coolant level JEEP CHEROKEE 1995 Service Owner's Guide

oil until you are ready to use it. Install the cap im-
mediately after using. Store the oil only in a clean
moisture-free container.
Keep service tools and the work area clean. Con-
tamination of A/C system through careless work hab-
its must be avoided.
COOLING SYSTEM
To maintain the performance level of the heating/
air conditioning system, the engine cooling system
must be properly maintained.
The use of a bug screen is not recommended. Any
obstructions in front of the radiator or condenser can
reduce the performance of the A/C and cooling sys-
tem. If a bug screen is used it must be cleaned fre-
quently.
COOLANT PRECAUTIONS
WARNING: ANTIFREEZE IS AN ETHYLENE GLYCOL
BASE COOLANT AND IS HARMFUL IF SWAL-
LOWED OR INHALED. IF SWALLOWED, DRINK
TWO GLASSES OF WATER AND INDUCE VOMIT-
ING. IF INHALED, MOVE TO FRESH AIR AREA.
SEEK MEDICAL ATTENTION IMMEDIATELY.
WARNING: WASH SKIN AND CLOTHING THOR-
OUGHLY AFTER COMING IN CONTACT WITH ETH-
YLENE GLYCOL.
WARNING: KEEP OUT OF REACH OF CHILDREN
AND PETS.
WARNING: DO NOT OPEN A COOLING SYSTEM
WHEN THE ENGINE IS AT RUNNING TEMPERA-
TURE. PERSONAL INJURY CAN RESULT.WARNING: DO NOT STORE IN OPEN OR UN-
MARKED CONTAINERS.
WARNING: HOT ENGINE COOLANT CAN CAUSE
SEVERE BURNS. DO NOT OPEN THE RADIATOR
DRAIN COCK WHEN THE COOLING SYSTEM IS
HOT AND PRESSURIZED. ALLOW THE COOLANT
TO DECREASE TO ROOM TEMPERATURE BEFORE
STARTING REPAIR OPERATIONS.
The engine cooling system is designed to develop
internal pressure of 97 to 124 kPa (14 to 18 psi). Al-
low the vehicle 15 minutes to cool down (or until a
safe temperature and pressure are attained) before
opening the cooling system. Refer to Group 7, Cooling
System.REFRIGERANT HOSES/TUBES PRECAUTIONS
Kinks or sharp bends in the refrigerant tubing or
hoses will reduce the capacity of the entire system.
High pressures are produced in the system when it is
operating. Extreme care must be exercised to make
sure that all connections are pressure tight. Dirt and
moisture can enter the system when it is opened for
repair.
A good rule for the flexible hose lines is to keep the
radius of all bends at least 10 times the diameter of
the hose. Sharp bends will reduce the flow of refrig-
erant. The flexible hose lines should be routed so
they are at least 80 mm (3 inches) from the exhaust
manifold. It is a good practice to inspect all flexible
hose lines at least once a year to make sure they are
in good condition and properly routed.
24 - 10 HEATING AND AIR CONDITIONINGJ

DOOR REMOVAL/INSTALLATIONÐXJ.....23-35
DOOR RESTRAINT REPLACEMENTÐXJ . . . 23-41
DOOR SERVICEÐYJ, FULL-METAL......23-142
DOOR SPACER BLOCKSÐTWO-DOOR
VEHICLES, FRONT....................23-53
DOOR STATIONARY WINDOW
GLASSÐXJ, REAR...................23-46
DOOR TRIM PANELÐXJ...............23-31
DOOR TRIM PANELÐYJ, FULL-METAL . . . 23-137
DOOR VACUUM MOTOR, FRESH AIR.....24-34
DOOR VACUUM MOTOR REPLACEMENT,
A/C RECIRCULATING..................24-27
DOOR VENT WINDOW GLASSÐYJ,
FULL-METAL.......................23-137
DOOR WATERDAMÐYJ, FULL-METAL . . . 23-137
DOOR WEATHERSTRIP SEAL
REPLACEMENTÐYJ.................23-142
DOOR WEATHERSTRIP SEALSÐYJ,
FULL-METAL.......................23-141
DOOR WINDOW EXTERIOR
MOLDINGSÐXJ.....................23-54
DOOR WINDOW GLASS AND DOOR
OPENING WEATHERSTRIP SEALSÐXJ....23-55
DOOR WINDOW GLASS REGULATOR
HANDLEÐYJ, FULL-METAL............23-136
DOOR WINDOW GLASS REGULATORÐ
XJ, FRONT..........................23-42
DOOR WINDOW GLASS REGULATORÐ
XJ, REAR...........................23-44
DOOR WINDOW GLASS REGULATORÐ
YJ, FULL-METAL....................23-138
DOOR WINDOW GLASSÐXJ, FRONT.....23-43
DOOR WINDOW GLASSÐXJ, REAR......23-45
DOOR WINDOW GLASSÐYJ, FULL-
METAL............................23-139
DOORÐYJ, HALF-METAL SOFT TOP.....23-134
DOUBLE CARDAN (CV)................16-11
DRAG LINK....................19-16,19-20
DRAINING COOLING SYSTEM............7-21
DRAW FUSE, IGNITION-OFF.............8F-1
DRAW, IGNITION-OFF.................8A-10
DRB SCAN TOOL; BRAKES...............5-3
DRB SCAN TOOL; COOLING SYSTEM.......7-5
DRB SCAN TOOL; EMISSION CONTROL
SYSTEMS...........................25-2
DRB SCAN TOOL; FUEL SYSTEM........14-54
DRB SCAN TOOL; IGNITION SYSTEMS....8D-8
DRIERÐ2.5L ENGINES, CONDENSER
FILTER.............................24-27
DRIERÐ4.0L ENGINES, FILTER.........24-28
DRIP RAIL MOLDINGÐXJ.............23-25
DRIVE (4WD) SWITCH, FOUR-WHEEL;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
DRIVE (4WD) SWITCH, FOUR-WHEEL;
TRANSMISSION CONTROLS (XJ-RHD) . . 8W-31-1
DRIVE, AUTOMATIC BELT TENSIONERÐ
XJ MODELS WITH RIGHT HAND..........7-42
DRIVE AXLE ASSEMBLY
REPLACEMENTÐXJ VEHICLES; FRONT
SUSPENSION AND AXLE................2-23
DRIVE AXLE ASSEMBLY
REPLACEMENTÐXJ VEHICLES; REAR
SUSPENSION AND AXLES...........3-14,3-31
DRIVE AXLE ASSEMBLY
REPLACEMENTÐYJ VEHICLES; FRONT
SUSPENSION AND AXLE................2-24
DRIVE AXLE ASSEMBLY
REPLACEMENTÐYJ VEHICLES; REAR
SUSPENSION AND AXLES
...............3-14
DRIVE AXLE, FRONT
....................2-3
DRIVE BELT, ACCESSORY
...............0-21
DRIVE BELT DIAGNOSIS (CONT.),
SERPENTINE
.........................7-40
DRIVE BELT DIAGNOSIS, SERPENTINE
.....7-39
DRIVE, BELT SERVICEÐEXCEPT RIGHT
HAND
...............................7-40
DRIVE, BELT SERVICEÐXJ MODELS
WITH RIGHT HAND
....................7-42
DRIVE BELT TENSION
..................7-45
DRIVE BELTS, ENGINE ACCESSORY
.......7-38
DRIVE GEAR, SPEED SENSOR
ROTORÐSPEEDOMETER
.............21-193
DRIVE, GENERATOR REMOVE/INSTALLÐ
LEFT-HAND
..........................8B-6
DRIVE, GENERATOR REMOVE/INSTALLÐ
RIGHT-HAND
.........................8B-7
DRIVE PULLEY REPLACEMENT
..........19-13DRIVE (RHD), BELT TENSIONÐEXCEPT
RIGHT HAND.........................7-38
DRIVE (RHD), BELT TENSIONÐRIGHT
HAND...............................7-38
DRIVE (RHD) MODELS, BELT TENSIONÐ
EXCEPT RIGHT HAND..................7-45
DRIVE SHAFTS.......................0-26
DRIVE VEHICLES, RIGHT HAND..........23-1
DRIVE, VISCOUS FAN..................7-34
DRIVELINE SNAP; FRONT SUSPENSION
AND AXLE...........................2-19
DRIVELINE SNAP; REAR SUSPENSION
AND AXLES..........................3-10
DRIVELINE VIBRATION.................16-3
DRIVER'S DOOR JAMB SWITCH.....8U-1,8U-2
DRIVER'S POWER LOCK SWITCHÐ2-
DOOR (LHD).........................8P-3
DRIVER'S POWER LOCK SWITCHÐ2-
DOOR (RHD).........................8P-4
DRIVER'S POWER LOCK SWITCHÐ4-
DOOR..............................8P-5
DRIVER'S POWER WINDOW SWITCHÐ
2-DOOR (LHD).......................8S-4
DRIVER'S POWER WINDOW SWITCHÐ
2-DOOR (RHD).......................8S-5
DRIVER'S POWER WINDOW SWITCHÐ
4-DOOR.............................8S-3
DRIVER'S SEAT BELT SWITCH.......8U-1,8U-3
DRIVETRAIN.........................0-22
DRL MODULE REPLACEMENTÐXJ.......8L-15
DRL MODULE REPLACEMENTÐYJ........8L-30
DRUM BRAKE ADJUSTMENT............5-57
DRUM BRAKES.......................5-55
DRUM BRAKESHOE INSTALLATION.......5-55
DRUM BRAKESHOE REMOVAL...........5-55
DRUM REFINISHING, BRAKE............5-58
DRUMÐREAR SUPPORT OVERHAUL,
OVERRUNNING CLUTCHÐLOW-
REVERSE..........................21-125
DUCT, DEFROSTER NOZZLE............24-33
DUCT, FRESH AIR INTAKE..............24-34
ECU AND HCU DIAGNOSIS, ANTILOCK......5-3
ECU INSTALLATION (XJ MODELS)........5-40
ECU OPERATION......................5-37
ECU REMOVAL (XJ MODELS)............5-40
ECU REMOVAL/INSTALLATION (YJ
MODELS)............................5-41
EDGE GUARD/EDGE PROTECTOR
STRIPÐXJ, DOOR....................23-54
EFFECTS OF INCORRECT FLUID LEVEL....21-71
EFFORT, HARD PEDAL OR HIGH PEDAL.....5-6
ELECTRIC COOLING FANÐXJ MODELS
WITH 4.0L 6-CYLINDER ENGINE,
AUXILIARY..........................7-35
ELECTRICAL CONTROL, FUEL PUMP......14-5
ELECTRONIC CONTROL UNIT (ECU).......5-34
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-2
ELEMENT, AIR CLEANER; EMISSION
CONTROL SYSTEMS...................25-7
ELEMENT, AIR CLEANER; FUEL SYSTEM . . 14-59
ELEMENT, AIR CLEANER; LUBRICATION
AND MAINTENANCE...................0-18
ELEMENT TEST, OXYGEN SENSOR (O2S)
HEATING...........................14-48
ELEMENTS, HEATER; POWER MIRRORS
(XJ-RHD).........................8W-62-1
EMISSION CONTROL INFORMATION
(VECI) LABEL, VEHICLE.................25-1
EMISSION CONTROL SYSTEM...........0-20
EMISSION CONTROL SYSTEM
MAINTENANCE........................0-4
EMISSION CONTROLS..................25-4
EMR LAMPÐPCM OUTPUT............14-27
ENGINE ACCESSORY DRIVE BELTS.......7-38
ENGINE AND TRANSMISSION/TRANSFER
CASE IDENTIFICATION...............Intro.-5
ENGINE ASSEMBLY (SHORT BLOCK),
SERVICE.............................9-4
ENGINE ASSEMBLYÐXJ VEHICLES
. . . 9-18,9-59
ENGINE ASSEMBLYÐYJ VEHICLES
. . . 9-20,9-62
ENGINE, AUXILIARY ELECTRIC COOLING
FANÐXJ MODELS WITH 4.0L
6-CYLINDER
.........................7-35
ENGINE BLOCK HEATER
................7-44
ENGINE BREAK-IN
.....................0-15ENGINE COOLANT TEMPERATURE
GAUGE; INSTRUMENT CLUSTER (XJ) . . 8W-40-1
ENGINE COOLANT TEMPERATURE
SENSOR; FUEL SYSTEM...............14-60
ENGINE COOLANT TEMPERATURE
SENSOR; FUEL/IGNITION (XJ)........8W-30-3
ENGINE COOLANT TEMPERATURE
SENSOR; FUEL/IGNITION (YJ)........8W-30-3
ENGINE COOLANT TEMPERATURE
SENSOR; IGNITION SYSTEMS......8D-19,8D-5
ENGINE COOLANT TEMPERATURE
SENSOR; FUEL/IGNITION (XJ-RHD)....8W-30-3
ENGINE COOLANT TEMPERATURE
SENSOR TEST; FUEL SYSTEM..........14-46
ENGINE COOLANT TEMPERATURE
SENSOR TEST; IGNITION SYSTEMS.......8D-9
ENGINE COOLANT TEMPERATURE
SENSORÐPCM INPUT................14-23
ENGINE COOLANT TEMPERATURE
WARNING LAMP; INSTRUMENT
CLUSTER (XJ).....................8W-40-1
ENGINE COOLANT TEMPERATURE
WARNING LAMP; INSTRUMENT
CLUSTER (XJ-RHD)................8W-40-1
ENGINE COOLING SYSTEM..............0-18
ENGINE CYLINDER HEAD...........9-25,9-67
ENGINE CYLINDER HEAD COVER.....9-22,9-64
ENGINE CYLINDER HEAD GASKET
FAILURE DIAGNOSIS....................9-5
ENGINE DAMPER.....................9-17
ENGINE DIAGNOSIS....................9-5
ENGINE, DIAGRAM INDEXÐ2.5L;
FUEL/IGNITION (XJ)..................8W-30-6
ENGINE, DIAGRAM INDEXÐ4.0L;
FUEL/IGNITION (XJ)................8W-30-6
ENGINE, ENGINE EXHAUST MANIFOLDÐ
2.5L................................11-7
ENGINE, ENGINE EXHAUST MANIFOLDÐ
4.0L................................11-7
ENGINE, ENGINE FIRING ORDERÐ2.5L
4-CYLINDER........................8D-32
ENGINE, ENGINE FIRING ORDERÐ4.0L
6-CYLINDER........................8D-32
ENGINE EXHAUST MANIFOLDÐ2.5L
ENGINE.............................11-7
ENGINE EXHAUST MANIFOLDÐ4.0L
ENGINE.............................11-7
ENGINE FIRING ORDERÐ2.5L
4-CYLINDER ENGINE.................8D-32
ENGINE FIRING ORDERÐ4.0L
6-CYLINDER ENGINE.................8D-32
ENGINE, INTAKE MANIFOLDÐ2.5L........11-7
ENGINE, INTAKE MANIFOLDÐ4.0L........11-8
ENGINE MAINTENANCE.................0-15
ENGINE MOUNTÐREAR............9-16,9-57
ENGINE MOUNTSÐFRONT..........9-14,9-56
ENGINE OIL..........................0-15
ENGINE OIL CHANGE AND FILTER
REPLACEMENT.......................0-16
ENGINE OIL FILTER....................0-17
ENGINE OIL PRESSURE.................9-7
ENGINE ONLY, POWER STEERING
PRESSURE SWITCHÐ2.5L.............14-63
ENGINE ONLY, TORQUE CONVERTER
CLUTCH (TCC) SOLENOID AND
RELAYÐ2.5L; TRANSMISSION
CONTROLS (XJ)...................8W-31-1
ENGINE ONLY, TRANSMISSION
CONTROL MODULEÐ4.0L;
TRANSMISSION CONTROLS (XJ)......8W-31-1
ENGINE PERFORMANCE.................9-2
ENGINE SERVICE PROCEDURES, 2.5L.....9-13
ENGINE SERVICE PROCEDURES, 4.0L.....9-55
ENGINE SPECIFICATIONS...........9-52,9-93
ENGINE, VACUUM ROUTING
SCHEMATICÐ2.5L 4 CYLINDER..........25-3
ENGINE, VACUUM ROUTING
SCHEMATICÐ4.0L 6 CYLINDER..........25-3
ENGINES, CONDENSER FILTER
DRIERÐ2.5L........................24-27
ENGINES, CONDENSERÐ4.0L..........24-28
ENGINES, FILTER DRIERÐ4.0L
.........24-28
ENGINES, FUEL USAGE STATEMENTÐ
GAS
................................0-19
ENGLISH/SAE CONVERSION, METRIC
. . Intro.-11
ENTRY MODULE, KEYLESS
.........8P-1,8P-7
ENTRY MODULE, REMOTE KEYLESS;
POWER DOOR LOCKS (XJ)
...........8W-61-1
JINDEX 9
Description Group-Page Description Group-Page Description Group-Page

switch to ground on circuit Z1. The switch closes dur-
ing periods of high power steering pump load and
low engine speed; such as parking maneuvers. Cir-
cuit K10 connects to cavity 10 of the PCM.
TACHOMETER SIGNAL
The Powertrain Control Module (PCM) supplies the
signal for the tachometer on circuit G21. Circuit G21
connects to cavity 43 of the PCM.
MALFUNCTION INDICATOR LAMP (MIL)
The Powertrain Control Module (PCM) provides
ground for the instrument cluster malfunction indica-
tor lamp on circuit G3. The MIL displays the mes-
sage CHECK ENGINE when illuminated. Circuit G5
provides voltage for the lamp.
DATA LINK CONNECTOR
Circuit G50 supplies battery voltage to the data
link connector. Circuit G50 originates at fuse 5 in the
fuse block. Circuit G50 is double crimped at the data
link connector and connects to cavity 9 of the Power-
train Control Module (PCM).
Circuit A21 from the ignition switch powers fuse 5
when the switch is in the START or RUN positions.
In the START or RUN position the ignition switch
connects circuit A1 from fuse 4 in the Power Distri-
bution Center (PDC) with circuit A21.
Circuit D20 connects to cavity 45 of the PCM. Cir-
cuit D20 is the SCI receive circuit for the PCM.
Circuit D21 connects to cavity 25 of the PCM. Cir-
cuit D21 is the SCI transmit circuit for the PCM.
Circuit Z11 provides ground for the data link con-
nector. Circuit Z11 splices to circuit Z1 which termi-
nates at the right rear of the engine. Circuit Z11 also
connects to cavity 5 of the PCM.
HELPFUL INFORMATION
²Circuit Z1 also supplies a ground for the PCM
high current drivers.
²If the system loses ground for the Z1 and Z11 cir-
cuits at the right rear of the engine, the vehicle will
not operate. Check the connection at the ganged-
ground circuit eyelet.
BRAKE SWITCH INPUT
Circuit V40 provides the brake switch input to the
Powertrain Control Module (PCM). Circuit V40 con-
nects to cavity 29 of the PCM.
POWER (DEVICE) GROUND
Circuit Z11 connects to cavities 11 and 12 of the
Powertrain Control Module (PCM). The Z1 circuit
provides ground for PCM internal drivers that oper-
ate high current devices like the injectors and igni-
tion coil.
Internal to the PCM, the power (device) ground cir-
cuit connects to the PCM sensor return circuit (from
circuit K4).
HELPFUL INFORMATION
²The grounding point for circuit Z1 is the right rear
of the engine.
²If the system loses ground for the Z1 circuits at
the rear of the engine, the vehicle will not operate.
Check the connection at the ganged-ground circuit
eyelet.
DIAGRAM INDEX
Component Page
Automatic Shut Down Relay...............8W-30-6, 14
Camshaft Position Sensor................8W-30-10, 16
Crankshaft Position Sensor...............8W-30-10, 16
Data Link Connector...................8W-30-11, 17
Daytime Running Lamps (DRL) Module.......8W-30-11, 17
Engine Coolant Temperature Sensor..........8W-30-9, 18
Fuel Pump Relay........................8W-30-20
Fuel Tank Level Unit......................8W-30-21
Fuse 1 (PDC)........................8W-30-6, 14
Fuse 4 (PDC)........................8W-30-6, 14
Fuse 5 (Fuse Block).................8W-30-6, 14, 20
Heated Oxygen Sensor..................8W-30-7, 15
Idle Air Control Motor..................8W-30-12, 18
Ignition Switch.....................8W-30-6, 14, 20
Ignition Coil........................8W-30-12, 18
Injectors (4.0L).........................8W-30-13
Injectors (2.5L)..........................8W-30-8
Instrument Cluster....................8W-30-11, 17
Intake Air Temperature Sensor.............8W-30-9, 18
MAP Sensor.........................8W-30-9, 18
Power Steering Pressure Switch..............8W-30-12
Powertrain Control Module.............8W-30-6 thru 21
Throttle Position Sensor.................8W-30-9, 18
Vehicle Speed Sensor..................8W-30-11, 17
J8W-30 FUEL/IGNITIONÐYJ VEHICLES 8W - 30 - 5

INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
The instrument cluster contains the gauges and
warning lamps. All gauges have magnetic move-
ments.
When the ignition switch is in either the START or
RUN position, circuit A1 from fuse 4 in the Power
Distribution Center (PDC) connects to circuit A21.
Circuit A21 powers fuse 9 in the fuse block. Fuse 9
powers circuit G5. One branch of circuit G5 connects
directly to the combination buzzer. The other branch
of circuit G5 splices to power the gauges, speedome-
ter, tachometer, voltmeter, indicator lamps, and
warning lamps in the instrument cluster.
When the parking lamps or headlamps are ON, the
headlamp switch connects circuit F33 to circuit L7.
Circuit L7 splices to the dimmer switch. Circuit E1
from the dimmer switch powers fuse 10 in the fuse
block when the parking lamps or headlamps are ON.
Circuit E2 from fuse 10 in the fuse block feeds the
illumination lamps in the instrument cluster.
Circuit Z1 provides ground the instrument cluster
illumination lamps, gauges and warning lamps.
HELPFUL INFORMATION
²Circuit G5 also powers the heated rear window,
A/C compressor clutch relay. On Canadian vehicles,
circuit G5 powers the Daytime Running Lamps
(DRL) module.
²Circuit F33 originates at fuse 8 in the fuse block.
Circuit A6 from fuse 3 in the PDC powers fuse 8 in
the fuse block.
ENGINE COOLANT TEMPERATURE GAUGE
Circuit G20 connects the engine coolant tempera-
ture gauge to the engine coolant temperature sensor.
The sensor is a variable resistor and case grounded
to the engine. Circuit G5 connects to the instrument
cluster and supplies voltage for the gauge.
The gauge uses two coils. The first coil has fixed
current flowing through it to maintain magnetic field
strength. Circuit Z1 provides ground for the fixed
current coil. The current level passing through the
second coil is controlled by the variable resistor in
the engine coolant temperature sender. The changing
current varies the magnetic field in the second coil.
Refer to group 8E, Instrument Panel and Gauges
for gauge operation.
FUEL GAUGE
Circuit G4 connects the fuel level sensor to the fuel
gauge in the instrument cluster. Circuit G5 supplies
voltage to the fuel gauge. The fuel level sensor draws
voltage from circuit G5 through the fuel gauge on cir-
cuit G4.The gauge uses two coils. The first coil has fixed
current flowing through it to maintain magnetic field
strength. Circuit Z1 provides ground for the fixed
current coil. The current level passing through the
second coil is controlled by the variable resistor in
the fuel level sensor. The changing current varies the
magnetic field in the second coil.
Circuit Z2 provides the ground path for the fuel
level sensor.
Refer to group 8E, Instrument Panel and Gauges
for gauge operation.
OIL PRESSURE GAUGE
The case grounded oil pressure sending unit is a
variable resistor. The sending unit connects to the oil
pressure gauge on circuit G60.
Circuit G5 connects to the instrument cluster and
supplies battery voltage to the oil pressure gauge.
The gauge uses two coils. The first coil has fixed cur-
rent flowing through it to maintain magnetic field
strength. Circuit Z1 provides ground for the fixed
current coil. The current level passing through the
second coil is controlled by the variable resistor in
the oil pressure sending unit. The changing current
varies the magnetic field in the second coil.
Refer to group 8E, Instrument Panel and Gauges
for gauge operation.
TACHOMETER
The Powertrain Control Module (PCM) provides
the tachometer signal to the electronic tachometer on
circuit G21. Circuit G21 originates at cavity 43 of the
PCM. Circuit Z1 provides ground for the tachometer's
internal logic circuits.
SPEEDOMETER
The electronic speedometer and odometer receive a
signal from the vehicle speed sensor on circuit G7.
Circuit G5 connects to the instrument cluster and
supplies battery voltage to the speedometer. Circuit
Z1 provides ground for the speedometer internal logic
circuits.
Circuit G7 splices to connect to the Powertrain
Control Module (PCM) and if equipped, the Daytime
Running Lamps (DRL) module.
FOUR-WHEEL DRIVE (4WD) INDICATOR LAMP
When the 4WD switch closes, circuit Z1 provides
ground for the 4WD indicator lamp in the instrument
panel. Circuit G5 connects to the instrument cluster
and supplies battery voltage to the 4WD indicator
lamp. Circuit G1 connects the indicator lamp to the
4WD switch.
J8W-40 INSTRUMENT CLUSTERÐYJ VEHICLES 8W - 40 - 1