seat memory JEEP CHEROKEE 1995 Service Repair Manual

ELECTRICAL
GROUP INDEX
Group Group
AUDIO SYSTEMS........................ 8F
BATTERY/STARTER/GENERATOR SERVICE.... 8B
BATTERY/STARTING/CHARGING SYSTEMS
DIAGNOSTICS......................... 8A
CHIME/BUZZER WARNING SYSTEMS........ 8U
HORNS................................ 8G
IGNITION SYSTEMS...................... 8D
INSTRUMENT PANEL AND GAUGES......... 8E
LAMPS................................ 8L
OVERHEAD CONSOLE.................... 8C
POWER LOCKS.......................... 8P
POWER MIRRORS....................... 8TPOWER SEATS.......................... 8R
POWER WINDOWS....................... 8S
REAR WINDOW DEFOGGER............... 8N
RESTRAINT SYSTEMS................... 8M
TURN SIGNAL AND HAZARD WARNING
SYSTEMS............................. 8J
VEHICLE SPEED CONTROL SYSTEM......... 8H
WIPER AND WASHER SYSTEMS............ 8K
XJ WIRING DIAGRAMS-LEFT HAND DRIVE . . . 8W
XJ WIRING DIAGRAMS-RIGHT HAND DRIVE . 8W
YJ WIRING DIAGRAMS.................. 8W
BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS
CONTENTS
page page
BATTERY............................... 2
CHARGING SYSTEM..................... 17
IGNITION-OFF DRAW.................... 10SPECIFICATIONS........................ 23
STARTING SYSTEM...................... 11
USING ON-BOARD DIAGNOSTIC SYSTEM.... 22
GENERAL INFORMATION
The battery, starting, and charging systems operate
with one another; therefore, they must be tested as a
complete system. In order for the vehicle to start and
charge properly, all of the components involved in
these systems must perform within specifications.
Group 8A covers battery, starting (Fig. 1) and
charging (Fig. 2) system diagnostic procedures. These
procedures include the most basic conventional diag-
nostic methods, to On-Board Diagnostics (OBD) builtinto the Powertrain Control Module (PCM). Use of an
induction milliamp ammeter, volt/ohmmeter, battery
charger, carbon pile rheostat (load tester), and 12-
volt test lamp will be required.
All OBD-sensed systems are monitored by the
PCM. Each monitored circuit is assigned a Diagnos-
tic Trouble Code (DTC). The PCM will store a DTC in
electronic memory for any failure it detects. See Us-
ing On-Board Diagnostic System in this group for
more information.
JELECTRICAL 8A - 1

HEADLAMP HIGH BEAM INDICATOR LAMP
The high beam indicator lamp is controlled by the
headlamp dimmer (multi-function) switch. One side
of the indicator bulb is grounded at all times. The
other side of the bulb receives battery feed through
the contacts of the dimmer switch when the multi-
function switch stalk is actuated to turn the head-
lamp high beams on. Refer to Group 8L - Lamps for
more information.
LOW FUEL WARNING LAMP
A Light-Emitting Diode (LED) on the face of the
fuel gauge will light when the fuel level falls below
approximately 4 gallons. A low fuel warning module
attached to the rear of the fuel gauge controls when
the LED will light. When the module senses 66.5
ohms or more resistance from the fuel level sending
unit for 10 continuous seconds, the LED will light.
When the module senses 63.5 ohms or less resistance
from the fuel level sending unit for 20 continuous
seconds, the LED is turned off.
LOW OIL PRESSURE WARNING LAMP
The low oil pressure warning lamp lights with the
ignition switch in the ON position and the engine not
running. The lamp should be off when the engine is
running. Battery voltage is supplied to one side of
the indicator bulb when the ignition switch is turned
ON. The warning lamp side of the combination oil
pressure sending unit is connected to the other side
of the bulb. When normal engine oil pressure is ap-
plied to the sending unit, resistance on the warning
lamp side is high and the lamp goes off. When engine
oil pressure is too low, resistance on the warning
lamp side of the sending unit is low, which causes
the bulb to light.
LOW WASHER FLUID WARNING LAMP
The low washer fluid warning lamp indicates when
the fluid level in the washer reservoir is too low. The
washer fluid level sensor uses a float in the reservoir
to monitor fluid level. The action of the float opens or
closes the switch within the sensor that provides ig-
nition-switched battery voltage to the lamp bulb. Re-
fer to Group 8K - Wiper and Washer Systems for
more information.
MALFUNCTION INDICATOR LAMP
The CHECK ENGINE or Malfunction Indicator
Lamp (MIL) lights each time the ignition switch is
turned ON, and stays on for 3 seconds as a bulb test.
If the Powertrain Control Module (PCM) receives an
incorrect signal or no signal from certain fuel oremission system related circuits or components, the
lamp is turned on. This will indicate that the PCM
has recorded a Diagnostic Trouble Code (DTC) in
electronic memory for a circuit or component mal-
function. Refer to Group 14 - Fuel System for more
information.
SEAT BELT REMINDER LAMP
The seat belt reminder lamp lights for 4 to 8 sec-
onds after the ignition switch is turned to the ON po-
sition. A timer in the chime/buzzer module controls
ignition-switched battery feed to the lamp. Refer to
Group 8U - Chime/Buzzer Warning Systems for more
information.
TURN SIGNAL INDICATOR LAMPS
The left and right turn signal indicator lamps are
controlled by the turn signal and hazard warning
(multi-function) switches. One side of the bulb for
each lamp is grounded at all times. The other side of
the bulb receives battery feed through the contacts of
the multi-function switch when the turn signal lever
(multi-function switch stalk) or hazard warning but-
ton are actuated. Refer to Group 8J - Turn Signal
and Hazard Warning Systems for more information.
UPSHIFT INDICATOR LAMP
Vehicles equipped with manual transmissions have
an optional upshift indicator lamp. Ground feed for
the lamp is switched by the Powertrain Control Mod-
ule (PCM). The lamp lights to indicate when the
driver should shift to the next highest gear for best
fuel economy. The PCM will turn the lamp off after 3
to 5 seconds if the upshift is not performed. The lamp
will remain off until the vehicle stops accelerating
and is brought back to the range of lamp operation,
or until the transmission is shifted into another gear.
The indicator lamp is normally on when the igni-
tion switch is turned ON and is turned off when the
engine is started. The lamp will be turned on during
vehicle operation according to engine speed and load.
CLUSTER ILLUMINATION LAMPS
All cluster illumination lamps receive battery feed
from the instrument lamps fuse in the fuseblock
module through the panel dimmer rheostat of the
headlamp switch. When the park or headlamps are
on, the cluster illumination lamps light. Illumination
brightness can be adjusted by rotating the headlamp
switch knob (clockwise to dim, counterclockwise to
brighten).
8E - 4 INSTRUMENT PANEL AND GAUGESÐXJJ

voltage is supplied to one side of the indicator bulb. A
ground path for the bulb is provided by 3 switches.
The bulb will light when:
²the brake warning switch is closed (indicating un-
equal brake system hydraulic pressures possibly due
to brake fluid leakage)
²the ignition switch is in the START position (bulb
test)
²the parking brake switch is closed (parking brake
is applied).
Refer to Group 5 - Brakes for more information.
FOUR-WHEEL DRIVE INDICATOR LAMP
This lamp lights when the transfer case is engaged
in the 4H or 4L position. Voltage is supplied to one
side of the indicator bulb. A switch on the front axle
disconnect housing is connected to the other side of
the indicator bulb. When the switch is closed, a path
to ground is provided and the indicator bulb lights.
HEADLAMP HIGH BEAM INDICATOR LAMP
The high beam indicator lamp is controlled by the
headlamp dimmer switch. One side of the indicator
bulb is grounded at all times. The other side of the
bulb receives battery feed through the contacts of the
dimmer switch when the turn signal switch lever is
actuated to turn the headlamp high beams on. Refer
to Group 8L - Lamps for more information.
MALFUNCTION INDICATOR LAMP
The CHECK ENGINE or Malfunction Indicator
Lamp (MIL) lights each time the ignition switch is
turned ON, and stays on for 3 seconds as a bulb test.
If the Powertrain Control Module (PCM) receives an
incorrect signal or no signal from certain fuel or
emission system related circuits or components, the
lamp is turned on. This will indicate that the PCM
has recorded a Diagnostic Trouble Code (DTC) in
electronic memory for a circuit or component mal-
function. Refer to Group 14 - Fuel System for more
information.
SEAT BELT REMINDER LAMP
The seat belt reminder lamp lights for 4 to 8 sec-
onds after the ignition switch is turned to the ON po-sition. A timer in the chime/buzzer module controls
ignition-switched battery feed to the lamp. Refer to
Group 8U - Chime/Buzzer Warning Systems for more
information.
TURN SIGNAL INDICATOR LAMPS
The left and right turn signal indicator lamps are
controlled by the turn signal and hazard warning
switches. One side of the bulb for each lamp is
grounded at all times. The other side of the bulb re-
ceives battery feed through the contacts of the turn
signal switch, when the turn signal lever or hazard
warning button are actuated. Refer to Group 8J -
Turn Signal and Hazard Warning Systems for more
information.
UPSHIFT INDICATOR LAMP
Vehicles equipped with manual transmissions have
an optional upshift indicator lamp. Ground feed for
the lamp is switched by the Powertrain Control Mod-
ule (PCM). The lamp lights to indicate when the
driver should shift to the next highest gear for best
fuel economy. The PCM will turn the lamp off after 3
to 5 seconds if the upshift is not performed. The lamp
will remain off until the vehicle stops accelerating
and is brought back to the range of lamp operation,
or until the transmission is shifted into another gear.
The indicator lamp is normally on when the igni-
tion switch is turned ON and is turned off when the
engine is started. The lamp will be turned on during
vehicle operation according to engine speed and load.
CLUSTER ILLUMINATION LAMPS
All cluster illumination lamps receive battery feed
from the instrument lamps fuse in the fuseblock
module through the panel dimmer switch. When the
park or headlamps are on, the cluster illumination
lamps light. Illumination brightness can be adjusted
by rotating the panel dimmer thumb-wheel, which is
next to the headlamp switch.
8E - 26 INSTRUMENT PANEL AND GAUGESÐYJJ

PUMP MOTOR SPEED SENSOR;
ANTI-LOCK BRAKES (YJ)............8W-32-1
PUMP, OIL.......................9-39,9-81
PUMP OPERATING SPECIFICATIONS......19-3
PUMP OVERHAUL, OIL.........21-131,21-216
PUMP, POWER STEERING....19-11,19-74,19-78
PUMP RELAY, FUEL; FUEL SYSTEM......14-61
PUMP RELAY, FUEL; FUEL/IGNITION
(XJ).............................8W-30-2
PUMP RELAY, FUEL; FUEL/IGNITION
(YJ).............................8W-30-2
PUMP RELAY, FUEL; FUEL/IGNITION
(XJ-RHD).........................8W-30-2
PUMP RELAY TESTING, FUEL...........14-47
PUMP RELAYÐPCM OUTPUT, FUEL......14-27
PUMP REMOVE/INSTALL, WASHER......8K-24
PUMP REPLACEMENT.................19-12
PUMP SEAL REPLACEMENT, OIL.......21-199
PUMP TESTS, WATER..................7-13
PUMP WEAR LIMITS, AW-4 OIL........21-338
PUMPÐINITIAL OPERATION, POWER
STEERING..........................19-15
PUMPSÐGENERAL INFORMATION,
WATER .............................7-13
PUMPSÐREMOVAL/INSTALLATION,
WATER .............................7-14
PUSH RODS, ROCKER ARMS........9-23,9-65
QUARTER AND WHEELHOUSE TRIM
PANELSÐXJ........................23-87
QUARTER PLASTIC INSERTÐXJ, REAR
QUARTER WINDOW GLASS/REAR.......23-73
QUARTER TRIM PANEL EXTENSIONÐXJ . . 23-87
QUARTER VENT WINDOW GLASSÐXJ,
REAR..............................23-73
QUARTER WINDOW APPLIQUEÐXJ......23-25
QUARTER WINDOW GLASSÐYJ, HARD
TOP ..............................23-149
QUARTER WINDOW GLASS/REAR
QUARTER PLASTIC INSERTÐXJ, REAR . . . 23-73
QUICK-CONNECT FITTINGS........14-10,14-64
RACK PISTON AND WORM SHAFT
REPLACEMENT......................19-32
RACKÐXJ, LUGGAGE.................23-28
RADIATOR FAN RELAY AND MOTOR; AIR
CONDITIONING/HEATER (XJ).........8W-42-2
RADIATOR FAN RELAY AND MOTOR; AIR
CONDITIONING/HEATER (XJ-RHD).....8W-42-2
RADIATOR FAN RELAYÐPCM OUTPUT . . . 14-28
RADIATOR GRILLE APPLIQUEÐYJ......23-104
RADIATOR PRESSURE CAP..............7-25
RADIATOR SUPPORT CROSSMEMBERÐ
XJ .................................23-6
RADIATORS..........................7-26
RADIO; AUDIO SYSTEMS...............8F-2
RADIO; RADIO (XJ).................8W-47-1
RADIO; RADIO (XJ-RHD)............8W-47-1
RADIO CONNECTIONS..................8F-4
RADIO DIAGNOSIS....................8F-3
RADIO FREQUENCY INTERFERENCE.......8F-5
RADIO ILLUMINATION; RADIO (XJ)....8W-47-1
RADIO ILLUMINATION; RADIO (XJ-RHD) . 8W-47-1
RADIO ILLUMINATION; RADIO (YJ)....8W-47-1
RADIO ILLUMINATION RELAY........8F-1,8F-4
RADIO ILLUMINATION RELAY
CONNECTIONS........................8F-4
RADIO MEMORY; RADIO (XJ).........8W-47-1
RADIO MEMORY; RADIO (XJ-RHD)....8W-47-1
RADIO MEMORY; RADIO (YJ).........8W-47-1
RADIO NOISE SUPPRESSION............8F-2
RADIO REMOVE/INSTALL - XJ...........8F-6
RADIO REMOVE/INSTALL - YJ...........8F-9
RADIOS.............................8F-1
RAIL ASSEMBLY, FUEL................14-62
RAIL, FUEL.........................14-33
RAIL MOLDINGÐXJ, DRIP.............23-25
RAMP ANGLE, GROUND CLEARANCE......0-11
RANGE LAMP, TRANSMISSION;
INTERIOR LIGHTING (YJ)............8W-44-1
RANGES AND SHIFT LEVER POSITIONS,
TRANSMISSION.....................21-166
RANGES, OPERATING................21-307
RATE, CHARGE.......................8A-9
RATINGS, BATTERY....................8A-3
RATINGS, BATTERY CLASSIFICATIONS
....8A-23
RATINGS, GENERATOR
................8A-23
RATIOS, GEAR
........................21-2
RATIOS, TRANSMISSION GEAR
.........21-34
READING AND COURTESY LAMPS
........8C-1READING LAMPS; INTERIOR LIGHTING
(XJ).............................8W-44-2
READING LAMPS; INTERIOR LIGHTING
(XJ-RHD).........................8W-44-1
READING/COURTESY LAMP BULB
REMOVE/INSTALL.....................8C-8
REAR AXLE ALIGNMENT................3-10
REAR AXLES, FRONT..................0-24
REAR BENCH SEATÐYJ..............23-153
REAR BUMPER..................13-16,13-8
REAR CABLE REPLACEMENT (XJ),
PARKING BRAKE......................5-67
REAR CABLE REPLACEMENT (YJ),
PARKING BRAKE......................5-68
REAR CARPET/MATÐXJ..............23-100
REAR CLUTCH OVERHAUL............21-138
REAR DOOR STATIONARY WINDOW
GLASSÐXJ.........................23-46
REAR DOOR WINDOW GLASS
REGULATORÐXJ....................23-44
REAR DOOR WINDOW GLASSÐXJ......23-45
REAR LICENSE PLATE LAMPS, TAIL
LAMPS; REAR LIGHTING (XJ)........8W-51-1
REAR LICENSE PLATE LAMPS, TAIL
LAMPS; REAR LIGHTING (XJ-RHD)....8W-51-1
REAR MAIN OIL SEALS.............9-49,9-89
REAR QUARTER VENT WINDOW
GLASSÐXJ.........................23-73
REAR QUARTER WINDOW GLASS/REAR
QUARTER PLASTIC INSERTÐXJ.........23-73
REAR SEAT CUSHION COVERÐXJ........23-82
REAR SEAT CUSHIONÐXJ.............23-82
REAR SEATBACK COVERÐXJ...........23-84
REAR SEATBACK LATCH STRIKER AND
BUMPERÐXJ.......................23-84
REAR SEATBACKÐXJ.................23-83
REAR SHOULDER BELTSÐYJ..........23-154
REAR SHOULDER/LAP BELT/BUCKLEÐ
XJ ................................23-91
REAR SUSPENSION COMPONENTS, XJ....3-51
REAR SUSPENSION COMPONENTS, YJ....3-51
REAR TOW HOOK.....................13-9
REAR WHEEL SENSOR INSTALLATION
AND ADJUSTMENT....................5-38
REAR WHEEL SENSOR REMOVAL........5-38
REAR WHEELHOUSE FLARES AND
LINERSÐXJ........................23-19
REAR WINDOW GLASS GRID.......8N-1,8N-2
REAR WINDOW GLASS GRID REPAIRS....8N-3
REAR WINDOW, HEATED; HEATED REAR
WINDOW (XJ).....................8W-48-1
REAR WINDOW, HEATED; HEATED REAR
WINDOW (XJ-RHD).................8W-48-1
REAR WINDOW, HEATED; HEATED REAR
WINDOW (YJ).....................8W-48-1
REAR WIPER SYSTEM; WIPERS (XJ) . . . 8W-53-1
REAR WIPER SYSTEM; WIPERS
(XJ-RHD).........................8W-53-1
REAR WIPER SYSTEM; WIPERS (YJ) . . . 8W-53-1
REARÐXJ,YJ VEHICLES................16-8
REARVIEW MIRROR RETAINING
BRACKETÐYJ......................23-144
REARVIEW MIRROR SUPPORT BRACKET
REPLACEMENTÐXJ, INTERIOR.........23-68
REARVIEW MIRRORÐXJ, INTERIOR.....23-66
REARVIEW MIRRORÐYJ.............23-144
RECEIVEÐPCM INPUT, SCI............14-24
RECEIVER, KEYLESS ENTRY.............8C-1
RECEIVER TRAY LAMPÐXJ, I/P ASH.....23-80
RECEIVER-DRIER REPLACEMENT........24-35
RECEIVERÐXJ, KEYLESS ENTRY........23-93
RECIRCULATING BALL POWER
STEERING GEAR.....................19-21
RECIRCULATING DOOR VACUUM MOTOR
REPLACEMENT, A/C...................24-27
RECIRCULATING-BALL POWER
STEERING GEARS....................19-74
RECIRCULATION (EGR) SYSTEM,
EXHAUST GAS........................25-1
RECOMMENDATION, LUBRICATION AND
REPLACEMENT PARTS..................0-2
RECOMMENDATIONS, BRAKE BLEEDING . . . 5-10
RECOMMENDATIONS, HOISTING.........0-10
RECOMMENDATIONS, TOWING
...........0-10
RECOMMENDED BRAKE FLUID
...........5-10
RECOVERING REFRIGERANT SYSTEM
....24-11
REFILLING COOLING SYSTEM
...........7-21
REFINISHING, BRAKE DRUM
............5-58REFINISHING, DISC BRAKE ROTOR.......5-53
REFRIGERANT........................24-7
REFRIGERANT EQUIPMENT..............24-7
REFRIGERANT HOSES/TUBES
PRECAUTIONS.......................24-10
REFRIGERANT, LEAK TESTING..........24-11
REFRIGERANT OIL...................24-12
REFRIGERANT SERVICE AND
PERFORMANCE TEST.................24-11
REFRIGERANT SYSTEM, CHARGING......24-11
REFRIGERANT SYSTEM, EVACUATING....24-11
REFRIGERANT SYSTEM, RECOVERING....24-11
REGULATOR, FUEL PRESSURE.....14-33,14-61
REGULATOR HANDLEÐYJ, FULL-METAL
DOOR WINDOW GLASS..............23-136
REGULATORÐXJ, FRONT DOOR
WINDOW GLASS.....................23-42
REGULATORÐXJ, REAR DOOR WINDOW
GLASS.............................23-44
REGULATORÐYJ, FULL-METAL DOOR
WINDOW GLASS....................23-138
RELAY, ABS POWER; ANTI-LOCK
BRAKES (XJ)......................8W-32-1
RELAY, ABS POWER; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-1
RELAY, ABS POWER; ANTI-LOCK
BRAKES (YJ)......................8W-32-1
RELAY, ABS PUMP MOTOR; ANTI-LOCK
BRAKES (XJ)......................8W-32-1
RELAY, ABS PUMP MOTOR; ANTI-LOCK
BRAKES (XJ-RHD)...................8W-32-1
RELAY, ABS PUMP MOTOR; ANTI-LOCK
BRAKES (YJ)......................8W-32-1
RELAY, A/C COMPRESSOR CLUTCH . 24-15,24-16
RELAY, AIR CONDITIONING (A/C)
CLUTCH............................14-58
RELAY AND MOTOR, RADIATOR FAN;
AIR CONDITIONING/HEATER (XJ)......8W-42-2
RELAY AND MOTOR, RADIATOR FAN;
AIR CONDITIONING/HEATER (XJ-RHD) . . 8W-42-2
RELAY, AUTOMATIC SHUT DOWN (ASD);
FUEL/IGNITION (XJ)................8W-30-1
RELAY, AUTOMATIC SHUT DOWN (ASD);
FUEL/IGNITION (YJ)................8W-30-1
RELAY, AUTOMATIC SHUT DOWN (ASD);
FUEL/IGNITION (XJ-RHD)............8W-30-1
RELAY, AUTOMATIC SHUTDOWN (ASD);
FUEL SYSTEM.......................14-59
RELAY, AUTOMATIC SHUTDOWN (ASD);
IGNITION SYSTEMS..............8D-17,8D-1
RELAY CONNECTIONS, RADIO
ILLUMINATION.......................8F-4
RELAY CONNECTIONS, STARTER........8A-15
RELAY, DEFOGGER....................8N-3
RELAY, FUEL PUMP; FUEL SYSTEM......14-61
RELAY, FUEL PUMP; FUEL/IGNITION
(XJ).............................8W-30-2
RELAY, FUEL PUMP; FUEL/IGNITION
(YJ).............................8W-30-2
RELAY, FUEL PUMP; FUEL/IGNITION
(XJ-RHD).........................8W-30-2
RELAY, HEADLAMP; FRONT LIGHTING
(XJ-RHD).........................8W-50-1
RELAY, HORN........................8G-1
RELAY, LEFT TURN; TRAILER TOW (XJ) . 8W-54-1
RELAY, LEFT TURN; TRAILER TOW
(XJ-RHD).........................8W-54-1
RELAY, LOCK; POWER DOOR LOCKS
(XJ).............................8W-61-1
RELAY, LOCK; POWER DOOR LOCKS
(XJ-RHD).........................8W-61-1
RELAY, RADIO ILLUMINATION........8F-1,8F-4
RELAY REMOVE/INSTALL, POWER
LOCK/UNLOCK.......................8P-12
RELAY REMOVE/INSTALL, STARTER.......8B-6
RELAY, RIGHT TURN; TRAILER TOW
(XJ).............................8W-54-1
RELAY, RIGHT TURN; TRAILER TOW
(XJ-RHD).........................8W-54-1
RELAY, STARTER AND STARTER..........8B-4
RELAY, STOP LAMP; TRAILER TOW (XJ)
. 8W-54-1
RELAY, STOP LAMP; TRAILER TOW
(XJ-RHD)
.........................8W-54-1
RELAY TEST, AUTOMATIC SHUTDOWN
(ASD)
..............................8D-6
RELAY TEST, STARTER MOTOR
.........14-51
RELAY TEST, TORQUE CONVERTER
CLUTCH
............................14-48
22 INDEXJ
Description Group-Page Description Group-Page Description Group-Page

INTERIOR LIGHTING
INDEX
page page
Accessory Lamp and Heater Control Panel Lamp . . 1
Combination Buzzer........................ 1
Courtesy Lamps and Dome Lamps............. 1
Diagram Index............................ 2General Information........................ 1
Transmission Range Lamp................... 1
Underhood Lamp.......................... 1
GENERAL INFORMATION
Circuit M1 supplies power to the underhood lamp,
dome lamp, right courtesy lamp and left courtesy
lamp. Fuse 12 in the Power Distribution Center
(PDC) protects circuit M1. Circuit A4 from fuse 8 in
the PDC supplies voltage to fuse 12 and circuit M1.
Fuse 12 is referred to as the Ignition Off Draw (IOD)
fuse.
COURTESY LAMPS AND DOME LAMPS
Circuit M1 supplies battery voltage to the dome
lamps and the right and left courtesy lamps. Circuit
M2 provides ground for the lamps through either the
case grounded door jamb switches or through the
dimmer switch to circuit Z1.
In the ON position, the dimmer switch connects
circuit M2 to ground on circuit Z1. When a door
opens, the case grounded door jamb switch closes and
provides ground for the lamps on circuit M2.
HELPFUL INFORMATION
²Circuit M1 also supplies voltage for radio memory,
underhood lamp and the ABS data link connector.
UNDERHOOD LAMP
Circuit M1 supplies battery voltage for the under-
hood lamp. A mercury switch in series after the lamp
connects the lamp to ground on circuit Z1. When the
hood is raised, mercury inside the switch moves to a
position where it connects circuit M1 to circuit Z1, il-
luminating the lamp. The underhood lamp is wired
in parallel with other components on circuit M1.
ACCESSORY LAMP AND HEATER CONTROL PANEL
LAMP
Circuit E1 from the dimmer switch supplies bat-
tery voltage to fuse 10 in the fuse block when the
dimmer switch is in the LOW or ON position. Fuse
10 protects circuit E2 which supplies power to the
heater control panel lamp and the accessory lamp.
Circuit Z1 provides ground for each lamp.
TRANSMISSION RANGE LAMP
Circuit E1 from the dimmer switch supplies bat-
tery voltage to fuse 10 in the fuse block when thedimmer switch is in the LOW or ON positions. Fuse
10 protects circuit E2 which supplies power to the
transmission range lamp. The lamp is case grounded.
COMBINATION BUZZER
The combination buzzer module sounds an audible
warning tone. The tone sounds for seat belt warning
and when the key is in the ignition switch while the
drivers door is open. The tone also sounds when the
ignition switch is in the ON position while the driv-
ers side seat belt is not buckled. Refer to Group 8U
for buzzer operation.
Fuses 3 and 9 in the fuse block protect the combi-
nation buzzer. Fuse 3 powers circuit F32 which con-
nects to the buzzer. Circuit A6 from fuse 3 in the
Power Distribution Center (PDC) supplies power to
the fuse block for circuit F32.
Circuit G5 from fuse 9 also provides voltage to the
combination buzzer when the ignition switch is in
the START or RUN position. The ignition switch con-
nects circuit A1 from fuse 4 in the PDC to circuit
A21. Circuit A21 connects to the fuse block.
When the key-in switch closes, it connects circuit
G26 to circuit G16. Circuit G16 connects to the driv-
ers side door jamb switch. When the drivers side door
is open and the key-in switch is closed, the case
grounded door jamb switch closes and supplies
ground for the buzzer. Circuit G26 from the combina-
tion buzzer connects to the key-in switch.
Circuit G13 form the buzzer powers the seat belt
warning lamp in the instrument cluster. Circuit Z1
at the instrument cluster provides ground for the
lamp.
Circuit G10 from the buzzer connects to the seat
belt switch. When the seat belt is unlatched, the seat
belt switch closes providing ground on circuit Z1.
Circuit Z1 also grounds the combination buzzer
module.
HELPFUL INFORMATION
²Circuit F32 also powers the stop lamp switch.
²Circuit G5 also provides power for the instrument
cluster gauges and warning lamps, heated rear win-
dow relay and A/C compressor clutch relay. On Cana-
J8W-44 INTERIOR LIGHTINGÐYJ VEHICLES 8W - 44 - 1