
SPLICE INDEX; SPLICE INFORMATION
(YJ).............................8W-70-1
SPLICE LOCATIONS; SPLICE LOCATIONS
(XJ).............................8W-95-1
SPLICE LOCATIONS; SPLICE LOCATIONS
(YJ).............................8W-95-1
SPLICE LOCATIONS; WIRING DIAGRAMS
(XJ)...............................8W-1
SPLICE LOCATIONS; WIRING DIAGRAMS
(XJ-RHD)...........................8W-1
SPLICE LOCATIONS; WIRING DIAGRAMS
(YJ)...............................8W-1
SPORT BARÐYJ....................23-132
SPRING AND SHOCK ABSORBER
DIAGNOSIS........................3-3,3-6
SPRING AND SHOCK DIAGNOSIS; FRONT
SUSPENSION AND AXLE............2-13,2-15
SPRING AND SHOCK DIAGNOSIS; REAR
SUSPENSION AND AXLES.............3-3,3-6
SPRING, COIL........................2-14
SPRING EYE BUSHING REPLACEMENT,
LEAF; FRONT SUSPENSION AND AXLE.....2-17
SPRING EYE BUSHING REPLACEMENT,
LEAF; REAR SUSPENSION AND AXLES . . 3-5,3-7
SPRING IDENTIFICATION, AW-4 VALVE . . . 21-343
SPRING, LEAF; FRONT SUSPENSION
AND AXLE...........................2-16
SPRING, LEAF; REAR SUSPENSION AND
AXLES............................3-4,3-7
SPRING REPLACEMENT, VALVE STEM
SEAL...............................9-65
SPRINGS, ACCUMULATOR PISTONS....21-189
SPRINGS AND OIL SEALS, VALVE........9-23
SPRINGS, VALVES AND VALVE.......9-27,9-69
SPROCKETS, TIMING CHAIN.........9-31,9-73
STABILIZER BAR; FRONT SUSPENSION
AND AXLE.......................2-11,2-15
STABILIZER BAR; REAR SUSPENSION
AND AXLES...........................3-5
STALL TEST, CONVERTER..............21-74
STALL TEST, TORQUE CONVERTER.....21-178
STANDARD SERVICE PROCEDURES........9-1
STANDARD WIPERS................8W-53-1
STARTER AND SOLENOID TESTING
SPECIFICATIONS, 2.5L................8A-23
STARTER AND SOLENOID TESTING
SPECIFICATIONS, 4.0L................8A-23
STARTER AND STARTER RELAY..........8B-4
STARTER MOTOR RELAY TEST..........14-51
STARTER NOISE DIAGNOSIS...........8A-16
STARTER NOISE DIAGNOSIS, 2.5L.......8A-16
STARTER RELAY CONNECTIONS.........8A-15
STARTER RELAY REMOVE/INSTALL.......8B-6
STARTER RELAY, STARTER..............8B-4
STARTER REMOVE/INSTALLÐ2.5L........8B-4
STARTER REMOVE/INSTALLÐ4.0L........8B-5
STARTER SPECIFICATIONS..............8B-8
STARTING PROCEDURE, JUMP............0-9
STARTING SYSTEM; BATTERY/
STARTING/CHARGING SYSTEMS
DIAGNOSTICS.......................8A-11
STARTING SYSTEM; STARTING SYSTEM
(XJ).............................8W-21-1
STARTING SYSTEM; STARTING SYSTEM
(XJ-RHD).........................8W-21-1
STARTING SYSTEM; STARTING SYSTEM
(YJ)
.............................8W-21-1
STARTING SYSTEM COLD CRANKING
SPECIFICATIONS, 2.5L
................8A-23
STARTING SYSTEM COLD CRANKING
SPECIFICATIONS, 4.0L
................8A-23
STARTING SYSTEM DIAGNOSIS
.........8A-12
STARTING SYSTEM SPECIFICATIONS
.....8A-23
STARTING, TOWING AND HOISTING,
JUMP
................................0-9
STATEMENTÐGAS ENGINES, FUEL
USAGE
..............................0-19
STATIONARY GLASS
.................23-144
STATIONARY GLASS WATER LEAK
DETECTION AND REPAIRÐXJ
..........23-76
STATIONARY GLASS WATER LEAK
DETECTION AND REPAIRÐYJ
.........23-150
STATIONARY WINDOW GLASS
..........23-66
STATIONARY WINDOW GLASSÐXJ,
REAR DOOR
........................23-46
STATOR CLUTCH INSPECTION, TORQUE
CONVERTER
.......................21-199STEERING COLUMN GENERAL
SERVICEÐXJ.......................19-47
STEERING COLUMN, NON-TILT..........19-60
STEERING COLUMN, TILT..............19-66
STEERING COLUMNÐXJ..............19-78
STEERING COLUMNÐYJ.........19-58,19-78
STEERING DAMPER.............19-17,19-20
STEERING GEAR ADJUSTMENTS........19-24
STEERING GEAR, MANUAL;
LUBRICATION AND MAINTENANCE........0-30
STEERING GEAR, MANUAL; STEERING . . . 19-37,
19-78
STEERING GEAR, POWER..............19-78
STEERING GEAR, RECIRCULATING BALL
POWER............................19-21
STEERING GEAR REPLACEMENT . . . 19-23,19-45
STEERING GEAR SPECIFICATIONS,
MANUAL...........................19-46
STEERING GEAR SPECIFICATIONS,
POWER............................19-36
STEERING GEARS, RECIRCULATING-
BALL POWER.......................19-74
STEERING KNUCKLE AND BALL STUDS....2-32
STEERING LINKAGE...................0-28
STEERING LINKAGEÐXJ.........19-16,19-78
STEERING LINKAGEÐYJ.........19-19,19-78
STEERING PRESSURE SWITCH, POWER;
FUEL/IGNITION (XJ)................8W-30-5
STEERING PRESSURE SWITCH, POWER;
FUEL/IGNITION (YJ)..................8W-30-4
STEERING PRESSURE SWITCHÐ2.5L
ENGINE ONLY, POWER................14-63
STEERING PRESSURE SWITCHÐPCM
INPUT, POWER......................14-24
STEERING PUMP, POWER....19-11,19-74,19-78
STEERING PUMPÐINITIAL OPERATION,
POWER............................19-15
STEERING RHD......................19-74
STEERING SYSTEM COMPONENTS........19-1
STEERING SYSTEM DIAGNOSIS,
MANUAL...........................19-38
STEERING SYSTEM DIAGNOSIS, POWER . . 19-3,
19-4,19-5,19-6,19-7,19-8,19-9
STEERING SYSTEM DIAGNOSIS,
SUSPENSION..........................2-7
STEERING SYSTEM, POWER.............0-29
STEERING WHEEL...............19-49,19-58
STEM SEAL AND SPRING
REPLACEMENT, VALVE.................9-65
STEP MOLDINGÐYJ, BODY SIDE.......23-115
STOP LAMP (CHMSL)ÐXJ, CENTER
HIGH MOUNTED.....................8L-12
STOP LAMP (CHMSL)ÐYJ, CENTER
HIGH MOUNTED.....................8L-28
STOP LAMP RELAY; TRAILER TOW (XJ) . 8W-54-1
STOP LAMP RELAY; TRAILER TOW
(XJ-RHD).........................8W-54-1
STOP LAMP SWITCH..............8H-1,8H-6
STOP LAMPS AND CHMSL LAMPS;
REAR LIGHTING (XJ)...............8W-51-1
STOP LAMPS AND CHMSL LAMPS;
REAR LIGHTING (XJ-RHD)...........8W-51-1
STOP LAMPS AND CHMSL LAMPS;
REAR LIGHTING (YJ)...............8W-51-1
STORAGE BIN REMOVE/INSTALL,
SUNGLASSES........................8C-7
STORAGE, REMOTE GARAGE DOOR
OPENER............................8C-1
STORAGE, SUNGLASSES...............8C-1
STORAGEÐXJ, JACK.................23-97
STRAIGHTENING, FRAME..............13-13
STRAP, FUEL TANK SUPPORT............13-4
STRENGTH, BOLT..................Intro.-15
STRIKER AND BUMPERÐXJ, REAR
SEATBACK LATCH....................23-84
STRIKER REPLACEMENTÐXJ, HOOD
LATCH .............................23-11
STRIKER REPLACEMENTÐXJ, SAFETY
LATCH .............................23-11
STRIKERÐYJ, HALF-METAL DOOR
LATCH ............................23-135
STRIKERÐYJ, TAILGATE LATCH
........23-123
STRIPES/DECALSÐXJ, BODY
...........23-21
STRIPES/DECALSÐYJ, BODY
..........23-116
STRIPÐXJ, DOOR EDGE GUARD/EDGE
PROTECTOR
........................23-54
STUD REPLACEMENTÐXJ, LIFTGATE
SUPPORT ROD BALL
.................23-63STUDS, STEERING KNUCKLE AND BALL . . . 2-32
SUN GEAR AND NO. 1 ONE-WAY
CLUTCH OVERHAUL.................21-238
SUNGLASSES STORAGE................8C-1
SUNGLASSES STORAGE BIN REMOVE/
INSTALL............................8C-7
SUNVISORSÐXJ.....................23-93
SUNVISORSÐYJ....................23-155
SUPPLY TEST, VACUUM................8H-6
SUPPORT BRACKET REPLACEMENTÐXJ,
INTERIOR REARVIEW MIRROR..........23-68
SUPPORT CROSSMEMBERÐXJ,
RADIATOR...........................23-6
SUPPORT OVERHAUL, OVERDRIVE.....21-226
SUPPORT OVERHAUL, OVERRUNNING
CLUTCHÐLOW-REVERSE DRUMÐ
REAR.............................21-125
SUPPORT PLATE REPLACEMENT.........5-58
SUPPORT ROD BALL STUD
REPLACEMENTÐXJ, LIFTGATE..........23-63
SUPPORT ROD CYLINDER DISPOSALÐ
XJ, LIFTGATE........................23-63
SUPPORT ROD CYLINDERÐXJ,
LIFTGATE...........................23-62
SUPPORT STRAP, FUEL TANK............13-4
SUPPORTS, ENGINE...................0-21
SUPPRESSION, RADIO NOISE............8F-2
SURFACE TOUCH-UP, PAINTED.........23-158
SUSPENSION AND STEERING SYSTEM
DIAGNOSIS...........................2-7
SUSPENSION ARM, LOWER.............2-13
SUSPENSION ARM, UPPER.............2-12
SUSPENSION COMPONENTS.............3-1
SUSPENSION COMPONENTS, XJ FRONT . . . 2-49
SUSPENSION COMPONENTS, XJ REAR....3-51
SUSPENSION COMPONENTS, YJ FRONT . . . 2-49
SUSPENSION COMPONENTS, YJ REAR....3-51
SUSPENSION, FRONT...................2-1
SUSPENSION, XJ......................3-3
SUSPENSION, XJ FRONT...............2-11
SUSPENSION, YJ......................3-6
SUSPENSION, YJ FRONT...............2-15
SWITCH - XJ, MULTI-FUNCTION..........8J-4
SWITCH, ACCELERATION; ANTI-LOCK
BRAKES (XJ)......................8W-32-1
SWITCH, ACCELERATION; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-1
SWITCH, ACCELERATION; ANTI-LOCK
BRAKES (YJ)......................8W-32-1
SWITCH, ACCELERATION; BRAKES........5-35
SWITCH ADJUSTMENT, BRAKELIGHT......5-32
SWITCH AND KEY CYLINDER SERVICE,
IGNITION...........................8D-26
SWITCH AND PLUG LOCATIONS,
TRANSMISSION......................21-34
SWITCH, BLOWER MOTOR.............24-16
SWITCH, BRAKE.....................14-59
SWITCH CONTINUITY (LEFT POSITION),
POWER MIRROR......................8T-3
SWITCH CONTINUITY, POWER SEAT......8R-2
SWITCH CONTINUITY (RIGHT
POSITION), POWER MIRROR............8T-3
SWITCH CONTINUITY TESTS, IGNITION . . . 8D-30
SWITCH, DEFOGGER..............8N-1,8N-3
SWITCH, DRIVER'S DOOR JAMB.....8U-1,8U-2
SWITCH, DRIVER'S SEAT BELT......8U-1,8U-3
SWITCH, EXTENDED IDLE...........8W-30-5
SWITCH, FIN SENSING CYCLING
CLUTCH.......................24-15,24-31
SWITCH, FOUR-WHEEL DRIVE (4WD);
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
SWITCH, FOUR-WHEEL DRIVE (4WD);
TRANSMISSION CONTROLS (XJ-RHD) . . 8W-31-1
SWITCH, HORN.......................8G-1
SWITCH, IGNITION; BRAKES.............5-35
SWITCH, IGNITION; FUEL/IGNITION (XJ) . 8W-30-1
SWITCH, IGNITION; FUEL/IGNITION (YJ) . 8W-30-1
SWITCH, IGNITION; FUEL/IGNITION
(XJ-RHD).........................8W-30-1
SWITCH, IGNITION KEY-IN
..........8U-1,8U-2
SWITCH INPUT, BRAKE; ANTI-LOCK
BRAKES (XJ)
......................8W-32-2
SWITCH INPUT, BRAKE; ANTI-LOCK
BRAKES (XJ-RHD)
.................8W-32-2
SWITCH INPUT, BRAKE; ANTI-LOCK
BRAKES (YJ)
......................8W-32-2
SWITCH INPUT, BRAKE; FUEL/IGNITION
(XJ)
.............................8W-30-5
JINDEX 27
Description Group-Page Description Group-Page Description Group-Page

TROUBLESHOOTING TOOLS; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-4
TROUBLESHOOTING WIRING
PROBLEMS; WIRING DIAGRAMSÐ
GENERAL INFORMATION (XJ)...........8W-5
TUBE AXLE (2WD), MODEL 30 AXLE......2-22
TUBE CAP, FUEL TANK FILLER;
EMISSION CONTROL SYSTEMS......25-4,25-7
TUBE CAP, FUEL TANK FILLER; FUEL
SYSTEM............................14-13
TUBE, NO-LEAD FUEL TANK FILLER......14-13
TUBES/LINES/HOSES AND CLAMPS,
FUEL..........................14-62,14-9
TURN RELAY, LEFT; TRAILER TOW (XJ) . 8W-54-1
TURN RELAY, LEFT; TRAILER TOW
(XJ-RHD).........................8W-54-1
TURN RELAY, RIGHT; TRAILER TOW
(XJ).............................8W-54-1
TURN RELAY, RIGHT; TRAILER TOW
(XJ-RHD).........................8W-54-1
TURN SIGNAL INDICATOR LAMPS;
INSTRUMENT CLUSTER (XJ).........8W-40-2
TURN SIGNAL INDICATOR LAMPS;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
TURN SIGNAL RELAY; TURN SIGNALS
(XJ-RHD).........................8W-52-1
TURN SIGNAL SYSTEM.................8J-1
TURN SIGNAL SYSTEM - YJ.............8J-3
TURN SIGNAL/HAZARD WARNING
SWITCH REMOVE/INSTALL - YJ..........8J-5
TURN SIGNAL/HAZARD WARNING
SYSTEM - XJ..........................8J-3
TURN SIGNALS; TURN SIGNALS (YJ) . . 8W-52-1
TURN SIGNAL/TAIL LAMP BULB
REPLACEMENTÐXJ, BACK-UP/REAR.....8L-12
TURN SIGNAL/TAIL LAMP BULB
REPLACEMENTÐYJ, BACK-UP/REAR.....8L-28
TWO-WHEEL-DRIVE VEHICLE TOWINGÐ
XJ .................................0-11
U-JOINTS, PROPELLER SHAFTS.........16-15
UNBALANCE.........................16-3
UNDERHOOD LAMP; INTERIOR
LIGHTING (XJ)....................8W-44-2
UNDERHOOD LAMP; INTERIOR
LIGHTING (XJ-RHD)................8W-44-1
UNDERHOOD LAMP; INTERIOR
LIGHTING (YJ)....................8W-44-1
UNDERHOOD LAMP BULB
REPLACEMENTÐXJ..................8L-13
UNDERHOOD LAMP BULB
REPLACEMENTÐYJ..................8L-29
UNDERHOOD LAMP REPLACEMENTÐXJ . . 8L-13
UNDERHOOD LAMP REPLACEMENTÐYJ . . 8L-29
UNDERHOOD LAMP SERVICE
INFORMATIONÐXJ...................8L-12
UNDERHOOD LAMP SERVICE
INFORMATIONÐYJ...................8L-28
UNIT (ECU), ELECTRONIC CONTROL......5-34
UNIT, FUEL GAUGE SENDING...........14-16
UNIT (HCU), HYDRAULIC CONTROL.......5-33
UNIT, HYDRAULIC CONTROL; ANTI-LOCK
BRAKES (XJ)......................8W-32-2
UNIT, HYDRAULIC CONTROL; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-2
UNIT, HYDRAULIC CONTROL; ANTI-LOCK
BRAKES (YJ)......................8W-32-2
UNIVERSAL JOINT ANGLE
MEASUREMENT.......................16-4
UNIVERSAL JOINT REPLACEMENT.......16-10
UNIVERSAL JOINTS...................16-2
UNLOCK RELAY; POWER DOOR LOCKS
(XJ).............................8W-61-1
UNLOCK RELAY; POWER DOOR LOCKS
(XJ-RHD).........................8W-61-1
UPPER SUSPENSION ARM..............2-12
UPSHIFT LAMP; FUEL/IGNITION (XJ) . . . 8W-30-5
UP-SHIFT LAMP; INSTRUMENT CLUSTER
(YJ)
.............................8W-40-2
UPSHIFT LAMP; TRANSMISSION
CONTROLS (XJ)
...................8W-31-1
UPSHIFT LAMP; TRANSMISSION
CONTROLS (YJ)
...................8W-31-1
UP-SHIFT LAMP, MANUAL
TRANSMISSION; INSTRUMENT
CLUSTER (XJ)
.....................8W-40-2
USAGE, INSTALLATION METHODS AND
PARTS
...............................6-4USAGE STATEMENT, FUEL...............14-1
USAGE STATEMENTÐGAS ENGINES,
FUEL...............................0-19
USE THIS GROUP, HOW TO; WIRING
DIAGRAMS (XJ)......................8W-1
USE THIS GROUP, HOW TO; WIRING
DIAGRAMS (XJ-RHD)..................8W-1
USE THIS GROUP, HOW TO; WIRING
DIAGRAMS (YJ)......................8W-1
USING ALIGNMENT SCREENÐXJ,
HEADLAMP/FOG LAMP ADJUSTMENT.....8L-7
USING ALIGNMENT SCREENÐYJ,
HEADLAMP/FOG LAMP ADJUSTMENT....8L-23
USING ON-BOARD DIAGNOSTIC
SYSTEM; BATTERY/STARTING/
CHARGING SYSTEMS DIAGNOSTICS.....8A-22
USING ON-BOARD DIAGNOSTIC
SYSTEM; VEHICLE SPEED CONTROL
SYSTEM............................8H-5
VACUUM DISCONNECT AXLEÐYJ
VEHICLES...........................2-27
VACUUM HOSE ROUTING SCHEMATICS....25-2
VACUUM MOTOR, FRESH AIR DOOR.....24-34
VACUUM MOTOR REPLACEMENT, A/C
RECIRCULATING DOOR................24-27
VACUUM MOTOR REPLACEMENT,
HEATER/DEFROSTER/INSTRUMENT
PANEL OUTLET......................24-26
VACUUM RESERVOIR..................8H-1
VACUUM RESERVOIR REMOVE/INSTALL . . 8H-10
VACUUM ROUTING SCHEMATICÐ2.5L 4
CYLINDER ENGINE....................25-3
VACUUM ROUTING SCHEMATICÐ4.0L 6
CYLINDER ENGINE....................25-3
VACUUM SUPPLY TEST................8H-6
VACUUM TEST, POWER BOOSTER.........5-9
VALUES, CONVERSION FORMULAS AND
EQUIVALENT......................Intro.-11
VALVE AND SPRING IDENTIFICATION,
AW-4 .............................21-343
VALVE BODY ASSEMBLY AND
ADJUSTMENT......................21-153
VALVE BODY CHECK BALL DIMENSIONS,
AW-4 .............................21-341
VALVE BODY DISASSEMBLY AND
INSPECTION.......................21-147
VALVE BODY INSTALLATION,
TRANSMISSION.....................21-187
VALVE BODY OVERHAUL,
TRANSMISSION.....................21-250
VALVE BODY REMOVAL, TRANSMISSION . 21-186
VALVE BODY SERVICE...............21-104
VALVE BODY SOLENOIDS,
TRANSMISSION.....................21-184
VALVE CABLE ADJUSTMENT,
TRANSMISSION THROTTLE............21-71
VALVE CABLE ADJUSTMENT (XJ/YJ),
THROTTLE.........................21-101
VALVE COMPONENT REPLACEÐ
CYLINDER HEAD NOT REMOVED.....9-23,9-65
VALVE, EXPANSION..............24-31,24-35
VALVE FITTING O-RING SEAL, FLOW
CONTROL..........................19-14
VALVE, FUEL TANK PRESSURE
RELIEF/ROLLOVER..............14-16,14-62
VALVE INSTALLATION (WITH ABS),
MASTER CYLINDER AND
COMBINATION........................5-20
VALVE, MASTER CYLINDERÐ
COMBINATION
........................5-15
VALVE, PRESSURE RELIEF/ROLLOVER
. 25-6,25-7
VALVE REMOVAL (WITH ABS), MASTER
CYLINDER AND COMBINATION
...........5-17
VALVE REPLACEMENT (NON-ABS),
COMBINATION
........................5-16
VALVE SERVICE, CONVERTER
DRAINBACK CHECK
..................21-113
VALVE SHAFT OVERHAUL, MANUAL
.....21-215
VALVE SHAFT SEAL REPLACEMENT,
MANUAL
..........................21-187
VALVE SPRINGS AND OIL SEALS
.........9-23
VALVE SPRINGS, VALVES
...........9-27,9-69
VALVE STEM SEAL AND SPRING
REPLACEMENT
.......................9-65
VALVE TEST, POWER BOOSTER CHECK
.....5-9
VALVE TIMING
....................9-30,9-71
VALVES AND VALVE SPRINGS
.......9-27,9-69VANITY MIRROR LAMPS, VISOR;
INTERIOR LIGHTING (XJ)............8W-44-2
VANITY MIRROR LAMPS, VISOR;
INTERIOR LIGHTING (XJ-RHD)........8W-44-1
VANITY MIRROR TROUBLE
DIAGNOSISÐXJ, LIGHTED.............8L-16
VANITY MIRRORÐXJ, LIGHTED.........8L-16
VARIANCE, PINION GEAR DEPTH; FRONT
SUSPENSION AND AXLE................2-40
VARIANCE, PINION GEAR DEPTH; REAR
SUSPENSION AND AXLES...........3-22,3-39
VARIATION ADJUSTMENT, COMPASS......8C-5
VARIATION, DISC BRAKE ROTOR
THICKNESS..........................5-52
VEHICLE CODE DECODING............Intro.-5
VEHICLE CODE DESIGNATIONS........Intro.-1
VEHICLE CODE PLATE...............Intro.-4
VEHICLE CONTROL AND DISPLAY
SYMBOLS........................Intro.-10
VEHICLE CONTROL AND DISPLAY
SYMBOLS, INTERNATIONAL...........Intro.-5
VEHICLE DESIGNATIONS.............Intro.-1
VEHICLE DIMENSION DATA.....Intro.-5,Intro.-6
VEHICLE EMISSION CONTROL
INFORMATION (VECI) LABEL............25-1
VEHICLE, GEAR ADJUSTMENTS IN.......19-39
VEHICLE IDENTIFICATION NUMBER (VIN)
DECODING........................Intro.-4
VEHICLE IDENTIFICATION NUMBER (VIN)
PLATE ............................Intro.-4
VEHICLE, LABELS AND PLATESÐXJ......Intro.-2
VEHICLE, LABELS AND PLATESÐYJ....Intro.-3
VEHICLE LOAD DATA................Intro.-5
VEHICLE LOAD DATAÐXJ............Intro.-7
VEHICLE LOAD DATAÐYJ............Intro.-8
VEHICLE SAFETY CERTIFICATION LABEL . Intro.-4
VEHICLE SPEED CONTROL; VEHICLE
SPEED CONTROL (XJ)..............8W-33-1
VEHICLE SPEED CONTROL; VEHICLE
SPEED CONTROL (XJ-RHD)..........8W-33-1
VEHICLE SPEED SENSOR; FUEL SYSTEM . . 14-66
VEHICLE SPEED SENSOR; FUEL/
IGNITION (XJ).....................8W-30-2
VEHICLE SPEED SENSOR; FUEL/
IGNITION (YJ).....................8W-30-3
VEHICLE SPEED SENSOR; VEHICLE
SPEED CONTROL SYSTEM..........8H-1,8H-5
VEHICLE SPEED SENSOR; FUEL/
IGNITION (XJ-RHD)................8W-30-2
VEHICLE SPEED SENSOR TEST.........14-48
VEHICLE SPEED SENSORÐPCM INPUT . . . 14-25
VEHICLE TOWING, FOUR-WHEEL-DRIVE . . . 0-12
VEHICLE TOWINGÐXJ, TWO-WHEEL-
DRIVE..............................0-11
VEHICLE VIBRATION..................22-10
VENT DOOR CONTROL CABLES.........24-32
VENT WINDOW GLASSÐXJ, REAR
QUARTER..........................23-73
VENT WINDOW GLASSÐYJ, FULL-
METAL DOOR......................23-137
VENTILATION SYSTEM, CRANKCASE;
EMISSION CONTROL SYSTEMS..........25-5
VENTILATION SYSTEM, CRANKCASE;
LUBRICATION AND MAINTENANCE........0-19
VENTÐYJ, HARD TOP ROOF..........23-127
VIBRATION; FRONT SUSPENSION AND
AXLE...............................2-19
VIBRATION; PROPELLER SHAFTS.........16-3
VIBRATION; REAR SUSPENSION AND
AXLES..............................3-10
VIBRATION DAMPER...............9-30,9-72
VIBRATION DIAGNOSIS
...........22-10,22-11
VIBRATION, DRIVELINE
.................16-3
VIBRATION, TIRE NOISE OR
.............22-4
VIBRATION TYPES
....................22-10
VIBRATION, VEHICLE
.................22-10
VISCOUS FAN DRIVE
...................7-34
VISOR VANITY MIRROR LAMPS;
INTERIOR LIGHTING (XJ)
............8W-44-2
VISOR VANITY MIRROR LAMPS;
INTERIOR LIGHTING (XJ-RHD)
........8W-44-1
VISUAL INSPECTION
..................14-35
VOLTAGE, OPEN CIRCUIT
...............8A-6
VOLTAGE SPECIFICATIONS, OUTPUT
.....8A-23
VOLTAGEÐPCM INPUT, BATTERY
........14-21
WARNING LAMP, ABS; ANTI-LOCK
BRAKES (XJ)
......................8W-32-2
JINDEX 31
Description Group-Page Description Group-Page Description Group-Page

STARTING SYSTEM
STARTING SYSTEM
AUTOMATIC TRANSMISSIONS
Circuit A0 from the battery is double crimped at
the positive battery post. One branch of circuit A0
(battery positive cable) connects to the engine starter
motor. The other A0 branch supplies voltage to the
bus bar in the Power Distribution Center (PDC).
The PDC supplies battery voltage to the engine
starter motor solenoid on circuit T40 when the coil
side of the engine starter motor relay energizes. Cir-
cuit A1 from the fuse 4 in the PDC supplies battery
voltage to the contact side of the starter motor relay.
The ignition switch supplies battery voltage to the
coil side of the starter motor relay on circuit A41
when the key is moved to the START position and
the Park/Neutral position switch is closed. Ground
for the coil side of the starter motor relay is supplied
by the case grounded Park/Neutral position switch.
Circuit T41 connects the coil side of the relay to the
Park/Neutral position switch.
When the starter motor relay energizes and the
contacts close, circuit T40 supplies battery voltage to
the starter motor solenoid. Circuit A0 from the bat-
tery supplies voltage to the starter motor when the
solenoid energizes.
MANUAL TRANSMISSIONS
Circuit A0 from the battery is double crimped at
the positive battery post. One branch of circuit A0
(battery positive cable) connects to the battery
starter motor. The other A0 branch supplies voltage
to the bus bar in the Power Distribution Center
(PDC).The PDC supplies battery voltage to the engine
starter motor solenoid on circuit T40 when the coil
side of the engine starter motor relay energizes. Cir-
cuit A1 from the fuse 4 in the PDC supplies battery
voltage to the contact side of the starter motor relay.
The ignition switch supplies battery voltage to the
coil side of the starter motor relay on circuit A41
when the key is moved to the START position. Cir-
cuit T41 from the coil side of the relay connects to a
Z2 jumper wire in the back-up lamp switch. Circuit
Z2 provides ground for the starter motor relay.
When the starter motor relay energizes and the
contacts close, circuit T40 supplies battery voltage to
the starter motor solenoid. Circuit A0 from the bat-
tery supplies voltage to the starter motor when the
solenoid energizes.
HELPFUL INFORMATION
²The Park/Neutral switch closes when the trans-
mission is in either the PARK or NEUTRAL posi-
tions.
²Circuit T41 also connects to cavity 30 of the Pow-
ertrain Control Module (PCM). This input tells the
PCM the operator is starting the vehicle.
DIAGRAM INDEX
Component Page
Engine Starter Motor......................8W-21-2
Engine Starter Motor Relay..................8W-21-2
Ignition Switch..........................8W-21-2
Park/Neutral Position Switch.................8W-21-2
Power Distribution Center (PDC)...............8W-21-2
Powertrain Control Module (PCM)..............8W-21-2
Fuse 4 (PDC)...........................8W-21-2
J8W-21 STARTING SYSTEMÐYJ VEHICLES 8W - 21 - 1

The PCM provides a ground for the engine coolant
temperature sensor signal (circuit K2) through circuit
K4. Circuit K4 connects to cavity 4 of the PCM con-
nector.
HELPFUL INFORMATION
Circuit K4 splices to supply ground for the signals
from the following:
²Heated oxygen sensor
²Camshaft position sensor
²Crankshaft position sensor
²Intake air temperature sensor
²Throttle position sensor
²Manifold absolute pressure sensor
²Vehicle speed sensor
THROTTLE POSITION SENSOR
From the Powertrain Control Module (PCM), cir-
cuit K6 supplies 5 volts to the Throttle Position Sen-
sor (TPS). Circuit K6 connects to cavity 6 of the
PCM.
Circuit K22 delivers the TPS signal to the PCM.
Circuit K22 connects to cavity 22 of the PCM.
The PCM provides a ground for the throttle posi-
tion sensor signal (circuit K22) through circuit K4.
Circuit K4 connects to cavity 4 of the PCM.
HELPFUL INFORMATION
Refer to Group 14 for throttle position sensor oper-
ation.
Circuit K6 splices to supply 5 volts to the Manifold
Absolute Pressure (MAP) sensor.
Circuit K4 splices to supply ground for the signals
from the following:
²Heated oxygen sensor
²Camshaft position sensor
²Crankshaft position sensor
²Intake air temperature sensor
²Manifold absolute pressure sensor
²Engine coolant temperature sensor
²Vehicle speed sensor
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
From the Powertrain Control Module (PCM), cir-
cuit K6 supplies 5 volts to the Manifold Absolute
Pressure (MAP) sensor. Circuit K6 connects to cavity
6 of the PCM.
Circuit K1 delivers the MAP signal to the PCM.
Circuit K1 connects to cavity 1 of the PCM.
The PCM provides a ground for the MAP sensor
signal (circuit K1) through circuit K4. Circuit K4 con-
nects to cavity 4 of the PCM.
HELPFUL INFORMATION
Refer to Group 14 for MAP sensor operation.
Circuit K6 splices to supply 5 volts to the throttle
position sensor.Circuit K4 splices to supply ground for the signals
from the following:
²Heated oxygen sensor
²Camshaft position sensor
²Crankshaft position sensor
²Intake air temperature sensor
²Throttle position sensor
²Engine coolant temperature sensor
²Vehicle speed sensor
INTAKE AIR TEMPERATURE SENSOR
The intake air temperature sensor provides an in-
put to the Powertrain Control Module (PCM) on cir-
cuit K21. Circuit K21 connects to cavity 21 of the
PCM.
From circuit K21, the intake air temperature sen-
sor draws voltage from the PCM. The sensor is a
variable resistor. As intake air temperature changes,
the resistance in the sensor changes, causing a
change in current draw.
The PCM provides a ground for the intake air tem-
perature sensor signal (circuit K21) through circuit
K4. Circuit K4 connects to cavity 4 of the PCM.
HELPFUL INFORMATION
Circuit K4 splices to supply ground for the signals
from the following:
²Heated oxygen sensor
²Camshaft position sensor
²Crankshaft position sensor
²Throttle position sensor
²Manifold absolute pressure sensor
²Engine coolant temperature sensor
²Vehicle speed sensor
PARK/NEUTRAL POSITION SWITCH
When closed, the case-grounded park/neutral posi-
tion switch provides a ground path on circuit T41 for
the coil side of the starter motor relay. Circuit A41
from the ignition switch provides battery voltage to
the coil side of the relay.
Circuit T41 splices to cavity 30 of the Powertrain
Control Module (PCM). The park/neutral position
switch provides an input to the (PCM).
HELPFUL INFORMATION
²In the START position, the ignition switch con-
nects circuit A1 from the Power Distribution Center
(PDC) to circuit A41. Fuse 4 in the fuse block pro-
tects circuits A1 and A41.
²The Park/Neutral position switch and back-up
lamp switch are molded together.
POWER STEERING PRESSURE SWITCH
The Powertrain Control Module (PCM) supplies
voltage to the power steering pressure switch on cir-
cuit K10. Circuit Z1 provides ground for the switch.
When the switch closes, voltage flows through the
8W - 30 - 4 8W-30 FUEL/IGNITIONÐYJ VEHICLESJ

AIR CONDITIONING AND HEATER
GENERAL INFORMATION
On vehicles built with the 2.5L engine, the electri-
cal system has provisions for dealer installed air con-
ditioning. The provisions consist of two connectors
which include circuitry for:
²Circuit C1 - Ignition feed
²Circuit C21 - Blower motor switch
²Circuit C91 - A/C request signal
²Circuit C20 - A/C select signal
²Circuit C13 - Ground for coil side of A/C compres-
sor clutch relay
²Circuit G5 - Battery voltage for coil side of A/C
compressor clutch relay
A/C COMPRESSOR
When the ignition switch is in the RUN position it
connects circuit A1 from fuse 4 in the Power Distri-
bution Center (PDC) to circuit A22. Circuit A22 sup-
plies battery voltage to fuse 12 in the fuse block.
Fuse 12 powers circuit C1.
Circuit C1 supplies battery voltage to the A/C
blower switch. Circuit C21 connects the A/C blower
switch to the A/C low pressure switch.
When the operator selects A/C operation, the A/C
blower switch provides the A/C request signal to cav-
ity 27 of the Powertrain Control Module (PCM) on
circuit C91. At the same time, the blower switch sup-
plies voltage through the A/C thermostat to circuit
C21.
Circuit C21 supplies voltage to the A/C low pres-
sure switch. When the A/C low pressure switch
closes, circuit C20 provides battery voltage to the
contact side of the A/C compressor clutch relay and
provides the A/C select signal to the PCM. Circuit
C20 is double crimped at the contact side of the re-
lay. The C20 circuit branch from the relay supplies
the A/C select input to cavity 28 of the PCM.
After receiving the A/C request signal, the PCM en-
ergizes the A/C compressor clutch relay by providing
ground for the coil side of the relay on circuit C13.
Circuit C13 connects to cavity 34 of the PCM.
Circuit G5 from fuse 9 in the fuse block supplies
voltage to the coil side of the relay. In the START or
RUN positions the ignition switch connects circuit A1
from fuse 4 in the PDC with circuit A21. Circuit A21
connects to the fuse block bus bar that powers circuit
C5 through fuse 9.
When the PCM energizes the A/C compressor
clutch relay, the relay switches from its normally
grounded position to connect circuit C20 to circuit
C3. Circuit C3 supplies voltage to the case grounded
A/C compressor clutch.
HELPFUL INFORMATION
²Circuit G5 is double crimped at the coil side of the
A/C compressor clutch relay. The G5 branch from the
relay continues to the back-up lamp switch.
²Circuit Z1 provides ground for the A/C compressor
clutch relay when the relay is in its normally
grounded position.
A/C-HEATER BLOWER MOTOR
When the ignition switch is in the RUN position it
connects circuit A1 from fuse 4 in the Power Distri-
bution Center (PDC) to circuit A22. Circuit A22 sup-
plies battery voltage to fuse 12 in the fuse block.
Fuse 12 powers circuit C1.
Circuit C1 supplies battery voltage to the A/C
blower switch. In the LOW position, the A/C blower
switch supplies voltage to the low speed brush of the
blower motor. In the MEDIUM position, the switch
supplies voltage to the medium speed bush of the
blower motor. In the HIGH position, the switch sup-
plies voltage to the high speed brush of the blower
motor.
The blower motor has a field jumper. The ground
circuit for the blower motor connects to the cigar
lighter. Circuit Z1 provides ground for the blower mo-
tor and the cigar lighter.
HELPFUL INFORMATION
²Check fuse 4 in the PDC.
²Check fuse 12 in the fuse block.
DIAGRAM INDEX
Component Page
A/C Compressor Clutch.....................8W-42-4
A/C Compressor Clutch Relay................8W-42-4
A/C Thermostat..........................8W-42-5
Blower Motor...........................8W-42-5
Blower Motor Switch......................8W-42-5
Fuse 4 (PDC).........................8W-42-4, 6
Fuse 7 (Fuse Block).......................8W-42-6
Fuse 9 (Fuse Block).....................8W-42-4, 6
Fuse 12 (Fuse Block)....................8W-42-4, 6
Ignition Switch........................8W-42-4, 6
Powertrain Control Module.................8W-42-4, 6
8W - 42 - 2 8W-42 AIR CONDITIONING/HEATERÐYJ 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