I
— 75 .8 DK B LU — --------------1
j
□
—
•75- 8 DK BLU
PROVISIONS
FOR BACK-UP LP
8917095
RIGHT HAND
BACK-UP
(RPO E32/E33 ONLY)
---------------------------- 24 .8 LT G R N ---------- 1
■24- 8 LT GRN- 2 4 - 8 LT GRIM----------
FRONT
FUSE BLOCK
3 8" m
____________ I
----- 75- 8 DK BLU
BLU-I
(ALL EXCEPT L05)
2977107
.8 BLK
..................
2 4 -2 .0 LT G
E E 03 B 0 E E 8917234
© E CD B
E □ E
NT*
liz jQ T
E E GJ CD E 0 E
• ATT
o —n
io*w
n — r-»
ACL
.
S
9 I;
s ;
IPS
SHUNT SHUNT
Ah
0 * 3 o iQN
»g
Ml B/t
iSS ^
kB I kS
HOWN DM
l/P
f,.
6288566
6288565
S 'S □ □ 1kS
9
I
29
14
12
15
I
6
3
L _ --- If93 1155
350
39
11
.8 BLK
REAR
38 .8 DK BLU
120
75- 8 DK BLU
2
30 I 33 J
| 35 |
|
1
I
|
2
1 1 3 0 |( -
...I.
)r
2977107
8917232
PROVISIONS
FOR BACKUP LP
LEFT HAND
BACK-UP
LAMP
(RPO E32/E33 ONLY)
BACKUP
LAMP SWITCH
4-SPEED IWIAN. ONLY
m
C
H m
Ti
S
^
24
— 24 .8 LT GRN----------- ■ K
m
— 75- 8 DK BLU -----------
75
12015792
24 |
4I£75
6294468
2977373
MANUAL ONLY
8911781
GROMMET
BACK-UP LAMPS
SECTION B - PAGE 41
R.H.
SIDE MARKER
LAMP
PROVISIONS FOR
R.H. TAIL. STOP
& DIRECTIONAL
LAMP (P32)
R.H. TAIL, STOP &
DIRECTIONAL
LAMP (P42)
HEADLAMP
SWITCH
Z
2984855
SPLICE 9
l/P
■9 .8 BRN-
9 .8 BRN-
R.H.
LICENSE
LAMP
9 .8 BRN-
L.H.
LICENSE
LAMP
9- 8 BRN
9 -1 .0 BRN9 -1 .0 BRN-
f^G y - lalgl l - S f e ]
6288566
SPLICE 9
6288565
8917234
0
-TT
\
9
12
15
29
1
1
TT
8917233
TO
FORWARD
LAMPS
6
3
350
39
120
2
14
11
I_________ l | 9 3 l |
30 1
1 35 |
|
2
- M 4 ,9 I
8917232
1
|
I
HOT AT
ALL TIMES
|
|1 3 0 |T ~
\ f
2984855
L.H. TAIL, STOP
& DIRECTIONAL
LAMP (P42)
„
0
0*1*
m
□ B
E E ®
4
Hr*
p ’
□ B E E
L.H.
SIDE MARKER
LAMP
E cd B CD m
»•*
ACC
SHUNT
[ 6*
I
□ □ □ □
C 3C3
C 3P □
FRONT
TAIL LAMPS
SECTION B - PAGE 42
FUSE BLOCK
REAR
PROVISIONS
FOR L.H. TAIL.
STOP &
DIRECTIONAL
LAMP (P32)
44
R.H.
SIDE MARKER
LAMP
9
c
f
PARK
OFF
s
v
HEAD f
PARK O
OFF
12004628
TO
R.H. TAIL. STOP &
DIRECTIONAL
LAMP (P42)
HEADLAMP
SWITCH
PROVISIONS FOR
LICENSE LAMP
(P32)
R.H. LICENSE
LAMP (P42)
SPLICE 9
------- 9- 8 BRN
■9 .8 BRN-
l/P
• 9 .8 BRN
.8 BLK
X
■9- 8 BRN-
9 -1 .0 BRN —
— 9 -1 .0 BRN ‘
-9 .8 BRN6288566
k '
I
I
TO
FORWARD
LAMPS
N
9
12
15
-
1^
6
3
350
39
2
1
30 | 33 |
120
I 3b |
^ ] 4
9
I
PROVISIONS FOR
LICENSE LAMP
(P32)
29
1
IT
L.H. LICENSE
LAMP (P42)
I
(N m
| 24
8917233
~P T
/
8917234
-TJ
6288565
9 .8 BRN
2
„ |
14
11
j
SPLICE 9
TO
L.H. TAIL, STOP
& DIRECTIONAL
LAMP (P42)
HOT AT
ALL TIMES
|
|1 3 0 |(
|
8917232
(9 0)
□
S E E
GD IB
□
B
E
E
QD IS ID 65 E ID
•ATT
20A
Tl V
TAIL LPS
20 AMP
tO»
ACC
0 « t *
S
<
L.H.
SIDE MARKER
LAMP
O
IPS
SHUNT
Q
sA^J
[M i
q ~ ]
n g ]
tom
tiAoto
C unt
G§] K l [MI
□
n=n
□
□
□
sT o * h a
FROMT
FUSE BLOCK
REAR
LICENSE LAMPS
SECTION B - PAGE 43
X'
r
■s
s
i
a