1994 JEEP CHEROKEE OBD port
[x] Cancel search: OBD portPage 117 of 1784
MULTI-PORT FUEL INJECTION (MFI)ÐGENERAL DIAGNOSIS
INDEX
page page
Automatic Shutdown (ASD) Relay Testing...... 43
Camshaft Position Sensor Test.............. 43
Crankshaft Position Sensor Test............. 44
Diagnostic Trouble Code (DTC).............. 51
DRB Scan Tool.......................... 51
Engine Coolant Temperature Sensor Test...... 43
Extended Idle Switch Test.................. 45
Fuel Pump Relay Testing.................. 44
Fuel System Pressure Test................. 48
General Information....................... 32
Idle Air Control Motor Test................. 46
Injector Test............................ 48
Intake Air Temperature Sensor Test.......... 43Manifold Absolute Pressure (MAP) Sensor Test . 44
On-Board Diagnostics (OBD)................ 48
Oxygen Sensor (O2S) Heating Element Test.... 45
Powertrain Control Module (PCM) 60-Way
Connector............................ 38
RelaysÐOperation/Testing.................. 47
Starter Motor Relay Test................... 48
System Schematics....................... 38
Throttle Position Sensor (TPS) Test.......... 45
Torque Converter Clutch Relay Test.......... 45
Vehicle Speed Sensor Test................. 45
Visual Inspection......................... 32
GENERAL INFORMATION
All 2.5L 4 cylinder and 4.0L 6 cylinder engines are
equipped with sequential Multi-Port Fuel Injection
(MFI). The MFI system provides precise air/fuel ra-
tios for all driving conditions.
VISUAL INSPECTION
A visual inspection for loose, disconnected, or incor-
rectly routed wires and hoses should be made. This
should be done before attempting to diagnose or ser-
vice the fuel injection system. A visual check will
help spot these faults and save unnecessary test and
diagnostic time. A thorough visual inspection will in-
clude the following checks:
(1) Verify that the 60-way connector is fully inserted
into the connector of the Powertrain Control Module
(PCM) (Figs. 1 or 2). Verify that the connector mount-
ing bolt is tightened to 4 Nzm (35 in. lbs.) torque.
(2) Inspect the battery cable connections. Be sure
they are clean and tight.
(3) Inspect fuel pump relay and air conditioning com-
pressor clutch relay (if equipped). Inspect ASD relay andradiator fan relay (if equipped) connections. Inspect starter
motor relay connections. Inspect relays for signs of physical
damage and corrosion. The relays are installed in the
Power Distribution Center (PDC) (Figs. 3 or 4).
Fig. 1 PCMÐYJ Models
Fig. 2 PCMÐXJ Models
Fig. 3 PDCÐYJ Models
14 - 32 FUEL SYSTEMJ
Page 292 of 1784
USING ON-BOARD DIAGNOSTIC SYSTEM
OPERATION OF ON-BOARD DIAGNOSTIC
(OBD) SYSTEM
The Powertrain Control Module (PCM) monitors
critical input and output circuits of the charging sys-
tem making sure they are OK. Some are checked
continuously and some are checked only under cer-
tain conditions.
If OBD system senses that one critical circuit is
bad during the monitoring cycle, it will put a diag-
nostic trouble code into memory. Each input and out-
put circuit monitored by the OBD system has its own
diagnostic trouble code. The diagnostic trouble code
(DTC) will stay in memory as long as the circuit con-
tinues to be bad. If the problem does not happen
again after the fault code is put into memory, the
PCM is programmed to clear the memory after 50 en-
gine starts.
DIAGNOSTIC TROUBLE CODES (DTC)
Diagnostic trouble codes are two-digit numbers
flashed on Malfunction Indicator (Check Engine)
Lamp that identify which circuit is bad. In most
cases they do not identify which component in a cir-
cuit is bad. A trouble code description can be read us-
ing the DRB scan tool. Refer to Group 14 - Fuel
Systems for more information. Therefore, a DTC is
only a symptom, not necessarily the cause for the
problem. In some cases, because of the design of the
driveability test procedure, a DTC can be the reason
for the problem. It is important that the test proce-
dure be followed to understand what caused the DTC
of the on-board diagnostic system to be set.
HOW TO USE MALFUNCTION INDICATOR (CHECK
ENGINE) LAMP FOR DIAGNOSTIC TROUBLE
CODES
To start this function, cycle the ignition switch ON-
OFF-ON-OFF-ON within 5 seconds and any trouble
code stored in the PCM will be displayed. The Mal-
function Indicator (Check Engine) Lamp will display
a DTC by flashing on and off. There is a short pause
between flashes and a longer pause between digits.
All codes displayed are two digit numbers with a 4
second pause between codes.
An example of a code is as follows:
(1) Lamp on for 2 seconds, then turns off.
(2) Lamp flashes 4 times pauses and then flashes 1
time.
(3) Lamp pauses for 4 seconds, flashes 4 times,
pauses and then flashes 7 times.
The 2 codes are 41 and 47. Any number of codes
can be displayed as long as they are in memory. The
lamp will flash until all are displayed (55 = End of
test).
CHARGING SYSTEM DIAGNOSTIC TROUBLE
CODES
See Generator Diagnostic Trouble Code chart for
diagnostic trouble codes which apply to the charging
system. Refer to the Powertrain Diagnostic Proce-
dures manal to diagnose an On-Board Diagnostic
System, Trouble Code.
GENERATOR DIAGNOSTIC TROUBLE CODE (DTC)
JBATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS 8A - 19
Page 993 of 1784
MULTI-PORT FUEL INJECTION (MFI)ÐGENERAL DIAGNOSIS
INDEX
page page
Automatic Shutdown (ASD) Relay Testing...... 43
Camshaft Position Sensor Test.............. 43
Crankshaft Position Sensor Test............. 44
Diagnostic Trouble Code (DTC).............. 51
DRB Scan Tool.......................... 51
Engine Coolant Temperature Sensor Test...... 43
Extended Idle Switch Test.................. 45
Fuel Pump Relay Testing.................. 44
Fuel System Pressure Test................. 48
General Information....................... 32
Idle Air Control Motor Test................. 46
Injector Test............................ 48
Intake Air Temperature Sensor Test.......... 43Manifold Absolute Pressure (MAP) Sensor Test . 44
On-Board Diagnostics (OBD)................ 48
Oxygen Sensor (O2S) Heating Element Test.... 45
Powertrain Control Module (PCM) 60-Way
Connector............................ 38
RelaysÐOperation/Testing.................. 47
Starter Motor Relay Test................... 48
System Schematics....................... 38
Throttle Position Sensor (TPS) Test.......... 45
Torque Converter Clutch Relay Test.......... 45
Vehicle Speed Sensor Test................. 45
Visual Inspection......................... 32
GENERAL INFORMATION
All 2.5L 4 cylinder and 4.0L 6 cylinder engines are
equipped with sequential Multi-Port Fuel Injection
(MFI). The MFI system provides precise air/fuel ra-
tios for all driving conditions.
VISUAL INSPECTION
A visual inspection for loose, disconnected, or incor-
rectly routed wires and hoses should be made. This
should be done before attempting to diagnose or ser-
vice the fuel injection system. A visual check will
help spot these faults and save unnecessary test and
diagnostic time. A thorough visual inspection will in-
clude the following checks:
(1) Verify that the 60-way connector is fully inserted
into the connector of the Powertrain Control Module
(PCM) (Figs. 1 or 2). Verify that the connector mount-
ing bolt is tightened to 4 Nzm (35 in. lbs.) torque.
(2) Inspect the battery cable connections. Be sure
they are clean and tight.
(3) Inspect fuel pump relay and air conditioning com-
pressor clutch relay (if equipped). Inspect ASD relay andradiator fan relay (if equipped) connections. Inspect starter
motor relay connections. Inspect relays for signs of physical
damage and corrosion. The relays are installed in the
Power Distribution Center (PDC) (Figs. 3 or 4).
Fig. 1 PCMÐYJ Models
Fig. 2 PCMÐXJ Models
Fig. 3 PDCÐYJ Models
14 - 32 FUEL SYSTEMJ
Page 1751 of 1784
DIAGNOSTIC INSPECTIONS, STARTER
SYSTEM............................8A-9
DIAGNOSTIC PROCEDURES;
ELECTRICAL........................8A-15
DIAGNOSTIC PROCEDURES; OVERHEAD
CONSOLE...........................8C-1
DIAGNOSTIC SYSTEM, USING ON-
BOARD............................8A-19
DIAGNOSTIC TROUBLE CODE,
CHECKING FOR.......................8H-5
DIAGNOSTIC TROUBLE CODE (DTC),
GENERATOR........................8A-19
DIAGNOSTIC TROUBLE CODES, INDICATOR
(CHECK ENGINE) LAMP...............8A-19
DIAGNOSTICS, BATTERY/STARTING/
CHARGING SYSTEMS..................8A-1
DIAGNOSTICS CHART, BATTERY...........8A-7
DIAGNOSTICS (OBD), ON-BOARD;
COOLING SYSTEM.....................7-4
DIAGNOSTICS (OBD), ON-BOARD; FUEL
SYSTEM............................14-48
DIAGNOSTICS (OBD), ON-BOARD;
IGNITION SYSTEMS..................8D-19
DIAGNOSTICS/SERVICE PROCEDURES......8D-8
DIAGRAM, AIRFLOW...................24-23
DIAGRAM SHEETS AND INDEXES,
WIRING............................8W-1
DIAGRAMS, WIRING....................8A-1
DIAGRAMS YJ, WIRING................8W-73
DIFFERENTIAL AND PINION MEASUREMENT;
FRONT SUSPENSION AND AXLE..........2-38
DIFFERENTIAL AND PINION
MEASUREMENT; REAR SUSPENSION
AND AXLES..........................3-20
DIFFERENTIAL ASSEMBLY; FRONT
SUSPENSION AND AXLE................2-36
DIFFERENTIAL ASSEMBLY; REAR
SUSPENSION AND AXLES...............3-19
DIFFERENTIAL DISASSEMBLY; FRONT
SUSPENSION AND AXLE................2-34
DIFFERENTIAL DISASSEMBLY; REAR
SUSPENSION AND AXLES...............3-17
DIFFERENTIAL INSTALLATION; FRONT
SUSPENSION AND AXLE................2-43
DIFFERENTIAL INSTALLATION; REAR
SUSPENSION AND AXLES...............3-24
DIFFERENTIAL, LIMITED SLIP..............3-8
DIFFERENTIAL OVERHAUL................3-45
DIFFERENTIAL REMOVAL; FRONT
SUSPENSION AND AXLE................2-32
DIFFERENTIAL REMOVAL; REAR
SUSPENSION AND AXLES...............3-16
DIFFERENTIAL SERVICE..................3-33
DIFFERENTIAL SHIM PACK
MEASUREMENT AND ADJUSTMENT.......2-42
DIFFERENTIAL, TRAC-LOK................3-44
DIMENSION DATA, VEHICLE . . . INTRO.-3,INTRO.-4
DIMENSIONS, AW-4 VALVE BODY CHECK
BALL.............................21-328
DIMENSIONS, DESIGNATIONS, LABELS/
PLATES, CODES...................INTRO.-1
DIMMER SWITCH REPLACEMENT,
HEADLAMP..........................8L-6
DIRECT CLUTCH OVERHAUL............21-219
DISASSEMBLY........................19-59
DISASSEMBLY AND INSPECTION, VALVE
BODY.............................21-138
DISASSEMBLY AND OVERHAUL,
TRANSFER CASE..............21-277,21-297
DISASSEMBLY AND OVERHAUL,
TRANSMISSION; TRANSMISSION AND
TRANSFER CASE.................21-5,21-36
DISASSEMBLY, CALIPER.................5-27
DISASSEMBLYÐCOLUMN OR CONSOLE
SHIFT..............................19-50
DISASSEMBLY, DIFFERENTIAL; FRONT
SUSPENSION AND AXLE................2-34
DISASSEMBLY, DIFFERENTIAL; REAR
SUSPENSION AND AXLES...............3-17
DISASSEMBLY, GEAR...................19-37
DISASSEMBLY INFORMATION, GEAR.......19-24
DISASSEMBLY, TRANSMISSION
....21-112,21-192
DISC AND PLATE THICKNESS, AW-4
CLUTCH
...........................21-325
DISC BRAKE ROTOR REFINISHING
.........5-32
DISC BRAKE ROTOR RUNOUT
.............5-31DISC BRAKE ROTOR THICKNESS..........5-31
DISC BRAKE ROTOR THICKNESS
VARIATION..........................5-31
DISC BRAKES..........................5-24
DISC BRAKESHOE INSTALLATION..........5-26
DISC BRAKESHOE REMOVAL..............5-25
DISC INSTALLATION, CLUTCH COVER.......6-10
DISC REMOVAL, CLUTCH COVER..........6-10
DISCHARGE, SYSTEM...................24-4
DISCONNECT AXLEÐYJ VEHICLES,
VACUUM............................2-26
DISCONNECT AXLE/SHIFT MOTOR
DIAGNOSIS..........................2-27
DISPLAY, ABS WARNING LIGHT............5-3
DISPLAY, BRAKE WARNING LIGHT..........5-4
DISPLAY SYMBOLS, INTERNATIONAL
VEHICLE CONTROL................INTRO.-3
DISPLAY SYMBOLS, VEHICLE CONTROL . INTRO.-7
DISPOSAL, LIFTGATE SUPPORT ROD
CYLINDER..........................23-70
DISTRIBUTOR........................8D-23
DISTRIBUTOR CAP.....................8D-9
DISTRIBUTOR CAP AND ROTOR, IGNITION
CABLES.............................0-18
DISTRIBUTOR ROTOR..................8D-10
DISTRIBUTORS........................8D-3
DOME LAMP REPLACEMENT.............8L-20
DOME/CARGO LAMP BULB
REPLACEMENTÐYJ VEHICLES,
HARDTOP..........................8L-20
DOME/COURTESY LAMP SERVICE
INFORMATION.......................8L-19
DOME/COURTESY LAMP TROUBLE
DIAGNOSIS.........................8L-19
DOOR ALIGNMENT ADJUSTMENTÐ
MAJOR............................23-47
DOOR ALIGNMENT ADJUSTMENTÐ
MINOR.............................23-46
DOOR ALIGNMENTÐMINOR, XJ..........23-46
DOOR ASSIST HANDLE, FULL-METAL.....23-175
DOOR BUMPERS, FUEL FILLER...........23-31
DOOR CONTROL CABLES, VENT..........24-39
DOOR EDGE GUARD/EDGE PROTECTOR
STRIP.............................23-61
DOOR EXTERNAL HANDLE...............23-55
DOOR FIXED WINDOW GLASS, REAR......23-53
DOOR, HALF-METAL SOFT TOP..........23-173
DOOR HINGE/HINGE PIN REPLACEMENT . . . 23-58
DOOR HINGES, FULL-METAL............23-179
DOOR INSIDE LATCH RELEASE AND
LOCK RODS.........................23-57
DOOR KEY LOCK CYLINDER.............23-54
DOOR KEY LOCK CYLINDER, FULL-METAL . 23-178
DOOR LATCH.........................23-56
DOOR LATCH ADJUSTMENT.............23-55
DOOR LATCH EXTERNAL RELEASE
HANDLE, FULL-METAL...............23-178
DOOR LATCH, FULL-METAL.............23-179
DOOR LATCH INSIDE RELEASE AND
LOCK HANDLE, FULL-METAL..........23-175
DOOR LATCH STRIKER, HALF-METAL.....23-175
DOOR LOCK SWITCH, PASSENGER.........8P-5
DOOR LOCKS, DIAGNOSING POWER . . . 8P-1,8P-9
DOOR LOCKS, POWER..................8P-10
DOOR LOCK/UNLOCK RELAY
REPLACEMENT......................8P-12
DOOR MIRROR (EXTERNAL), HALF METAL . . 23-158
DOOR MOTOR SWITCH REPLACEMENT,
BLOWER MOTOR/AIR.................24-39
DOOR OPENING WEATHERSTRIP SEALS,
DOOR WINDOW GLASS...............23-62
DOOR POWER LOCK SWITCHÐ2-DOOR
LEFT HAND DRIVE, DRIVERS............8P-2
DOOR POWER LOCK SWITCHÐ2-DOOR
RIGHT HAND DRIVE, DRIVERS...........8P-3
DOOR POWER LOCK SWITCHÐ4-DOOR,
DRIVERS............................8P-4
DOOR POWER WINDOW SWITCHÐ2-DOOR
LEFT HAND DRIVE, DRIVERS............8S-6
DOOR POWER WINDOW SWITCHÐ2-DOOR
RIGHT HAND DRIVE, DRIVERS...........8S-7
DOOR POWER WINDOW SWITCHÐ4-DOOR,
DRIVERS
............................8S-5
DOOR REMOVAL/INSTALLATION
..........23-40
DOOR RESTRAINT REPLACEMENT
........23-47
DOOR SERVICE, FULL-METAL
...........23-181DOOR SPACER BLOCKSÐTWO-DOOR
VEHICLES, FRONT....................23-60
DOOR TRIM PANEL....................23-35
DOOR TRIM PANEL, FULL-METAL........23-175
DOOR VACUUM MOTOR, FRESH AIR.......24-41
DOOR VACUUM MOTOR REPLACEMENT,
A/C RECIRCULATING AIR..............24-31
DOOR VACUUM MOTOR REPLACEMENT,
HEATER/DEFROSTER/INSTRUMENT
PANEL OUTLET......................24-30
DOOR VENT WINDOW, FRONT............23-50
DOOR VENT WINDOW GLASS, FULL-
METAL............................23-177
DOOR WATERDAM, FULL-METAL.........23-176
DOOR WEATHERSTRIP SEALS, FULL-
METAL............................23-180
DOOR WINDOW EXTERIOR MOULDINGS....23-61
DOOR WINDOW GLASS AND DOOR
OPENING WEATHERSTRIP SEALS........23-62
DOOR WINDOW GLASS, FRONT..........23-49
DOOR WINDOW GLASS, FULL-METAL.....23-178
DOOR WINDOW GLASS, REAR...........23-52
DOOR WINDOW GLASS REGULATOR,
FRONT.............................23-48
DOOR WINDOW GLASS REGULATOR,
FULL-METAL.......................23-177
DOOR WINDOW GLASS REGULATOR
HANDLE, FULL-METAL...............23-175
DOOR WINDOW GLASS REGULATOR,
REAR..............................23-51
DOOR WINDOW SWITCH, PASSENGER......8S-8
DOORS........................23-34,23-173
DOUBLE CARDAN (CV)..................16-10
DOWNSHIFT, HYDRAULIC FLOW DURING
FULL THROTTLE 3-2..................21-92
DOWNSHIFT, HYDRAULIC FLOW DURING
PART THROTTLE 3-2..................21-91
DRAG LINK......................19-14,19-17
DRAINING COOLING SYSTEM.............7-16
DRAW (IOD) DIAGNOSIS, IGNITION OFF.....8A-8
DRB SCAN TOOL; COOLING SYSTEM........7-5
DRB SCAN TOOL; EMISSION CONTROL
SYSTEMS...........................25-2
DRB SCAN TOOL; FUEL SYSTEM..........14-51
DRB SCAN TOOL; IGNITION SYSTEMS.....8D-10
DRIERÐ2.5L ENGINES, CONDENSER/
RECEIVER..........................24-31
DRIERÐ4.0L ENGINES, RECEIVER........24-32
DRIP RAIL MOULDINGÐXJ VEHICLES.....23-29
DRIVE AXLE ASSEMBLY REPLACEMENTÐXJ
VEHICLES; FRONT SUSPENSION AND
AXLE...............................2-21
DRIVE AXLE ASSEMBLY REPLACEMENTÐ
XJ VEHICLES; REAR SUSPENSION
AND AXLES......................3-11,3-30
DRIVE AXLE ASSEMBLY REPLACEMENTÐ
YJ VEHICLES; FRONT SUSPENSION
AND AXLE...........................2-21
DRIVE AXLE ASSEMBLY REPLACEMENTÐ
YJ VEHICLES; REAR SUSPENSION
AND AXLES..........................3-12
DRIVE AXLE, FRONT.....................2-3
DRIVE, BATTERY CLASSIFICATIONS AND
RATINGSÐLEFT HAND................8B-10
DRIVE, BATTERY CLASSIFICATIONS AND
RATINGSÐRIGHT HAND...............8B-10
DRIVE, BATTERY REPLACEMENTÐLEFT
HAND..............................8B-1
DRIVE, BATTERY REPLACEMENTÐ
RIGHT HAND.........................8B-2
DRIVE BELT, ACCESSORY................0-20
DRIVE BELT DIAGNOSIS, SERPENTINE......7-32
DRIVE, BELT SERVICEÐEXCEPT RIGHT
HAND...............................7-34
DRIVE, BELT SERVICEÐWITH RIGHT
HAND...............................7-35
DRIVE BELT TENSION...................7-38
DRIVE BELTS, ENGINE ACCESSORY........7-31
DRIVE, DRIVERS DOOR POWER LOCK
SWITCHÐ2-DOOR LEFT HAND
...........8P-2
DRIVE, DRIVERS DOOR POWER LOCK
SWITCHÐ2-DOOR RIGHT HAND
.........8P-3
DRIVE, DRIVERS DOOR POWER WINDOW
SWITCHÐ2-DOOR LEFT HAND
...........8S-6
DRIVE, DRIVERS DOOR POWER WINDOW
SWITCHÐ2-DOOR RIGHT HAND
.........8S-7
JINDEX7
Description Group-Page Description Group-Page Description Group-Page
Page 1759 of 1784
MODES OF OPERATION, OPEN LOOP/
CLOSED LOOP.......................14-27
MODULE, ELECTRICAL TESTS
AT POWERTRAIN CONTROL.............8H-6
MODULE, FUEL PUMP..............14-2,14-56
MODULE, INTERMITTENT WIPER..........8K-5
MODULE (PCM) 60-WAY CONNECTOR,
POWERTRAIN CONTROL...............14-38
MODULE (PCM), POWERTRAIN
CONTROL; EMISSION CONTROL
SYSTEMS...........................25-9
MODULE (PCM), POWERTRAIN CONTROL;
FUEL SYSTEM..................14-18,14-58
MODULE (PCM), POWERTRAIN CONTROL;
IGNITION SYSTEMS.........8D-6,8D-15,8D-28
MODULE REPLACEMENT, DRL............8L-16
MODULE REPLACEMENTÐXJ VEHICLES,
HEADLAMP DELAY...................8L-16
MODULE (TCM) SERVICE, TRANSMISSION
CONTROL.........................21-173
MODULEÐXJ VEHICLES, SENTINEL
HEADLAMP DELAY...................8L-15
MOTOR, A/C BLOWER..................24-43
MOTOR DIAGNOSIS, DISCONNECT AXLE/
SHIFT...............................2-27
MOTOR, FRESH AIR DOOR VACUUM.......24-41
MOTOR, FRONT WIPER.................8K-10
MOTOR (HEATING), BLOWER............24-40
MOTOR, IDLE AIR CONTROL (IAC)........14-56
MOTOR NOISE DIAGNOSIS, 2.5L
STARTER...........................8A-13
MOTORÐPCM OUTPUT, IDLE AIR
CONTROL (IAC)......................14-25
MOTOR RELAY TEST, STARTER...........14-48
MOTOR REMOVAL/INSTALLATION, 2.5L
STARTER............................8B-5
MOTOR REMOVAL/INSTALLATION,
4.0L STARTER........................8B-6
MOTOR REPLACEMENT, A/C
RECIRCULATING AIR DOOR VACUUM.....24-31
MOTOR REPLACEMENT, HEATER/
DEFROSTER/INSTRUMENT PANEL
OUTLET DOOR VACUUM...............24-30
MOTOR REPLACEMENT, POWER SEAT......8R-2
MOTOR REPLACEMENT, REAR WIPER.....8K-13
MOTOR RESISTORS REPLACEMENT,
BLOWER...........................24-35
MOTOR SERVICE PROCEDURES,
ENGINE STARTER.....................8B-4
MOTOR SPECIFICATIONS, 2.5L STARTER . . . 8B-11
MOTOR STALL TEST, ACTUATOR...........8P-6
MOTOR SWITCH REPLACEMENT,
BLOWER MOTOR/AIR DOOR............24-39
MOTOR TEST, IDLE AIR CONTROL........14-46
MOTOR TEST PROCEDURES ON
VEHICLE, ENGINE STARTER.............8A-9
MOTOR TORQUE SPECIFICATIONS,
STARTER...........................8B-11
MOTOR, WINDSHIELD WIPER.............8K-2
MOTOR/AIR DOOR MOTOR SWITCH
REPLACEMENT, BLOWER..............24-39
MOTOR/FAN REPLACEMENT, BLOWER.....24-26
MOULDING, BODY SIDE STEP...........23-145
MOULDING, WINDSHIELD REVEAL . . 23-73,23-183
MOULDING, WOODGRAIN...............23-19
MOULDINGÐXJ VEHICLES, DRIP RAIL.....23-29
MOULDINGÐXJ VEHICLES, WINDSHIELD
SIDE.............................23-114
MOULDING/CLADDING, BODY SIDE........23-19
MOULDINGS, DOOR WINDOW EXTERIOR . . . 23-61
MOUNTING, MATCH TIRES...............22-7
MOUNTÐREAR, ENGINE.............9-12,9-52
MOUNTSÐFRONT, ENGINE...........9-10,9-51
MUFFLER AND EXHAUST TAILPIPEÐXJ
VEHICLES...........................11-5
MUFFLER AND EXHAUST TAILPIPEÐ
YJ VEHICLES.........................11-6
MUFFLER AND TAILPIPE HEAT SHIELDS....13-17
MUFFLER/TAILPIPE HANGER BRACKET
.....13-16
MULTI-PORT FUEL INJECTION (MFI)Ð
COMPONENT DESCRIPTION/
SYSTEM OPERATION
..................14-17
MULTI-PORT FUEL INJECTION (MFI)Ð
COMPONENT REMOVAL/INSTALLATION
. . . 14-54
MULTI-PORT FUEL INJECTION (MFI)Ð
GENERAL DIAGNOSIS
.................14-32NAMEPLATES (ADHESIVE-BACKED),
EXTERIOR.........................23-158
NAMEPLATES, EXTERIOR................23-30
NEUTRAL, HYDRAULIC FLOW IN PARK.....21-86
NEUTRAL SWITCH, PARK...............14-58
NOISE DIAGNOSIS......................3-45
NOISE DIAGNOSIS, 2.5L STARTER MOTOR . . . 8A-13
NOISE DIAGNOSIS, RADIO................8F-2
NOISE, GEAR AND BEARING; FRONT
SUSPENSION AND AXLE................2-16
NOISE, GEAR AND BEARING; REAR
SUSPENSION AND AXLES................3-7
NOISE OR VIBRATION, TIRE..............22-4
NOISE/VIBRATION DIAGNOSIS, AXLE;
FRONT SUSPENSION AND AXLE..........2-16
NOISE/VIBRATION DIAGNOSIS, AXLE;
REAR SUSPENSION AND AXLES..........3-7
NO-LEAD FUEL TANK FILLER TUBE........14-12
NON-INTERMITTENT WINDSHIELD
WASHER, DIAGNOSING...............8K-12
NON-TILT STEERING COLUMN............19-50
NORMAL BRAKING MODE, ABS
OPERATION IN.......................5-43
NOTATION, METRIC SYSTEM..........INTRO.-8
NOTATIONÐSAE AND METRIC, THREAD . INTRO.-9
NOTATIONS, SPECIFICATION...........INTRO.-8
NOZZLE AND DUCT, DEFROSTER..........24-40
NOZZLE REPLACEMENT, WASHER.........8K-13
NOZZLE/TUBE, FUEL FILLER.............23-30
NP231 SERVICE DIAGNOSIS............21-274
NP231 TRANSFER CASE.........21-272,21-291
NP231 TRANSFER CASE, LEGEND FOR....21-292
NP231/NP242 TORQUE SPECIFICATIONS . . . 21-331
NP242 SERVICE DIAGNOSIS............21-295
NP242 TRANSFER CASE...............21-293
NP242 TRANSFER CASE, LEGEND FOR....21-319
NUMBER (VIN) DECODING, VEHICLE
IDENTIFICATION...................INTRO.-2
NUMBER (VIN) PLATE, VEHICLE
IDENTIFICATION...................INTRO.-1
NUT TIGHTENING, WHEEL............5-32,5-37
NUT, WHEEL LUG......................22-11
OFF DRAW (IOD) DIAGNOSIS, IGNITION.....8A-8
OIL CHANGE AND FILTER REPLACEMENT,
ENGINE.............................0-15
OIL COOLERS, TRANSMISSION............7-29
OIL, ENGINE...........................0-13
OIL FILTER, ENGINE.....................0-14
OIL FILTER REPLACEMENT.............21-100
OIL LEVEL, COMPRESSOR................24-6
OIL PAN ..........................9-32,9-72
OIL PRESSURE GAUGE..................8E-1
OIL PRESSURE GAUGE INOPERATIVE.......8E-3
OIL PRESSURE INDICATOR...............8E-1
OIL PRESSURE INDICATOR INOPERATIVE....8E-3
OIL PUMP........................9-33,9-73
OIL PUMP OVERHAUL...........21-122,21-206
OIL PUMP SEAL REPLACEMENT.........21-189
OIL PUMP WEAR LIMITS, AW-4.........21-325
OIL SEAL REPLACEMENT, INNER AXLE
SHAFT..............................2-33
OIL SEAL REPLACEMENT, TIMING CASE
COVER..........................9-26,9-67
OIL SEALS, REAR MAIN..............9-44,9-84
OIL SEALS, VALVE SPRINGS..........9-21,9-62
ON-BOARD DIAGNOSTIC SYSTEM,
USING.............................8A-19
ON-BOARD DIAGNOSTICS (OBD);
COOLING SYSTEM.....................7-4
ON-BOARD DIAGNOSTICS (OBD); FUEL
SYSTEM............................14-48
ON-BOARD DIAGNOSTICS (OBD);
IGNITION SYSTEMS..................8D-19
ONE GAUGE INOPERATIVE...............8E-22
ONE-WAY CLUTCH OVERHAUL, NO. 2.....21-234
ONE-WAY CLUTCH OVERHAUL, NO. 1.....21-229
OPEN CIRCUIT VOLTAGE, BATTERY.........8A-4
OPEN CIRCUIT VOLTAGE TEST, BATTERY....8A-3
OPEN LOOP/CLOSED LOOP MODES OF
OPERATION
.........................14-27
OPENING PANEL (GOP), GRILLE AND
GRILLE
.............................23-3
OPENING WEATHERSTRIP SEAL,
LIFTGATE
...........................23-70
OPENING WEATHERSTRIP SEALS,
DOOR WINDOW GLASS AND DOOR
......23-62OPERATING SOUND LEVELS...............5-3
OPERATING SPECIFICATIONS, PUMP.......19-3
OPERATION, ABS SYSTEM................5-39
OPERATION, A/C........................24-1
OPERATION, ACCELERATION SWITCH.......5-45
OPERATION AND APPLICATION CHARTS,
GEARTRAIN........................21-159
OPERATION AND WEAR COMPENSATION,
CALIPER............................5-24
OPERATION, ANTILOCK BRAKE
SYSTEM............................5-43
OPERATION; CHIME/BUZZER
WARNING SYSTEMS...................8U-1
OPERATION, CLUTCH.....................6-2
OPERATION, COMPONENT
IDENTIFICATION/SYSTEM...............8D-1
OPERATION, COMPONENTS.............21-157
OPERATION, ECU
.......................5-46
OPERATION, HCU PUMP AND PEDAL
TRAVEL SENSOR
......................5-44
OPERATION, HCU SOLENOID VALVE
........5-43
OPERATION, HEATER/DEFROSTER
.........24-37
OPERATION IN ANTILOCK BRAKING
MODE, ABS
..........................5-43
OPERATION IN NORMAL BRAKING MODE,
ABS
................................5-43
OPERATION, MULTI-PORT FUEL
INJECTION (MFI)ÐCOMPONENT
DESCRIPTION/SYSTEM
................14-17
OPERATION, OPEN LOOP/CLOSED LOOP
MODES OF
..........................14-27
OPERATION, PARKING BRAKE
.............5-56
OPERATION, POWER BRAKE BOOSTER
......5-22
OPERATION, POWER STEERING PUMPÐ
INITIAL
............................19-13
OPERATION; REAR SUSPENSION AND
AXLES
..............................3-44
OPERATION, SYSTEM
...................8P-9
OPERATION, WHEEL SPEED SENSOR
.......5-45
OPERATION/DIAGNOSIS
..................8U-1
OPERATIONAL CHECK (ROAD TEST)
........8H-7
OPERATIONAL CHECK WITH BATTERY
INDICATOR (BASE CLUSTER ONLY)
......8A-14
OPERATIONAL CHECK WITH VOLTMETER
. . . 8A-15
O-RING SEAL, FLOW CONTROL VALVE
FITTING
............................19-12
ORNAMENTATION, WHEEL
................22-6
OUTER SCUFF PLATESÐXJ VEHICLES
....23-118
OUTLET DOOR VACUUM MOTOR
REPLACEMENT, HEATER/DEFROSTER/
INSTRUMENT PANEL
..................24-30
OUTPUT, AIR CONDITIONING CLUTCH
RELAYÐPCM
.......................14-24
OUTPUT, AUTO SHUT DOWN (ASD)
RELAYÐPCM
.......................14-24
OUTPUT, DATA LINK CONNECTORÐPCM
. . . 14-24
OUTPUT, EMR LAMPÐPCM
..............14-24
OUTPUT, FUEL INJECTORSÐPCM
.........14-25
OUTPUT, FUEL PUMP RELAYÐPCM
.......14-25
OUTPUT, GENERATOR FIELDÐPCM
.......14-25
OUTPUT, GENERATOR LAMPÐPCM
.......14-25
OUTPUT, IDLE AIR CONTROL (IAC)
MOTORÐPCM
.......................14-25
OUTPUT, IGNITION COILÐPCM
...........14-26
OUTPUT, MALFUNCTION INDICATOR
LAMPÐPCM
........................14-26
OUTPUT, RADIATOR FAN RELAYÐPCM
.....14-26
OUTPUT, SCI TRANSMITÐPCM
...........14-26
OUTPUT SHAFT OVERHAUL, NO. 2 ONE-
WAY CLUTCH
......................21-234
OUTPUT, SHIFT INDICATORÐPCM
........14-26
OUTPUT, SPEED CONTROLÐPCM
.........14-27
OUTPUT, TACHOMETERÐPCM
...........14-27
OUTPUT, TORQUE CONVERTER CLUTCH
RELAYÐPCM
.......................14-27
OUTPUT VOLTAGE SPECIFICATIONS
.......8B-12
OVERDRIVE COMPONENTS, FOURTH
GEAR
.............................21-158
OVERDRIVE PLANETARY GEAR AND
CLUTCH OVERHAUL
.................21-209
OVERDRIVE SUPPORT OVERHAUL
.......21-216
JINDEX15
Description Group-Page Description Group-Page Description Group-Page