battery location CHRYSLER VOYAGER 1996 User Guide

CHARGING SYSTEM RESISTANCE TESTS
These tests will show the amount of voltage drop
across the generator output wire from the generator
output (B+) terminal to the battery positive post.
They will also show the amount of voltage drop from
the ground (-) terminal on the generator or case
ground (Fig. 1) to the battery negative post.
A voltmeter with a 0±18 volt DC scale should be
used for these tests. By repositioning the voltmeter
test leads, the point of high resistance (voltage drop)
can easily be found.
PREPARATION
(1) Before starting test, make sure battery is in
good condition and is fully-charged. See Group 8A,
Battery for more information.
(2) Check condition of battery cables at battery.
Clean if necessary.
(3) Start the engine and allow it to reach normal
operating temperature.
(4) Shut engine off.
(5) Connect an engine tachometer.
(6) Fully engage the parking brake.
TEST
(1) Start engine.
(2) Place heater blower in high position.
(3) Turn on headlamps and place in high-beam
position.
(4) Turn rear window defogger on.
(5) Bring engine speed up to 2400 rpm and hold.
(6) Testing (+ positive) circuitry:
(a) Touch the negative lead of voltmeter directly
to battery positivePOST(Fig. 2).
(b) Touch the positive lead of voltmeter to the
B+ output terminal stud on the generator (not the
terminal mounting nut). Voltage should be no
higher than 0.6 volts. If voltage is higher than 0.6
volts, touch test lead to terminal mounting stud
nut and then to the wiring connector. If voltage is
now below 0.6 volts, look for dirty, loose or poor
connection at this point. Also check condition of the
generator output wire-to-battery bullet connector.
Refer to Group 8, Wiring for connector location. A
voltage drop test may be performed at each (-
ground) connection in this circuit to locate the
excessive resistance.
(7) Testing (- ground) circuitry:
(a) Touch the positive lead of voltmeter directly
to battery negativePOST.
(b) Touch the negative lead of voltmeter to the
generator case. Voltage should be no higher than
0.3 volts. If voltage is higher than 0.3 volts, touch
test lead to generator case and then to the engine
block. If voltage is now below 0.3 volts, look for
dirty, loose or poor connection at this point. A volt-
age drop test may be performed at each connectionin this circuit to locate the excessive resistance.
This test can also be performed between the gener-
ator case and the engine. If test voltage is higher
than 0.3 volts, check for corrosion at generator
mounting points or loose generator mounting.
CURRENT OUTPUT TEST
The current output test will determine if the
charging system can deliver its minimum test cur-
rent (amperage) output. Refer to the Specifications
section at the end of this group for minimum test
current (amperage) requirements.
The first part of this test will determine the com-
bined amperage output of both the generator and the
Electronic Voltage Regulator (EVR) circuitry.
PREPARATION
(1) Determine if any Diagnostic Trouble Codes
(DTC) exist. To determine a DTC, refer to On-Board
Diagnostics in this group. For repair, refer to the
appropriate Powertrain Diagnostic Procedures man-
ual.
(2) Before starting test, make sure battery is in
good condition and is fully-charged. See Group 8A,
Battery for more information.
(3) Check condition of battery cables at battery.
Clean if necessary.
(4) Perform the Voltage Drop Test. This will
ensure clean and tight generator/battery electrical
connections.
(5) Be sure the generator drive belt is properly
tensioned. Refer to Group 7, Cooling System for
information.
(6) A volt/amp tester equipped with both a battery
load control (carbon pile rheostat) and an inductive-
type pickup clamp (ammeter probe) will be used for
this test. Refer to operating instructions supplied
with tester. When using a tester equipped with an
inductive-type clamp, removal of wiring at the gener-
ator will not be necessary.
(7) Start the engine and allow it to reach operating
temperature.
(8) Shut engine off.
(9) Turn off all electrical accessories and all vehicle
lighting.
(10) Connect the volt/amp tester leads to the bat-
tery. Be sure the carbon pile rheostat control is in the
OPEN or OFF position before connecting leads. See
Load Test in Group 8A, Battery for more information.
Also refer to the operating instructions supplied with
test equipment.
(11) Connect the inductive clamp (ammeter probe).
Refer to the operating instructions supplied with test
equipment.
(12) If volt/amp tester is not equipped with an
engine tachometer, connect a separate tachometer to
the engine.
8C - 4 CHARGING SYSTEMNS
DIAGNOSIS AND TESTING (Continued)

(2) Insert the trim stick (special tool #C-4755)
between access cover and radio bezel, above conve-
nience bin - cup holder.
(3) Carefully pry the access cover from the instru-
ment panel (Fig. 5).
(4) Separate the access cover from the vehicle.
(5) Using needle-nose pliers, carefully squeeze the
vertical metal legs of the lamp hood.
(6) Lift the lamp hood upward from the cup holder
tray.
(7) Carefully pull the lamp and wiring rearward
from the instrument panel (Fig. 6).
(8) Pull the lamp hood from the lamp socket.
(9) Pull bulb from socket.
INSTALLATION
For installation, for reverse the above procedures.
CONVENIENCE BIN TRACK
REMOVAL
(1) Remove the convenience bin - cup holder. Refer
to Convenience Bin - Cup Holder Removal and
Installation procedure in this section.
(2) Remove the screw access cover from the bottom
of the radio bezel (Fig. 5).(3) Remove the center bezel.
(4) Remove the convenience bin track attaching
screws and pull the convenience bin track rearward
to disengage the rear guide studs from instrument
panel (Fig. 7).
(5) Disengage the clip holding convenience bin
lamp to track.
(6) Remove the convenience bin track.
INSTALLATION
For installation, reverse the above procedures.
BODY CONTROL MODULE (BCM)
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove lower steering column cover and knee
blocker reinforcement.
Fig. 4 Unused Convenience Bin Lamp Socket
Location
Fig. 5 Convenience Bin Access Cover
Fig. 6 Convenience Bin Lamp Bulb
Fig. 7 Convenience Bin Track
8E - 18 INSTRUMENT PANEL AND SYSTEMSNS
REMOVAL AND INSTALLATION (Continued)

INSTALLATION
For installation, reverse the above procedures.
BODY CONTROL MODULE (BCM)
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove lower steering column cover and knee
blocker reinforcement.
(3) Disconnect two wire connectors from bottom of
Body Control Module (BCM)
(4) Remove bolts holding Junction Block to dash
panel mounting bracket (Fig. 8).
(5) Remove Junction Block from mounting bracket.
(6) Remove screws holding Body Control Module to
Junction Block.(7) Slide Body Control Module downward to disen-
gage guide studs on Junction Block from channels on
BCM mounting bracket.
(8) Remove Body Control Module from Junction
Block.
INSTALLATION
For installation, reverse the above procedures.
CIGAR LIGHTER BASE
REMOVAL
(1) Look inside and note position of the retaining
bosses (Fig. 9).
(2) Using external snap ring pliers with 90 degree
tips. Insert pliers with tips against bosses and
squeeze forcing bosses out of base.
(3) Pull out base, through mounting ring, gently
rocking pliers.
(4) Disconnect the base wires.
(5) Set base aside. Remove light ring and discon-
nect wire.
INSTALLATION
(1) Connect wire to light ring and install ring.
(2) Connect wires to base.
(3) Push base into the bezel till it locks.
(4) Install lighter element and check operation of
element.
Fig. 7 Ash Receiver/Cup Holder Track RHD
Fig. 8 Body Control Module Location
Fig. 9 Cigar Lighter Base Removal
8E - 16 INSTRUMENT PANEL AND SYSTEMSNS/GS
REMOVAL AND INSTALLATION (Continued)

AUDIO SYSTEMS
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
ANTENNA.............................. 1
CHOKEÐINFINITY SPEAKERS.............. 2
INTERFERENCE ELIMINATION.............. 1
NAME BRAND SPEAKER RELAY............ 3
RADIO IGNITION INTERFERENCE........... 2
RADIOS................................ 1
REMOTE RADIO SWITCHES................ 3
DIAGNOSIS AND TESTING
ANTENNA.............................. 3AUDIO SYSTEM......................... 4
RADIO................................. 4
REMOTE RADIO SWITCHES................ 6
REMOVAL AND INSTALLATION
ANTENNA EXTENSION CABLE.............. 7
ANTENNA MAST AND CABLE LEAD......... 7
D±PILLAR SPEAKER.................... 10
FRONT DOOR SPEAKER................... 9
INSTRUMENT PANEL SPEAKER............. 8
QUARTER PANEL SPEAKER............... 10
RADIO/TAPE/CD PLAYER.................. 8
REMOTE RADIO SWITCHES................ 9
GENERAL INFORMATION
INTRODUCTION
Operating instructions for the factory installed
audio systems can be found in the Owner's Manual
provided with the vehicle.
NS vehicles are equipped with an Ignition Off
Draw (IOD) fuse in the power distribution center
located in the engine compartment. After the IOD
fuse or battery has been disconnected, the radio sta-
tion sets and clock will require resetting.
DESCRIPTION AND OPERATION
ANTENNA
All models use a fixed-length stainless steel rod-
type antenna mast, installed at the right front fender
of the vehicle. The antenna mast is connected to the
center wire of the coaxial antenna cable, and is not
grounded to any part of the vehicle.
To eliminate static, the antenna base must have a
good ground. The coaxial antenna cable shield (the
outer wire mesh of the cable) is grounded to the
antenna base and the radio chassis.
The antenna coaxial cable has an additional dis-
connect, located near the right end of the instrument
panel. This additional disconnect allows the instru-
ment panel assembly to be removed and installed
without removing the radio.
The factory-installed Electronically Tuned Radios
(ETRs) automatically compensate for radio antenna
trim. Therefore, no antenna trimmer adjustment isrequired or possible when replacing the receiver or
the antenna.
INTERFERENCE ELIMINATION
Some components used on the vehicles are
equipped with a capacitor to suppress radio fre-
quency interference/static.
Capacitors are mounted in various locations inter-
nal to the generator, instrument cluster and wind-
shield wiper motor.
To eliminate radio interference, ground straps are
used in different areas of the vehicle. These ground
circuits should be securely tightened to assure good
metal to metal contact. The ground straps conduct
very small high frequency electrical signals to ground
and require clean surface contact area. The radio
ground is supplied from the instrument panel har-
ness and is attached to the rear of the radio. Some
engines have other ground straps to eliminate fur-
ther radio interference:
²Radio chassis to instrument panel structure
²Engine to dash panel
²Engine to chassis
²A/C h valve to dash panel
Radio resistance type spark plug cables in the high
tension circuit of the ignition system complete the
interference suppression. Faulty or deteriorated
spark plug wires should be replaced.
RADIOS
Available factory-installed radio receivers for this
model include an AM/FM/cassette (RAS sales code),
an AM/FM/cassette/5-band graphic equalizer with CD
changer control feature (RBN sales code), an AM/FM/
NSAUDIO SYSTEMS 8F - 1

bracket behind the junction block/body control mod-
ule (Fig. 5).
REMOTE RADIO SWITCHES
A remote radio control switch option is available on
LXI models sold in North America with the AM/FM/
cassette/5-band graphic equalizer with CD changer
control feature (RBN sales code), or the AM/FM/CD/
cassette/3-band graphic equalizer (RAZ sales code)
radio receivers. Two rocker-type switches are
mounted on the back (instrument panel side) of the
steering wheel spokes. The switch on the left spoke is
the seek switch and has seek up, seek down, and pre-
set station advance functions. The switch on the
right spoke is the volume control switch and has vol-
ume up, and volume down functions (Fig. 6).
These switches are resistor multiplexed units that
are hard-wired to the Body Control Module (BCM)
through the clockspring. The BCM sends the propermessages on the Chrysler Collision Detection (CCD)
data bus network to the radio receiver. For diagnosis
of the BCM or the CCD data bus, the use of a DRB
scan tool and the proper Diagnostic Procedures man-
ual are recommended. For more information on the
operation of the remote radio switch controls, refer to
the owner's manual in the vehicle glove box.
NAME BRAND SPEAKER RELAY
Relay is located in the junction block. To test relay
refer to the Audio Diagnostic Test Procedures or use
a known good relay.
DIAGNOSIS AND TESTING
ANTENNA
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
The following four tests are used to diagnose the
antenna with an ohmmeter:
²Test 1- Mast to ground test
²Test 2- Tip-of-mast to tip-of-conductor test
²Test 3- Body ground to battery ground test
²Test 4- Body ground to coaxial shield test.
The ohmmeter test lead connections for each test
are shown in Antenna Tests (Fig. 7).
NOTE: This model has a two-piece antenna coaxial
cable. Tests 2 and 4 must be conducted in two
steps to isolate a coaxial cable problem; from the
coaxial cable connection under the right end of the
instrument panel near the right cowl side panel to
the antenna base, and then from the coaxial cable
connection to the radio chassis connection.
TEST 1
Test 1 determines if the antenna mast is insulated
from the base. Proceed as follows:
(1) Unplug the antenna coaxial cable connector
from the radio chassis and isolate.
(2) Connect one ohmmeter test lead to the tip of
the antenna mast. Connect the other test lead to the
antenna base. Check for continuity.
(3) There should be no continuity. If continuity is
found, replace the faulty or damaged antenna base
and cable assembly.
Fig. 5 Choke Location
Fig. 6 Remote Radio Switch Operational View
NSAUDIO SYSTEMS 8F - 3
DESCRIPTION AND OPERATION (Continued)

HORNS
CONTENTS
page page
DESCRIPTION AND OPERATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
HORN RELAY........................... 1
HORN SYSTEM.......................... 3
HORN SYSTEM TEST..................... 3HORN................................. 1
HORNS SOUND CONTINUOUSLY............ 3
HORNS WILL NOT SOUND................ 2
REMOVAL AND INSTALLATION
HORN SWITCH.......................... 4
HORNS................................ 4
DESCRIPTION AND OPERATION
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 horn circuit consists of a horn switch, clock-
spring, horn relay, horns and Body Control Module
(Fig. 1). The horn switch is a membrane switch
located in the airbag cover. The horns are located for-
ward of the left front wheel behind the bumper fas-
cia. The horn relay plugs into the junction block. For
circuit information and component locations refer to
Group 8W, Wiring Diagrams.
DIAGNOSIS AND TESTING
HORN
(1) Disconnect wire connector at horn.
(2) Using a voltmeter, connect one lead to ground
terminal and the other lead to the positive wire ter-
minal (Fig. 3).
(3) Depress the horn switch, battery voltage
should be present.
(4) If no voltage, refer to Horn Will Not Sound. If
voltage is OK, go to step Step 5.
(5) Using ohmmeter, test ground wire for continu-
ity to ground.
(6) If no ground repair as necessary.
(7) If wires test OK and horn does not sound,
replace horn.
HORN RELAY
(1) Remove horn relay.
(2) Using ohmmeter, test between relay connector
terminals 85 to 86 for 70 to 75 ohms resistance (Fig.
2). If resistance not OK, replace relay.
(3) Test for continuity between ground and termi-
nal 85 of horn relay.
(a) When the horn switch is not depressed, no
continuity should be present.
(b) Continuity to ground when horn switch is
depressed.
(c) If continuity is not correct repair horn
switch or wiring as necessary, refer to Group 8W,
Wiring Diagrams Group 8M Restraint System for
Driver's Airbag Module removal procedures.
(4) Using voltmeter, test voltage at:
(a) Terminals 30 and 86 of the horn relay to
body ground.
(b) If NO voltage check fuse 7 of the BCM.
(c) If incorrect voltage repair as necessary. Refer
to Group 8W, Wiring Diagrams.
(5) Insert a jumper wire between terminal 30 and
87 of the power distribution center.
(a) If horn sounds replace relay.
Fig. 1 Horn System
NSHORNS 8G - 1

ule (BCM). If a problem occurs in the electronic com-
ponents, wiring, switch (except integral motor park
switch) and wiper motor a Diagnostic Trouble Code
(DTC) will be stored in the BCM memory. DTC's can
be retrieved using a scan tool (DRB). Refer to proper
Body Diagnostic Procedures manual for DTC descrip-
tions and retrieval information.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
chart.
FAILED PARK SWITCH
If the wiper park switch has failed the windshield
wipers will operate as follows:SWITCH OFFÐWipers stop in current location
regardless of the park signal.
INTERMITTENT MODEÐWipers operate at low
speed for one or more extra wipes or continuously.
LOW SPEEDÐWipers operate at low speed.
HIGH SPEEDÐWipers operate at high speed.
PULSE WIPEÐWipers will not operate.
WIPE AFTER WASHÐWipers operate at low
speed in any mode setting. Wipers operate only while
wash button is depressed with switch in OFF mode,
wipers stop in mid-cycle when button is released.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
table.
WIPER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER BLADES DO NOT PARK
PROPERLY1. WIPER ARMS IMPROPERLY
PARKED.
2. WIPER ARMS ARE LOOSE ON
PIVOT SHAFT.
3. MOTOR CRANK LOOSE AT
OUTPUT SHAFT.1. REMOVE WIPER ARMS AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
2. REMOVE WIPER ARM AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
3. REMOVE WIPER ARM, RUN
WIPER MOTOR TO PARK
POSITION AND REMOVE THE
MODULE. WITHOUT ROTATING
THE MOTOR OUTPUT SHAFT,
REMOVE THE CRANK AND CLEAN
ANY FOREIGN MATTER FROM
THE MOTOR SHAFT. INSTALL THE
MOTOR CRANK IN ITS ORIGINAL
POSITION.
MOTOR STOPS IN ANY
POSITION WHEN THE SWITCH
IS TURNED OFF1. OPEN PARK CIRCUIT. 1. CHECK PARK SWITCH BY
DISCONNECTING THE WIRE
CONNECTOR AND APPLY
BATTERY VOLTAGE TO PIN 4.
PLACE A JUMPER WIRE FROM
PIN 2 TO PIN 3 AND THEN TO AN
EXTERNAL GROUND. REPLACE
MOTOR IF IT DOES NOT PARK.
MOTOR WILL NOT STOP WHEN
THE SWITCH IS TURNED OFF1. FAULTY SWITCH.
2. LOCK OF DYNAMIC BRAKE ON
WET GLASS.1. CHECK SWITCH IN LOW, HIGH
AND INTERMITTENT POSITION.
2. ENSURE PARK SWITCH HAS
CLEAN GROUND.
WIPER BLADES SLAP AGAINST
COWL SCREEN OR WINDOW
MOLDINGS.1. WIPER ARMS ARE PARKED
INCORRECTLY.1. PARK WIPER ARMS. REFER TO
WIPER ARM ADJUSTMENT.
8K - 2 WINDSHIELD WIPERS AND WASHERSNS
DIAGNOSIS AND TESTING (Continued)

ning light functions (for Canadian vehicles), and has
been designed with internal relays to take advantage
of low current switching requirements in the vehicle.
It is plugged into the junction block at positions
three and four (Fig. 1), where all wiring associated
with its operation is terminated. The junction block
is adjacent to and left of the steering column of the
vehicle. For diagnostic information refer to Group 8J,
Turn Signal and Flashers.
On vehicles built for use in the United States, only
position four is used. Vehicles built for use in Canada
utilize both positions three and four.
To gain access to the device, remove the lower
steering column cover and knee blocker. Refer to
Group 8E, Instrument Panel and Gauges.SYSTEM FUNCTION
The combination-flasher/DRL may be operated in
its hazard warning mode either with or without the
ignition circuit being active. However, in order to
operate in the turn signal mode or the DRL mode,
the ignition circuit must be completed to the module.
While the combination-flasher portion is idle, there
is no current drawn through the module. The device
does not become active in the turn signal or hazard
warning modes until a signal ground circuit is sup-
plied to either of the turn signal inputs or the hazard
warning input. With the ignition OFF, there is no
current drawn through the module.
While the ignition is ON, the front turn signal fil-
aments are illuminated steadily thus providing the
DRL function. The DRL function may be inhibited by
applying a signal ground input from either the park
brake circuit or the headlamp relay activation circuit.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
When a vehicle experiences problems with the
headlamp system, verify the condition of the battery
connections, charging system, headlamp bulbs, wire
connectors, relay, high beam dimmer switch and
headlamp switch. Refer to Group 8W, Wiring Dia-
grams, for component locations and circuit informa-
tion.
Fig. 1 Junction Block Terminal PINS
8L - 2 LAMPSNS
GENERAL INFORMATION (Continued)

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)