fuse CHRYSLER VOYAGER 1996 Owner's Manual

HORNS SOUND CONTINUOUSLY
CAUTION: Continuous sounding of horns may
cause relay to fail.
The horn switch (membrane) sometimes can be the
cause without the switch being depressing.
(1) Remove the horn relay from the junction block.
(2) Using a continuity tester, test continuity from
the X3 cavity of the horn relay to ground. Refer to
Group 8W, Wiring Diagrams for circuit information.
(a) If continuity is detected, proceed to step Step
3.
(b) If NO continuity, replace the horn relay.
(3) Remove the airbag/horn pad from the steering
wheel and disengage horn connector.
(4) Install horn relay into junction block.
(a) If horn does not sound, replace airbag cover/
horn pad.
(b) If horn sounds, repair grounded X3 circuit
from junction block to clockspring in steering in
steering column. Refer to Group 8W, Wiring Dia-
grams.
HORN SYSTEM
Refer to Horn System Test below. If the horn does
not sound, check horn fuse located in the Power Dis-
tribution Center. If the fuse is blown, replace with
the correct fuse. If the horn fail to sound and the
new fuse blows when depressing the horn switch, a
short circuit in the horn or the horn wiring between
the fuse terminal and the horn is responsible, or a
defective horn switch allowed the horn to burn out is
responsible.
If the fuse is OK, test horn relay refer to Horn
Relay Test.
If the relay is OK, test horn. Refer to Horn System
Test.
CAUTION: Continuous sounding of horn may
cause horn relay to fail.
Should the horn sound continuously:
²Unplug the horn relay from Power Distribution
Center.
²Refer to Horn Relay Test.
Refer to Group 8W, Wiring Diagrams for circuit
and wiring information.
HORN SYSTEM TEST
CONDITION POSSIBLE CAUSE CORRECTION
Horn sounds continuously.
NOTE: Immediately unplug horn
relay in the Power Distribution
Center (PDC)(1) Faulty horn relay.
(2) Horn control circuit to relay
shorted to ground.
(3) Pinched horn switch wire under
Driver Airbag Module.
(4) Defective horn switch(1) Refer to horn relay test.
(2) Check terminal 85 in Junction
Block for continuity to ground. If
continuity to ground indicates:
(a) Steering Wheel horn switch/lead
shorted to ground.
(b) Wiring harness shorted to
ground. Find the short and repair as
necessary.
(3) Replace Driver Airbag Module.
(4) Replace Driver Airbag Module.
Horn sound intermittently as the
steering wheel is turned.(1) Horn relay control circuit X3 is
shorted to ground inside steering
column or wheel.
(2) Pinched horn switch wire under
Driver Airbag Module
(3) Defective horn switch(1) Remove Driver Airbag Module
and/or wheel. Check for rubbing or
loose wire/connector, repair as
necessary.
(2) Replace Driver Airbag Module.
(3) Replace Driver Airbag Module.
Horn does not sound (1) Check fuse 6 in PDC
(2) No Voltage at horn relay
terminals 30 & 86, and fuse is OK.
(3) Open circuit from terminal 85 of
the horn relay to horn switch, X3
circuit.
(4) Defective or damaged horn.
(5) Defective horn switch(1) Replace fuse if blown repair as
necessary.
(2) No voltage, repair the A6 circuit
as necessary.
(3) Repair circuit as necessary.
(4) Voltage at horn when horn switch
is pressed, replace horn.
(5) Replace Driver Airbag Module.
NSHORNS 8G - 3
DIAGNOSIS AND TESTING (Continued)

CONDITION POSSIBLE CAUSE CORRECTION
Fuse blows when horn sounds (1) Short circuit in horn or horn
wiring(1) Remove horn relay, check for
shorted horn or horn wiring.
Disconnect horn wire harness to
isolate short and repair as
necessary.
Fuse blows without blowing horn (1) Short circuit (1) Remove relay, install new fuse, if
fuse does not blow replace horn
relay. If fuse blows with relay
removed, check for short to ground
with ohmmeter on circuit between
terminals 30 & 86 and the fuse
terminal. Repair as necessary.
NOTE: For wiring repairs refer to
Group 8W, Wire Diagrams.
REMOVAL AND INSTALLATION
HORN SWITCH
The horn switch is molded into the airbag cover.
The horn switch cannot be serviced separately. Refer
to Group 8M, Restraint System for Driver Airbag
Module Removal and Installation procedures.
HORNS
REMOVAL
(1) Hoist and support the front of the vehicle on
safety stands.
(2) From behind the front fascia and forward of
the left front wheel, disconnect the wire connectors
from horn.
(3) Remove the mount bracket attaching nut from
the bottom of radiator closure panel. Do not remove
the horn from mounting bracket (Fig. 4).
(4) Separate the horn from vehicle.
INSTALLATION
For installation reverse the above procedures.
Fig. 4 Horn Removal/Installation
8G - 4 HORNSNS
DIAGNOSIS AND TESTING (Continued)

COMBINATION FLASHER WITH / WITHOUT
DAYTIME RUNNING LAMPS MODULEÐCIRCUIT
DIAGNOSTICS
The battery input (Pin 1), is brought into the Junction
Block through the Electrical Distribution Wiring (EDW)
harness (Fig. 4). It originates under the hood in thePower Distribution Center (PDC) through a 20 ampere
fuse at position 10 (9th position from the upper end) and
labeled HAZARD. This circuit (L09) is the only power
feed to the combination-flasher/DRL.
The ignition input of Pin 6 (refer to Junction Block
Terminal Call-Out and Junction Block Terminal Call-Out
with DRL tables) only senses that the ignition circuit is
ON and does not supply current to the module in a way
that would power the system. This RUN/START circuit is
brought into the junction block to a 10 ampere fuse
labeled TS BU LMP at the bottom right side. The circuit
designation out of the fuse is A22D. This circuit feeds the
combo-flasher and the following systems with Ignition
voltage if the vehicle is so equipped:
²Back-Up Lamps
²Electrochromic Inside Rear view Mirror
²A/C Control Head
²Mini-Trip Computer
²ABS Module
²Front Blower Relay Coil
²Rear Blower Relay Coil
²AWD Solenoids
²Rear Window Defogger (EBL) Relay Coil
The ignition input to the combo-flasher will draw
typically 5 mA of current while active.
For diagnostic test procedures, refer to Combina-
tion Flasher Diagnosis tables.
Fig. 4 Electronic Combination Flasher Circuit
Fig. 3 Turn Signal±Multi-Function Switch Pin
numbers
TURN SIGNAL MULTI-FUNCTION SWITCH
TEST
SWITCH POSITIONCONTINUITY
BETWEEN
LEFT 4 AND 8
RIGHT 3 AND 8
HAZARD 1 AND 8
LO BEAM 9 AND 10
HI BEAM 9 AND 121
NSTURN SIGNAL AND FLASHERS 8J - 3
DIAGNOSIS AND TESTING (Continued)

COMBINATION FLASHER DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
SYSTEM WILL NOT FLASH
HAZARD WARNING LAMPS1. FAULTY (20) AMP FUSE N
POWER DISTRIBUTION CENTER
(PDC).
2. FAULTY WIRING CONNECTION
BETWEEN BOTTOM SIDE OF PDC
AND JUNCTION BLOCK.
3. FAULTY GROUND FEED TO
MULTI-FUNCTION SWITCH.
4. FAULTY HAZARD WARNING
SWITCH CONTACT.
5. COMBINATION FLASHER NOT
PLUGGED INTO JUNCTION
BLOCK.
6. FAULTY COMBINATION
FLASHER.
7. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE FAULTY FUSE IN
PDC.
2. REPAIR FAULTY WIRING
CONNECTION FROM PDC TO
JUNCTION BLOCK.
3. REPAIR OR REPLACE FAULTY
GROUND WIRE FEED TO
MULTI-FUNCTION SWITCH.
4. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
5. PLUG COMBINATION FLASHER
INTO JUNCTION BLOCK.
6. REPLACE FAULTY
COMBINATION FLASHER.
7. REPLACE JUNCTION BLOCK.
SYSTEM WILL FLASH HAZARD
WARNING LAMPS BUT WILL
NOT FLASH RIGHT OR LEFT
TURN SIGNAL LAMPS1. FAULTY (10) AMP FUSE IN THE
JUNCTION BLOCK.
2. FAULTY COMBINATION
FLASHER.
3. FAULTY MULTI-FUNCTION
SWITCH CONTACTS.
4. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE FAULTY FUSE IN
JUNCTION BLOCK.
2. REPLACE COMBINATION
FLASHER.
3. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
4. REPLACE JUNCTION BLOCK.
SYSTEM WILL FLASH HAZARD
WARNING LAMPS AND RIGHT
TURN SIGNAL LAMPS, BUT WILL
NOT FLASH LEFT TURN SIGNAL
LAMPS1. FAULTY LEFT TURN SIGNAL
WIRING CONNECTION BETWEEN
JUNCTION BLOCK AND MULTI-
FUNCTION SWITCH.
2. FAULTY COMBINATION
FLASHER.
3. FAULTY MULTI-FUNCTION
SWITCH CONTACTS.
4. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPAIR OR REPLACE FAULTY
WIRING CONNECTION BETWEEN
JUNCTION BLOCK AND MULTI-
FUNCTION SWITCH.
2. REPLACE COMBINATION
FLASHER.
3. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
4. REPLACE JUNCTION BLOCK.
RIGHT TURN SIGNAL
OPERATES PROPERLY BUT
LEFT TURN SIGNAL FLASHES
FAST1. FAULTY LEFT FRONT OR LEFT
REAR TURN SIGNAL LAMP.
2. FAULTY WIRING CONNECTION
FROM JUNCTION BLOCK TO LEFT
FRONT OR LEFT REAR TURN
SIGNAL LAMP.
3. FAULTY GROUND WIRING
CONNECTION FROM LEFT
FRONT OR LEFT REAR TURN
SIGNAL LAMP.
4. FAULTY MULTI-FUNCTION
SWITCH CONTACTS.
5. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE LEFT FRONT OR
LEFT REAR TURN SIGNAL LAMP.
2. REPAIR OR REPLACE WIRING
CONNECTION FROM JUNCTION
BLOCK TO LEFT FRONT OR LEFT
REAR TURN SIGNAL LAMP.
3. REPAIR OR REPLACE FAULTY
GROUND WIRING CONNECTION
TO LEFT FRONT OR LEFT REAR
TURN SIGNAL LAMP.
4. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
5. REPLACE JUNCTION BLOCK.
8J - 6 TURN SIGNAL AND FLASHERSNS
DIAGNOSIS AND TESTING (Continued)

COMBINATION FLASHER DIAGNOSIS WITH DRL
CONDITION POSSIBLE CAUSES CORRECTION
SYSTEM WILL NOT FLASH
HAZARD WARNING LAMPS1. FAULTY (20) AMP FUSE N
POWER DISTRIBUTION CENTER
(PDC).
2. FAULTY WIRING CONNECTION
BETWEEN BOTTOM SIDE OF PDC
AND JUNCTION BLOCK.
3. FAULTY GROUND FEED TO
MULTI-FUNCTION SWITCH.
4. FAULTY HAZARD WARNING
SWITCH CONTACT.
5. COMBINATION FLASHER/DRL
MODULE NOT PLUGGED INTO
JUNCTION BLOCK.
6. FAULTY COMBINATION
FLASHER/DRL MODULE.
7. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE FAULTY FUSE IN
PDC.
2. REPAIR FAULTY WIRING
CONNECTION FROM PDC TO
JUNCTION BLOCK.
3. REPAIR OR REPLACE FAULTY
GROUND WIRE FEED TO
MULTI-FUNCTION SWITCH.
4. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
5. PLUG COMBINATION FLASHER/
DRL MODULE INTO JUNCTION
BLOCK.
6. REPLACE FAULTY
COMBINATION FLASHER/DRL
MODULE.
7. REPLACE JUNCTION BLOCK.
SYSTEM WILL FLASH HAZARD
WARNING LAMPS BUT WILL
NOT FLASH RIGHT OR LEFT
TURN SIGNAL LAMPS1. FAULTY (10) AMP FUSE IN THE
JUNCTION BLOCK.
2. FAULTY COMBINATION
FLASHER/DRL MODULE.
3. FAULTY MULTI-FUNCTION
SWITCH CONTACTS.
4. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE FAULTY FUSE IN
JUNCTION BLOCK.
2. REPLACE COMBINATION
FLASHER/DRL MODULE.
3. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
4. REPLACE JUNCTION BLOCK.
RIGHT TURN SIGNAL
OPERATES PROPERLY BUT
LEFT TURN SIGNAL FLASHES
FAST
(Hazard mode can be used for a
system check)1. FAULTY LEFT FRONT OR LEFT
REAR TURN SIGNAL LAMP.
2. FAULTY WIRING CONNECTION
FROM JUNCTION BLOCK TO LEFT
FRONT OR LEFT REAR TURN
SIGNAL LAMP.
3. FAULTY GROUND WIRING
CONNECTION FROM LEFT
FRONT OR LEFT REAR TURN
SIGNAL LAMP.
4. FAULTY MULTI-FUNCTION
SWITCH CONTACTS.
5. FAULTY TERMINALS IN
JUNCTION BLOCK.1. REPLACE LEFT FRONT OR
LEFT REAR TURN SIGNAL LAMP.
2. REPAIR OR REPLACE WIRING
CONNECTION FROM JUNCTION
BLOCK TO LEFT FRONT OR LEFT
REAR TURN SIGNAL LAMP.
3. REPAIR OR REPLACE FAULTY
GROUND WIRING CONNECTION
TO LEFT FRONT OR LEFT REAR
TURN SIGNAL LAMP.
4. REPLACE FAULTY MULTI-
FUNCTION SWITCH.
5. REPLACE JUNCTION BLOCK.
8J - 8 TURN SIGNAL AND FLASHERSNS
DIAGNOSIS AND TESTING (Continued)

WINDSHIELD WIPERS AND WASHERS
CONTENTS
page page
REAR WIPER AND WASHER................ 9WINDSHIELD WIPERS AND WASHER......... 1
WINDSHIELD WIPERS AND WASHER
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 1
FAILED PARK SWITCH.................... 2
MULTI-FUNCTION SWITCH................. 4
REMOVAL AND INSTALLATION
MULTI-FUNCTION SWITCH................. 4
WINDSHIELD WASHER BOTTLE............. 4
WINDSHIELD WIPER BLADE ELEMENT....... 6WINDSHIELD WIPER BLADE................ 5
WINDSHIELD WIPER MOTOR............... 6
WIPER ARM............................. 7
WIPER LINKAGE......................... 7
WIPER UNIT............................ 7
CLEANING AND INSPECTION
WIPER BLADES.......................... 8
ADJUSTMENTS
WIPER ARM ALIGNMENT.................. 8
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
SAFETY PRECAUTIONS. DISCONNECT THE NEGA-
TIVE CABLE FROM THE BATTERY BEFORE SER-
VICING COMPONENTS INVOLVING THE AIRBAG
SYSTEM. ACCIDENTAL DEPLOYMENT OF AIRBAG
AND PERSONAL INJURY CAN RESULT.
The windshield wipers can be operated with the
windshield wiper switch when the ignition switch is
in the RUN or ACCESSORY positions. The wind-
shield wiper system is protected by a 40 amp fuse (9)
located in the Power Distribution Center (PDC) in
the engine compartment. The windshield washer cir-
cuit is protected by a 6 amp fuse (9) located in the
Junction Block. The wiper motor has permanent
magnetic fields. The speeds are determined by cur-
rent flow to the appropriate set of brushes inside the
motor. The current flow is controlled by the multi-
function switch stalk mounted wiper switch, high
speed/low speed relays located in the PDC. The speed
sensitive intermittent wiper is controlled by the BodyControl Module (BCM). The intermittent mode, with
the vehicle traveling greater than 10.4 mph, has a
range of 0.5 to 18 seconds. With the vehicle traveling
less than 10.4 mph, and the time delay is not
adjusted, time delay doubles to a range of 1 to 36
seconds. The wiper arms will park at the base of the
windshield just above the cowl cover after the wiper
switch is turned OFF.
The windshield wiper motor and linkage is located
in an integral wiper unit at the rear of the engine
compartment. The wiper unit must be removed to
gain access to the wiper motor.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
The windshield wiper system operates in several
modes:
²Low and high speed normal wipe
²Speed sensitive intermittent wipe
²Wipe after wash
²Pulse wipe
²Park (switch OFF)
The windshield wiper circuits are continuously
monitored and controlled by the Body Control Mod-
NSWINDSHIELD WIPERS AND WASHERS 8K - 1

CONDITION POSSIBLE CAUSES CORRECTION
BLADES CHATTER 1. FOREIGN SUBSTANCE SUCH
AS POLISH ON GLASS OR
BLADES.
2. ARMS TWISTED, BLADE AT
WRONG ANGLE ON GLASS.
3. BLADE STRUCTURE BENT.
4. BLADE ELEMENT HAS
PERMANENT SET.1. CLEAN GLASS AND BLADE
ELEMENT WITH NON-ABRASIVE
CLEANER.
2. REPLACE ARM.
3. REPLACE BLADE.
4. REPLACE BLADE ELEMENT.
WIPER KNOCK AT REVERSAL 1. LINKAGE BUSHINGS WORN.
2. ARMATURE ENDPLAY IN
MOTOR.1. REPLACE WORN LINK. REFER
TO WIPER LINKAGE REMOVAL
AND INSTALLATION.
2. REPLACE WIPER MOTOR.
REFER TO WIPER MOTOR
REMOVAL AND INSTALLATION.
WIPER MOTOR WILL NOT RUN 1. BLOWN FUSE.
2. NEW FUSE BLOWS.
3. NEW FUSE BLOWS.
4. NO VOLTAGE AT MOTOR.
5. POOR GROUND.1. REPLACE FUSE, AND RUN
SYSTEM.
2. CHECK FOR SHORT IN WIRING
OR SWITCH.
3. REPLACE FUSE, REMOVE
MOTOR CONNECTOR, TURN
SWITCH ON, FUSE DOES NOT
BLOW, REPLACE MOTOR.
4. CHECK SWITCH AND WIRING
HARNESS. REFER TO GROUP 8W,
WIRING DIAGRAMS.
5. REPAIR GROUND WIRE
CONNECTION AS NECESSARY.
NSWINDSHIELD WIPERS AND WASHERS 8K - 3
DIAGNOSIS AND TESTING (Continued)

LAMPS
CONTENTS
page page
BULB APPLICATION...................... 25
EXTERIOR LAMP BULB SERVICE............ 9
EXTERIOR LAMP SERVICE................. 14HEADLAMP ALIGNMENT................... 5
INTERIOR LAMPS........................ 18
LAMP DIAGNOSIS........................ 1
LAMP DIAGNOSIS
INDEX
page page
GENERAL INFORMATION
ELECTRONIC DAYTIME RUNNING LIGHT (DRL).1
GENERAL INFORMATION.................. 1SAFETY PRECAUTIONS................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 2
GENERAL INFORMATION
GENERAL INFORMATION
NS vehicles use lighting on the interior and exte-
rior of the vehicle for illuminating and indicating
purposes. Lighting circuits are protected by fuses.
Lighting circuits require an overload protected power
source, on/off device, lamps and body ground to oper-
ate properly. Plastic lamps require a wire in the har-
ness to supply body ground to the lamp socket.
Replace sockets and bulbs that are corroded.
Some of the interior and exterior lighting functions
are governed by the body controller. The headlamp,
dome, and the door ajar switches provide signals to
the body controller. The body controller in turn acti-
vates relay(s) in order to provide either a ground or
feed line to the appropriate lamp(s).
Wire connectors can make intermittent contact or
become corroded. Before coupling wire connectors,
inspect the terminals inside the connector. Male ter-
minals should not be bent or disengaged from the
insulator. Female terminals should not be sprung
open or disengaged from the insulator. Bent and
sprung terminals can be repaired using needle nose
pliers and pick tool. Corroded terminals appear
chalky or green. Corroded terminals should be
replaced to avoid recurrence of the problem symp-
toms.
Begin electrical system failure diagnosis by testing
related fuses in the fuse block and power distribution
center. Verify that bulbs are in good condition andtest continuity of the circuit ground. Refer to Group
8W, Wiring Diagrams, for component location and cir-
cuit information.SAFETY PRECAUTIONS
WARNING: EYE PROTECTION SHOULD BE USED
WHEN SERVICING GLASS COMPONENTS. PER-
SONAL INJURY CAN RESULT.
CAUTION: Do not touch the glass of halogen bulbs
with fingers or other possibly oily surface, reduced
bulb life will result.
Do not use bulbs with higher candle power than
indicated in the Bulb Application table at the end of
this group. Damage to lamp and/or Daytime Run-
ning Lamp Module can result.
Do not use fuses, circuit breakers or relays hav-
ing greater amperage value than indicated on the
fuse panel or in the Owners Manual.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
ELECTRONIC DAYTIME RUNNING LIGHT (DRL)
The Combination Flasher/DRL is a module provid-
ing turn signal, hazard warning, and daytime run-
NSLAMPS 8L - 1

HEADLAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
HEADLAMPS ARE DIM
WITH ENGINE IDLING OR
IGNITION TURNED OFF1. Loose or corroded battery cables. 1. Clean and secure battery cable clamps
and posts.
2. Loose or worn generator drive belt. 2. Adjust or replace generator drive belt.
3. Charging system output too low. 3. Test and repair charging system. Refer to
Group 8A.
4. Battery has insufficient charge. 4. Test battery state-of -charge. Refer to
Group 8A.
5. Battery is sulfated or shorted. 5. Load test battery. Refer to Group 8A.
6. Poor lighting circuit Z1-ground. 6. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
7. Low beam headlamp / foglamp fuse
blown.7. Locate cause of blown fuse and repair.
HEADLAMP BULBS BURN
OUT FREQUENTLY1. Charging system output too high. 1. Test and repair charging system. Refer to
Group 8A.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and
splices. Refer to Group 8W.
HEADLAMPS ARE DIM
WITH ENGINE RUNNING
ABOVE IDLE1. Charging system output too low. 1. Test and repair charging system. Refer to
Group 8A.
2. Poor lighting circuit Z1-ground. 2. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
3. High resistance in headlamp circuit. 3. Test amperage draw of headlamp circuit.
4. Low beam headlamp / fog lamp
fuse blown.4. Locate cause of blown fuse and repair.
HEADLAMPS FLASH
RANDOMLY1. Poor lighting circuit Z1-ground. 1. Test for voltage drop across Z1-ground
locations, refer to Group 8W.
2. High resistance in headlamp circuit. 2. Test amperage draw of headlamp circuit.
3. Loose or corroded terminals or
splices in circuit.3. Inspect and repair all connectors and
splices. Refer to Group 8W.
HEADLAMPS DO NOT
ILLUMINATE1. No voltage to headlamps. 1. Repair open headlamp circuit. Refer to
Group 8W.
2. No Z1-ground at headlamps. 2. Repair circuit ground. Refer to Group 8W.
3. Faulty headlamp switch. 3. Replace headlamp switch.
4. Faulty headlamp dimmer (multi-
function) switch.4. Replace multi-function switch.
5. Broken connector terminal or wire
splice in headlamp circuit.5. Repair connector terminal or wire splice.
6. Defective or burned out bulb. 6. Replace bulb.
7. Body controller malfunction. 7. Refer to appropriate body controller
diagnostics.
NSLAMPS 8L - 3
DIAGNOSIS AND TESTING (Continued)

FOG LAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
FOG LAMPS ARE DIM WITH
ENGINE IDLING OR IGNITION
TURNED OFF.1. Loose or corroded battery
cables.1. Clean and secure battery cable
clamps and posts.
2. Loose or worn generator drive
belt.2. Adjust or replace generator drive
belt.
3. Charging system output too low. 3. Test and repair charging system.
Refer to Group 8A,
4. Battery has insufficient charge. 4. Test battery state-of -charge.
Refer to Group 8A.
5. Battery is sulfated or shorted. 5. Load test battery. Refer to Group
8A.
6. Poor lighting circuit Z1-ground. 6. Test for voltage drop across
Z1-ground locations. Refer to Group
8W.
FOG LAMP BULBS BURN OUT
FREQUENTLY1. Charging system output too high. 1. Test and repair charging system.
Refer to Group 8A.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors
and splices. Refer to Group 8W.
FOG LAMPS ARE DIM WITH
ENGINE RUNNING ABOVE IDLE1. Charging system output too low. 1. Test and repair charging system.
Refer to Group 8A.
2. Poor lighting circuit Z1-ground. 2. Test for voltage drop across
Z1-ground locations. Refer to Group
8W.
3. High resistance in fog lamp
circuit.3. Test amperage draw of fog lamp
circuit.
FOG LAMPS FLASH RANDOMLY 1. Poor lighting circuit Z1-ground. 1. Test for voltage drop across
Z1-ground locations. Refer to Group
8W.
2. High resistance in fog lamp
circuit.2. Test amperage draw of fog lamp
circuit.
3. Faulty fog lamp switch. 3. Replace fog lamp switch.
4. Loose or corroded terminals or
splices in circuit.4. Inspect and repair all connectors
and splices. Refer to Group 8W.
FOG LAMPS DO NOT ILLUMINATE 1. Blown fuse for fog lamp. 1. Replace fuse. Refer to Group
8W.
2. No Z1-ground at fog lamps. 2. Repair circuit ground. Refer to
Group 8W.
3. Faulty fog lamp switch. 3. Replace fog lamp switch.
4. Broken connector terminal or
wire splice in fog lamp circuit.4. Repair connector terminal or wire
splice.
5. Defective or burned out bulb. 5. Replace bulb.
8L - 4 LAMPSNS
DIAGNOSIS AND TESTING (Continued)