1995 JEEP CHEROKEE brakes

WARNING LAMP, ABS; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-2
WARNING LAMP, ABS; ANTI-LOCK
BRAKES (YJ)......................8W-32-2
WARNING LAMP, ABS; INSTRUMENT
CLUSTER (XJ).....................8W-40-2
WARNING LAMP, ABS; INSTRUMENT
CLUSTER (XJ-RHD)................8W-40-2
WARNING LAMP, ABS; INSTRUMENT
CLUSTER (YJ).....................8W-40-2
WARNING LAMP, BRAKE; INSTRUMENT
CLUSTER (XJ).....................8W-40-2
WARNING LAMP, BRAKE; INSTRUMENT
CLUSTER (XJ-RHD)................8W-40-2
WARNING LAMP, BRAKE; INSTRUMENT
CLUSTER (YJ).....................8W-40-2
WARNING LAMP, ENGINE COOLANT
TEMPERATURE; INSTRUMENT
CLUSTER (XJ).....................8W-40-1
WARNING LAMP, ENGINE COOLANT
TEMPERATURE; INSTRUMENT
CLUSTER (XJ-RHD)................8W-40-1
WARNING LAMP, LOW FUEL;
INSTRUMENT CLUSTER (XJ).........8W-40-1
WARNING LAMP, LOW WASHER FLUID;
INSTRUMENT CLUSTER (XJ).........8W-40-2
WARNING LAMP, LOW WASHER FLUID;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
WARNING LAMP, OIL PRESSURE;
INSTRUMENT CLUSTER (XJ).........8W-40-2
WARNING LAMP, OIL PRESSURE;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-1
WARNING LAMP, SEAT BELT INDICATOR;
INSTRUMENT CLUSTER (XJ).........8W-40-2
WARNING LAMP, SEAT BELT INDICATOR;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
WARNING LIGHT DISPLAY, ABS...........5-3
WARNING LIGHT OPERATION, BRAKE......5-5
WARNING LIGHT, SYSTEM..............5-35
WARNING LIGHTS, BRAKE...............5-1
WARNING SWITCH REMOVE/INSTALL -
YJ, TURN SIGNAL/HAZARD..............8J-5
WARNING SYSTEM - XJ, TURN
SIGNAL/HAZARD......................8J-3
WARNING SYSTEM - YJ, HAZARD........8J-4
WARNING SYSTEM, HAZARD............8J-1
WARNINGS..........................24-9
WARNINGS, CAUTIONS AND SERVICE
PRECAUTIONS........................24-9
WARNINGS, NOTES, CAUTIONS; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-1
WARNINGS, SAFETY PRECAUTIONS......13-10
WASHER FLUID WARNING LAMP, LOW;
INSTRUMENT CLUSTER (XJ).........8W-40-2
WASHER FLUID WARNING LAMP, LOW;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
WASHER NOZZLE REMOVE/INSTALL,
LIFTGATE...........................8K-24
WASHER PUMP REMOVE/INSTALL.......8K-24
WASHER PUMP/RESERVOIR REMOVE/
INSTALL............................8K-8
WASHER SYSTEM, LIFTGATE............8K-5
WASHER SYSTEM, WINDSHIELD . . 8K-10,8K-12,
8K-1,8K-4
WASHER/THRUST PLATE
SPECIFICATIONS, 30RH/32RH SNAP
RING/THRUST......................21-335
WATER LEAK DETECTION AND
REPAIRÐXJ, STATIONARY GLASS.......23-76
WATER LEAK DETECTION AND
REPAIRÐYJ, STATIONARY GLASS......23-150
WATER PUDDLES, BRAKES DO NOT
HOLD AFTER DRIVING THROUGH
DEEP................................5-7
WATER PUMP TESTS..................7-13
WATER PUMPSÐGENERAL
INFORMATION........................7-13
WATER PUMPSÐREMOVAL/
INSTALLATION........................7-14
WATERDAMÐYJ, FULL-METAL DOOR . . . 23-137
WEAR COMPENSATION, CALIPER
OPERATION
..........................5-45
WEAR INDICATORS, TREAD
.............22-3
WEAR LIMITS, AW-4 OIL PUMP
........21-338
WEAR PATTERNS, TIRE
................22-4
WEATHERSTRIP SEAL REPLACEMENTÐ
YJ, DOOR
.........................23-142WEATHERSTRIP SEAL REPLACEMENTÐ
YJ, LIFTGATE GLASS.................23-125
WEATHERSTRIP SEAL/CROSSMEMBER
AIR DEFLECTORÐXJ, COWL...........23-11
WEATHERSTRIP SEALÐXJ, LIFTGATE
OPENING...........................23-64
WEATHERSTRIP SEALÐYJ, COWL......23-109
WEATHERSTRIP SEALÐYJ, TAILGATE . . . 23-123
WEATHERSTRIP SEALÐYJ,
WINDSHIELD FRAME................23-146
WEATHERSTRIP SEALSÐXJ, DOOR
WINDOW GLASS AND DOOR OPENING . . . 23-55
WEATHERSTRIP SEALSÐYJ, FULL-
METAL DOOR......................23-141
WET SANDING,BUFFING AND POLISHING . 23-158
WHEEL ALIGNMENT, FRONT..............2-5
WHEEL AND TIRE PROBLEMS............5-7
WHEEL BALANCE, TIRE.................22-6
WHEEL BEARING LUBRICANTS, CHASSIS
COMPONENT.........................0-28
WHEEL BEARINGS, FRONT..............0-28
WHEEL CYLINDER INSTALLATION........5-58
WHEEL CYLINDER OVERHAUL...........5-57
WHEEL CYLINDER REMOVAL............5-57
WHEEL INSTALLATION.................22-6
WHEEL LUG NUT....................22-12
WHEEL NUT TIGHTENING...........5-54,5-59
WHEEL ORNAMENTATION...............22-6
WHEEL REPLACEMENT..................22-6
WHEEL RUNOUT, TIRE.................22-8
WHEEL SENSOR INSTALLATION AND
ADJUSTMENT, REAR...................5-38
WHEEL SENSOR INSTALLATION, FRONT . . . 5-38
WHEEL SENSOR REMOVAL, FRONT.......5-38
WHEEL SENSOR REMOVAL, REAR........5-38
WHEEL SPEED SENSOR OPERATION......5-37
WHEEL SPEED SENSORS; ANTI-LOCK
BRAKES (XJ)......................8W-32-1
WHEEL SPEED SENSORS; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-1
WHEEL SPEED SENSORS; ANTI-LOCK
BRAKES (YJ)......................8W-32-1
WHEEL SPEED SENSORS; BRAKES.......5-34
WHEEL, STEERING..............19-49,19-58
WHEELHOUSE FLARES AND LINERSÐ
XJ, REAR...........................23-19
WHEELHOUSE SPLASH LINERSÐYJ....23-115
WHEELHOUSE TRIM PANELSÐXJ,
QUARTER..........................23-87
WHEELS............................22-6
WHEEL/TIRE SIZE AND INPUT SIGNALS....5-3
WHEN KEYS ARE NOT AVAILABLE,
TOWING............................0-13
WINDOW APPLIQUEÐXJ, QUARTER.....23-25
WINDOW EXTERIOR MOLDINGSÐXJ,
DOOR.............................23-54
WINDOW GLASS AND DOOR OPENING
WEATHERSTRIP SEALSÐXJ, DOOR......23-55
WINDOW GLASS GRID, REAR.......8N-1,8N-2
WINDOW GLASS GRID REPAIRS, REAR . . . 8N-3
WINDOW GLASS REGULATOR
HANDLEÐYJ, FULL-METAL DOOR......23-136
WINDOW GLASS REGULATORÐXJ,
FRONT DOOR.......................23-42
WINDOW GLASS REGULATORÐXJ,
REAR DOOR........................23-44
WINDOW GLASS REGULATORÐYJ,
FULL-METAL DOOR..................23-138
WINDOW GLASS, STATIONARY..........23-66
WINDOW GLASSÐXJ, FRONT DOOR.....23-43
WINDOW GLASSÐXJ, LIFTGATE........23-74
WINDOW GLASSÐXJ, REAR DOOR......23-45
WINDOW GLASSÐXJ, REAR DOOR
STATIONARY........................23-46
WINDOW GLASSÐXJ, REAR QUARTER
VENT..............................23-73
WINDOW GLASSÐYJ, FULL-METAL
DOOR............................23-139
WINDOW GLASSÐYJ, FULL-METAL
DOOR VENT
........................23-137
WINDOW GLASSÐYJ, HARD TOP
QUARTER
.........................23-149
WINDOW GLASS/REAR QUARTER
PLASTIC INSERTÐXJ, REAR QUARTER
. . . 23-73
WINDOW, HEATED REAR; HEATED REAR
WINDOW (XJ)
.....................8W-48-1
WINDOW, HEATED REAR; HEATED REAR
WINDOW (XJ-RHD)
.................8W-48-1WINDOW, HEATED REAR; HEATED REAR
WINDOW (YJ).....................8W-48-1
WINDOW MOTOR, POWER..........8S-1,8S-2
WINDOW MOTOR REMOVE/INSTALL,
POWER.............................8S-7
WINDOW SWITCH, PASSENGER'S
POWER.............................8S-6
WINDOW SWITCH, POWER.........8S-1,8S-2
WINDOW SWITCH REMOVE/INSTALL,
POWER.............................8S-7
WINDOW SWITCHÐ2-DOOR (LHD),
DRIVER'S POWER.....................8S-4
WINDOW SWITCHÐ2-DOOR (RHD),
DRIVER'S POWER.....................8S-5
WINDOW SWITCHÐ4-DOOR, DRIVER'S
POWER.............................8S-3
WINDOWS, POWER; POWER WINDOWS
(XJ).............................8W-60-1
WINDOWS, POWER; POWER WINDOWS
(XJ-RHD).........................8W-60-1
WINDSHIELD FRAME WEATHERSTRIP
SEALÐYJ.........................23-146
WINDSHIELD FRAMEÐYJ.............23-145
WINDSHIELD GLASS REPLACEMENTÐ
XJ ................................23-69
WINDSHIELD GLASSÐYJ.............23-146
WINDSHIELD REVEAL MOLDINGÐXJ....23-66
WINDSHIELD REVEAL MOLDINGÐYJ . . . 23-144
WINDSHIELD SERVICE INFORMATION....23-68
WINDSHIELD SIDE MOLDINGÐXJ.......23-86
WINDSHIELD WASHER SYSTEM....8K-10,8K-12,
8K-1,8K-4
WINDSHIELD WIPER ARM REMOVE/
INSTALL...........................8K-17
WINDSHIELD WIPER BLADE REMOVE/
INSTALL...........................8K-17
WINDSHIELD WIPER LINKAGE AND
PIVOTS REMOVE/INSTALL.............8K-17
WINDSHIELD WIPER MOTOR REMOVE/
INSTALL.......................8K-19,8K-6
WINDSHIELD WIPER SYSTEM.....8K-10,8K-12,
8K-1,8K-3
WINDSHIELD WIPER/WASHER SWITCH . . 8K-13,
8K-4
WINDSHIELD WIPER/WASHER SWITCH
REMOVE/INSTALL................8K-20,8K-7
WIPE MODULE, INTERMITTENT..........8K-4
WIPE SWITCH TESTING, INTERMITTENT . . 8K-15
WIPE SWITCH TESTING, NON-
INTERMITTENT......................8K-14
WIPER ARM REMOVE/INSTALL,
LIFTGATE...........................8K-17
WIPER ARM REMOVE/INSTALL,
WINDSHIELD........................8K-17
WIPER BLADE REMOVE/INSTALL,
WINDSHIELD........................8K-17
WIPER LINKAGE AND PIVOTS
REMOVE/INSTALL, WINDSHIELD........8K-17
WIPER MOTOR REMOVE/INSTALL,
LIFTGATE......................8K-20,8K-6
WIPER MOTOR REMOVE/INSTALL,
WINDSHIELD...................8K-19,8K-6
WIPER SYSTEM, LIFTGATE..............8K-4
WIPER SYSTEM, REAR; WIPERS (XJ) . . 8W-53-1
WIPER SYSTEM, REAR; WIPERS
(XJ-RHD).........................8W-53-1
WIPER SYSTEM, REAR; WIPERS (YJ) . . 8W-53-1
WIPER SYSTEM, WINDSHIELD....8K-10,8K-12,
8K-1,8K-3
WIPERS, INTERMITTENT; WIPERS
(XJ-RHD).........................8W-53-1
WIPERS, STANDARD; WIPERS (XJ-RHD) . 8W-53-1
WIPERSÐINTERMITTENT; WIPERS (XJ) . 8W-53-1
WIPERSÐINTERMITTENT; WIPERS (YJ) . 8W-53-1
WIPERSÐSTANDARD; WIPERS (XJ) . . . 8W-53-1
WIPERSÐSTANDARD; WIPERS (YJ) . . . 8W-53-1
WIPER/WASHER SWITCH, LIFTGATE . 8K-16,8K-5
WIPER/WASHER SWITCH REMOVE/
INSTALL, LIFTGATE
...............8K-24,8K-8
WIPER/WASHER SWITCH REMOVE/
INSTALL, WINDSHIELD
............8K-20,8K-7
WIPER/WASHER SWITCH, WINDSHIELD
. . 8K-13,
8K-4
WIPER/WASHER SYSTEM, LIFTGATE
.....8K-10,
8K-16,8K-1
WIRE CODE IDENTIFICATION; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)
...............................8W-1
32 INDEXJ
Description Group-Page Description Group-Page Description Group-Page

WIRING DIAGRAMS
CONTENTS
page page
8W-01 GENERAL INFORMATIONÐWIRING
DIAGRAMS...................... 8W-01-1
8W-10 FUSE/FUSE BLOCK........... 8W-10-1
8W-11 POWER DISTRIBUTION........ 8W-11-1
8W-15 GROUND DISTRIBUTION....... 8W-15-1
8W-20 CHARGING SYSTEM.......... 8W-20-1
8W-21 STARTING SYSTEM........... 8W-21-1
8W-30 FUEL/IGNITION.............. 8W-30-1
8W-31 TRANSMISSION CONTROLS.... 8W-31-1
8W-32 ANTI-LOCK BRAKES.......... 8W-32-1
8W-40 INSTRUMENT CLUSTER....... 8W-40-1
8W-41 HORN/CIGAR LIGHTER........ 8W-41-18W-42 AIR CONDITIONING/HEATER.... 8W-42-1
8W-44 INTERIOR LIGHTING.......... 8W-44-1
8W-47 AUDIO SYSTEM.............. 8W-47-1
8W-48 HEATED REAR WINDOW....... 8W-48-1
8W-50 FRONT LIGHTING............ 8W-50-1
8W-51 REAR LIGHTING............. 8W-51-1
8W-52 TURN SIGNALS.............. 8W-52-1
8W-53 WIPERS.................... 8W-53-1
8W-70 SPLICE INFORMATION........ 8W-70-1
8W-80 CONNECTOR PIN OUTS....... 8W-80-1
8W-90 CONNECTOR LOCATIONS...... 8W-90-1
8W-95 SPLICE LOCATIONS........... 8W-95-1
HOW TO USE THIS GROUP
The purpose of this group is to show the electrical
circuits in a clear, simple fashion and to make trou-
bleshooting easier. Components that work together
are shown together. All electrical components used in
a specific system are shown on one diagram. The feed
for a system is shown at the top of the page. All
wires, connectors, splices, and components are shown
in the flow of current to the bottom of the page. Wir-
ing which is not part of the circuit represented is ref-
erenced to another page/section, where the complete
circuit is shown. In addition, all switches, compo-
nents, and modules are shown in theat rest posi-
tion with the doors closed and the key removed
from the ignition.
If a component is part of several different circuits,
it is shown in the diagram for each. For example, the
headlamp switch is the main part of the exterior
lighting, but it also affects the interior lighting and
the chime warning system.
It is important to realize that no attempt is
made on the diagrams to represent components
and wiring as they appear on the vehicle. For
example, a short piece of wire is treated the
same as a long one. In addition, switches and
other components are shown as simply as pos-
sible, with regard to function only.
The wiring diagram show circuits for all wheel-
bases. If there is a difference in systems or compo-
nents between wheel-bases, an identifier is placed
next to the component.
SECTION IDENTIFICATION
Sections in Group 8W are organized by sub-sys-
tems. The sections contain circuit operation descrip-
tions, helpful information, and system diagrams. The
intention is to organize information by system, con-
sistently from year to year.
CONNECTOR LOCATIONS
Section 8W-90 contains Connector Location illus-
trations. The illustrations contain the connector
number and component identification. Connector Lo-
cation charts in Section 8W-90 reference the illustra-
tion number for components and connectors.
Section 8W-80 shows each connector and the cir-
cuits involved with that connector. The connectors
are identified using the number on the Diagram
pages.
SPLICE LOCATIONS
Splice Location charts in Section 8W-70 show the
entire splice, and provide references to other sections
the splice serves.
Section 8W-95 contains illustrations that show the
general location of the splices in each harness. The
illustrations show the splice by number, and provide
a written location.
JWIRING DIAGRAMSÐÐYJ VEHICLES 8W - 1 - 1

ANTI-LOCK BRAKES
GENERAL INFORMATION
Three fuses supply power for the Anti-Lock Brake
System (ABS); fuses 9 and 10 in the PDC and fuse
13 in the fuse block. Fuses 9 and 10 in the Power
Distribution Center (PDC) are connected directly to
battery voltage and are HOT all times. Fuse 13 is
HOT when the ignition switch is the RUN position.
In the RUN position, the ignition switch connects
circuit A1 from fuse 4 in the PDC with circuit A22.
Circuit A22 connects to a bus bar in the fuse block.
The bus bar feeds circuit F15 through fuse 13. Fuse
13 is a 2 amp fuse.
Circuit F15 splices to the coil side of the ABS
power relay and cavity 53 of the ABS control module.
Circuit Z1 provides ground for the ABS control
module. Circuit Z1 connects to cavities 1 and 19 of
the ABS control module.
Refer to group 5, Brakes for operational descrip-
tions of ABS system components.
WHEEL SPEED SENSORS
The all wheel anti-lock system uses four wheel
speed sensors; one for each wheel. Each sensor con-
verts wheel speed into an electrical signal that it
transmits to the ABS control module. A pair of
twisted wires connect to each sensor to provide sig-
nals to the ABS control module.
Circuits B6 and B7 provide signals to ABS control
module from the right front wheel speed sensor. Cir-
cuit B6, which provides the LOW signal, connects to
cavity 29 of the ABS control module. Circuit B7 con-
nects to cavity 47 of the module and provides the
HIGH signal.
Circuits B8 and B9 provide signals to ABS control
module from the left front wheel speed sensor. Cir-
cuit B8, which provides the LOW signal, connects to
cavity 30 of the ABS control module. Circuit B9 con-
nects to cavity 48 of the module and provides the
HIGH signal.
Circuits B1 and B2 provide signals to ABS control
module from the right rear wheel speed sensor. Cir-
cuit B1 which provides the LOW signal, connects to
cavity 27 of the ABS control module. Circuit B2 con-
nects to cavity 45 of the module and provides the
HIGH signal.
Circuits B4 and B3 provide signals to ABS control
module from the left rear wheel speed sensor. Circuit
B3, which provides the LOW signal, connects to cav-
ity 28 of the ABS control module. Circuit B4 connects
to cavity 46 of the module and provides the HIGH
signal.
ACCELERATION SWITCH
During four-wheel drive operation, the acceleration
switch provides deceleration data to the ABS control
module. Refer to Group 5, Brakes for additional in-
formation.
Circuits B21, B22, and B23 connect the accelera-
tion sensor to the ABS control module. Circuits B21
and B22 provide switch states while circuit B23 pro-
vides ground. At the ABS control module circuit B21
connects to cavity 25, circuit B22 connects to cavity
43 and circuit B23 connects to cavity 26.
ABS POWER RELAY
The ABS power relay is located in the Power Dis-
tribution Center (PDC). When the ABS module
grounds the ABS power relay on circuit B20, the re-
lay switches to connect circuit B15 and circuit A20
from PDC fuse 10. Circuit F15 from fuse 13 in the
fuse block splices to feed the coil side of the ABS
power relay. Circuit B20 connects to cavity 34 of the
ABS control module.
Circuit B15 is double crimped at the ABS power re-
lay. One branch of circuit B15 supplies power to the
coil side of the ABS pump motor relay. The other
branch of circuit B15 splices to cavities 3 and 33 of
the ABS control module and to the hydraulic control
unit.
ABS PUMP MOTOR RELAY
The ABS pump motor relay in the Power Distribu-
tion Center (PDC) supplies voltage to the ABS pump
motor. When the ABS power relay energizes, circuit
B15 supplies battery voltage to the coil side of the
ABS pump motor relay. The ABS control module pro-
vides ground for the relay on circuit B116. Circuit
B116 connects to cavity 15 of the ABS control mod-
ule.
When the ABS pump motor energizes, it connects
circuit A10 from PDC fuse 9 to circuit B25. Circuit
B25 supplies battery voltage to the pump motor. Cir-
cuit Z12 provides ground for the pump motor.
PUMP MOTOR SPEED SENSOR
The input from the pump motor speed sensor tells
the ABS control module that the pump is operating.
Circuit B17 and B16 from the control module connect
to the speed sensor.
BRAKE PEDAL TRAVEL SENSOR
The brake pedal travel sensor provides the ABS
control module with data regarding brake pedal posi-
tion. The sensor is a variable resistor that the ABS
J8W-32 ANTI-LOCK BRAKESÐYJ VEHICLES 8W - 32 - 1

module provides voltage to and receives input from.
Circuit B210 from cavity 41 of the ABS control mod-
ule provides voltage to the sensor. Circuit B258 car-
ries the signal from the sensor to cavity 16 of the
ABS module.
BRAKE SWITCH INPUT
Circuit L50 from the stop lamp provides the brake
switch input to the ABS control module. When the
brake pedal is pressed, the stop lamp switch closes to
supply battery voltage from circuit F32 to circuit
L50. Circuit L50 connects to cavity 32 of the ABS
control module. Circuit F32 originates at fuse 3 in
the fuse block.
Circuit A6 from Power Distribution Center (PDC)
fuse 3 supplies voltage to the fuse block for circuit
F32.
HYDRAULIC CONTROL UNIT
When the ABS power relay energizes, two branches
of circuit B15 splice to supply voltage to the isolation
and decay solenoids in the hydraulic control unit.
The hydraulic control unit contains three separate
isolation solenoids and three separate decay sole-
noids. The ABS control module activates the decay
and isolation solenoids by providing separate ground
paths for each.
The ABS module provides a ground path for the
rear isolation solenoid on circuit B251. Circuit B251
connects to cavity 54 of the ABS control module.
For the right front isolation solenoid, the ABS mod-
ule provides a ground path on circuit B249. Circuit
B249 connects to cavity 38 of the ABS control mod-
ule.
On circuit B245, the ABS module provides ground
for the left front isolation solenoid. Circuit B245 con-
nects to cavity 20 of the ABS control module.
The ABS module provides a ground path for the
rear decay solenoid on circuit B254. Circuit B254
connects to cavity 36 of the ABS control module.
For the right front decay solenoid, the ABS module
provides a ground path on circuit B248. Circuit B248
connects to cavity 21 of the ABS control module.
On circuit B243, the ABS module provides ground
for the left decay solenoid. Circuit B243 connects to
cavity 2 of the ABS control module.
ABS WARNING LAMP
Circuit G5 provides power for the ABS warning
lamp at the instrument cluster. Ground for the ABS
warning lamp is provided by either the ABS control
module or by the ABS power relay when the relay is
not energized. The ABS control module illuminates
the lamp by providing ground on circuit G19.
Circuit G19 splices to connect to circuit B15
through a diode. When the ABS power relay is notenergized, it connects circuit B15 to circuit Z12. The
ground path for the warning lamp is through the di-
ode to circuit B15, through the ABS power relay to
ground on circuit Z12.
The diode between circuit G19 and B15 prevents
voltage from flowing to the ABS control module when
the ABS power relay switches to supply power on cir-
cuit B15.
DATA LINK CONNECTOR
Circuit D11 from cavity 23 of the ABS control mod-
ule receives data from the DRB scan tool through the
data link connector. The ABS control module trans-
mits data to the scan tool through the connector on
circuit D12. Circuit D12 originates at cavity 42 of the
ABS control module.
Through the data link connector, circuit Z12 pro-
vides ground for the DRB scan tool. Circuit Z12 ter-
minates at the right rear of the dash panel.
Circuit A4 from fuse 8 in the Power Distribution
Center (PDC) supplies power to fuse 16 in the PDC.
Fuse 16 powers circuit M1 which supplies battery
voltage to the scan tool through the diagnostic con-
nector.
HELPFUL INFORMATION
²Check fuses 4, 9 and 10 in the PDC
²Check fuse 13 in the fuse block
DIAGRAM INDEX
Component Page
ABS Power Relay........................8W-32-4
ABS Pump Motor/Sensor...................8W-32-5
ABS Warning Lamp.......................8W-32-4
ABS Control Module..................8W-32-3 thru 7
ABS Pump Motor Relay....................8W-32-5
Brake Pedal Travel Sensor...................8W-32-6
Data Link Connector......................8W-32-6
Fuse 1 Fuse Block........................8W-32-4
Fuse 3 Fuse Block........................8W-32-6
Fuse 3 (PDC)...........................8W-32-6
Fuse 4 (PDC)...........................8W-32-4
Fuse 8 (PDC)...........................8W-32-6
Fuse 10 (PDC)..........................8W-32-4
Fuse 12 Fuse Block.......................8W-32-4
Fuse 12 (PDC)..........................8W-32-6
Fuse 13 (PDC)..........................8W-32-4
Hydraulic Actuation Unit....................8W-32-3
Ignition Switch..........................8W-32-4
Powertrain Control Module (PCM)..............8W-32-6
Stop Lamp Switch........................8W-32-6
Wheel Speed Sensors......................8W-32-7
8W - 32 - 2 8W-32 ANTI-LOCK BRAKESÐYJ VEHICLESJ

REAR LIGHTING
TAIL LAMPS AND LICENSE PLATE LAMPS
Circuit A6 in the Power Distribution Center (PDC)
connects to a bus bar in the fuse block. The fuse
block bus bar powers circuit F33. Circuit F33 con-
nects to the headlamp switch. Fuse 3 in the PDC
protects circuit A3. Fuse 8 in the fuse block protects
circuit F33.
The headlamp switch has three positions: ON,
PARK (parking lamps) and OFF, plus a dimmer
switch. When the headlamp switch is in the PARK or
ON position, the switch connects circuit F33 to cir-
cuit L7. From the headlamp switch, circuit L7
branches to power the front parking lamps and rear
tail and license plate lamps. The lamps are case
grounded.
HELPFUL INFORMATION
²If the vehicle is equipped with factory installed fog
lamps, circuit L7 splices to feed the park lamp relay.
²Jumper harnesses connect the tail, stop, turn sig-
nal lamp to the body harness.
²Check fuse 3 in the PDC.
²Check fuse 8 in the fuse block.
²Circuit L7 also feeds the radio, if equipped.
STOP LAMPS AND CHMSL LAMPS
Circuit A6 from fuse 3 in the Power Distribution
Center (PDC) supplies voltage to the fuse block bus
bar. The bus bar powers circuit F32 through fuse 3 in
the fuse block. Circuit F32 connects to the stop lamp
switch.
When the operator depresses the brake pedal, the
stop lamp switch closes, and connects circuit F32 to
circuit L50. Circuit L50 connects to the CHMSL
lamps and turn signal/hazard flasher. Circuit Z1 pro-
vides ground for the CHMSL lamps. The turn signal/
hazard flasher supplies current to the L62 and L63
circuits. Circuit L62 powers the right stop lamp. Cir-
cuit L63 powers the left stop lamp. The stop lamps
are case grounded.
HELPFUL INFORMATION
²Circuits L50 and Z1 pass through contacts in the
rear door before reaching the CHMSL lamps.
²Check fuse 3 in the PDC.²Check fuse 3 in the fuse block.
²Check for continuity across the stop lamp switch
when it is closed.
²If the vehicle is equipped with anti-lock brakes,
circuit L50 connects to the ABS module.
BACK-UP LAMPS
In the START or RUN position, the ignition switch
connects circuit A1 from fuse 4 in the Power Distri-
bution Center (PDC) to circuit A21. Circuit A21 feeds
a bus bar in the fuse block that powers circuit G5
through fuse 9.
Circuit G5 splices to supply power to the back-up
lamp switch. On automatic transmission vehicles, the
back-up lamp switch is part of an assembly that in-
cludes the PARK/NEUTRAL position switch.
When the operator puts the transmission in Re-
verse, the back-up lamp switch connects circuit G5 to
circuit L1. Circuit L1 feeds the case grounded
back-up lamps.
HELPFUL INFORMATION
²Check fuse 4 in the PDC.
²Check fuse 9 in the fuse block.
²Check for continuity across the back-up lamp
switch when it is closed.
DIAGRAM INDEX
Component Page
ABS Control Module......................8W-51-3
Back-Up Lamps..........................8W-51-4
Back-Up Lamp Switch.....................8W-51-2
Center High Mounted Stop Lamps (CHMSL).......8W-51-3
Fuse 3 (Fuse Block).......................8W-51-2
Fuse 3 (PDC)...........................8W-51-2
Fuse 4 (PDC)...........................8W-51-2
Fuse 9 (Fuse Block).......................8W-51-2
Fuse 8 (Fuse Block).......................8W-51-2
Headlamp Switch.........................8W-51-2
Ignition Switch..........................8W-51-2
Powertrain Control Module..................8W-51-3
Stop Lamp Switch........................8W-51-3
Tail, Stop, and Turn Signal Lamps.............8W-51-4
J8W-51 REAR LIGHTINGÐYJ VEHICLES 8W - 51 - 1