battery DODGE NEON 1999 Service Manual PDF

RESTRAINT SYSTEM
CONTENTS
page page
GENERAL INFORMATION
WARNINGS AND PRECAUTIONS............ 1
DESCRIPTION AND OPERATION
AIRBAG CONTROL MODULE............... 1
CLOCKSPRING.......................... 2
DRIVER AND PASSENGER AIRBAG MODULE . . 2
DIAGNOSIS AND TESTING
AIRBAG SYSTEM TEST................... 3
SERVICE PROCEDURES
CLEANUP PROCEDURE................... 3HANDLING AIRBAG MODULE.............. 3
MAINTENANCE INSPECTION............... 4
REMOVAL AND INSTALLATION
AIRBAG CONTROL MODULE (ACM)......... 4
CLOCKSPRING.......................... 8
DRIVER AIRBAG MODULE................. 9
PASSENGER AIRBAG MODULE............. 9
STEERING WHEEL...................... 10
ADJUSTMENTS
CLOCKSPRING CENTERING PROCEDURE.... 11
GENERAL INFORMATION
WARNINGS AND PRECAUTIONS
WARNING: THIS SYSTEM IS A SENSITIVE, COM-
PLEX ELECTRO±MECHANICAL UNIT. DISCONNECT
AND ISOLATE THE BATTERY NEGATIVE CABLE
BEFORE BEGINNING AIRBAG SYSTEM COMPO-
NENT REMOVAL OR INSTALLATION PROCEDURES.
THIS WILL DISABLE THE AIRBAG SYSTEM. FAIL-
URE TO DISCONNECT THE BATTERY COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
ALLOW SYSTEM CAPACITOR TO DISCHARGE
FOR TWO MINUTES BEFORE REMOVING AIRBAG
COMPONENTS.
DO NOT PLACE AN INTACT UNDEPLOYED AIR-
BAG FACE DOWN ON A SOLID SURFACE, THE AIR-
BAG WILL PROPEL INTO THE AIR IF
ACCIDENTALLY DEPLOYED AND COULD RESULT
IN PERSONAL INJURY. WHEN CARRYING OR HAN-
DLING AN UNDEPLOYED AIRBAG MODULE, THE
TRIM SIDE OF THE AIRBAG SHOULD BE POINTING
AWAY FROM THE BODY TO MINIMIZE POSSIBILITY
OF INJURY IF ACCIDENTAL DEPLOYMENT
OCCURS.
REPLACE AIRBAG SYSTEM COMPONENTS WITH
MOPARTREPLACEMENT PARTS. SUBSTITUTE
PARTS MAY APPEAR INTERCHANGEABLE, BUT
INTERNAL DIFFERENCES MAY RESULT IN INFE-
RIOR OCCUPANT PROTECTION.
WEAR SAFETY GLASSES, RUBBER GLOVES,
AND LONG SLEEVES CLOTHING WHEN CLEANING
POWDER RESIDUE FROM VEHICLE AFTER AIRBAG
DEPLOYMENT. SODIUM HYDROXIDE POWDER
RESIDUE EMITTED FROM A DEPLOYED AIRBAGCAN CAUSE SKIN IRRITATION. FLUSH AFFECTED
AREA WITH COOL WATER IF IRRITATION IS EXPE-
RIENCED. IF NASAL OR THROAT IRRITATION IS
EXPERIENCED, EXIT THE VEHICLE FOR FRESH AIR
UNTIL THE IRRITATION CEASES. IF IRRITATION
CONTINUES, SEE A PHYSICIAN.
DO NOT USE A REPLACEMENT AIRBAG THAT IS
NOT IN THE ORIGINAL PACKAGING, IMPROPER
DEPLOYMENT AND PERSONAL INJURY CAN
RESULT.
THE FACTORY INSTALLED FASTENERS,
SCREWS AND BOLTS USED TO FASTEN AIRBAG
COMPONENTS, ARE SPECIFICALLY DESIGNED
FOR THE AIRBAG SYSTEM. DO NOT USE SUBSTI-
TUTE FASTENERS, USE ONLY ORIGINAL EQUIP-
MENT FASTENERS LISTED IN THE PARTS
CATALOG WHEN FASTENER REPLACEMENT IS
REQUIRED.
NOTE: Airbags should be stored in a cool dry loca-
tion away from excessive heat and static electrical
activity with the fabric airbag facing UP, or a prema-
ture deployment can result.
If the Driver/Passenger Airbag Module is defective
and not deployed, refer to Chrysler Corporation cur-
rent return list for proper handling procedures.
DESCRIPTION AND OPERATION
AIRBAG CONTROL MODULE
The Airbag Control Module (ACM) contains the
safing sensor and energy reserve capacitor. The saf-
ing sensor is located inside the ACM. The module is
mounted on the tunnel/floor pan between the gear
PLRESTRAINT SYSTEM 8M - 1

DIAGNOSIS AND TESTING
AIRBAG SYSTEM TEST
(1) Disconnect and isolate the negative battery
cable.
(2) Connect scan tool (DRB) to Data Link connec-
tor, located at right side of the steering column and
at the lower edge of the lower instrument panel.
(3) Turn the ignition key to ON position. Exit vehi-
cle with scan tool. Use the latest version of the
proper cartridge.
(4) After checking that no one is inside the vehicle,
connect the battery negative terminal.
(5) Using the scan tool, read and record active
diagnostic code data.
(6) Read and record any stored diagnostic codes.
(7) Refer to the Passive Restraint Diagnostic Test
Manual if any diagnostic codes are found in Step 5 or
Step 6.
(8) Erase stored diagnostic codes if there are no
active diagnostic codes. If problems remain, diagnos-
tic codes will not erase. Refer to the Passive
Restraint Diagnostic Test Manual to diagnose the
problem.If the airbag warning lamp either fails
to light with the ignition switch on, or the light
goes on and stays on, there is a system malfunc-
tion. Refer to the Passive Restraint Diagnostic
Test Manual to diagnose the problem.
SERVICE PROCEDURES
CLEANUP PROCEDURE
Roll or fold the passenger airbag towards the
instrument panel surface and close the door over the
folded bag. Then tape the door shut.
Use a vacuum cleaner to remove any residual pow-
der from the vehicle interior. Work from the outside
in to avoid kneeling or sitting in a contaminated
area. Vacuum the heater and A/C outlets as well (Fig.
4). If the heater or air conditioner was in RECIRC
mode at time of airbag deployment, operate blower
motor on low speed and vacuum powder residue
expelled from the heater and A/C outlets. Multiple
vacuum cleaning may to necessary to decontaminate
the interior of the vehicle.
NOTE: Dispose deployed airbag properly, contact
dealer or government agency for disposal recom-
mendations.
SERVICE OF DEPLOYED AIRBAG MODULE
DRIVER AIRBAG
After a Driver Airbag Module has been deployed
the following components must be replaced becausethey cannot be reused. Other driver airbag system
components are replaced if damaged.
²Driver Airbag Module
²Clockspring assembly
PASSENGER AIRBAG
After a Passenger Airbag Module has been
deployed the following components must be replaced
because they cannot be reused.
²Passenger Airbag Module
²Right trim panel
The lower instrument panel knee blocker, top
cover, and any other components should be replaced
if damaged.
HANDLING AIRBAG MODULE
DEPLOYED MODULE
The vehicle interior may contain a very small
amount of sodium hydroxide powder, a by-product of
airbag deployment. Sodium hydroxide powder can
irritate the skin, eyes, nose and throat. Wear safety
glasses, rubber gloves, and long sleeved clothing
when cleaning any of the powder residue from the
vehicle.
If you find that the cleanup is irritating your skin,
run cool water over the affected area. Also, if you
experience nasal or throat irritation, exit the vehicle
for fresh air until the irritation ceases. If irritation
continues, see a physician.
UNDEPLOYED
The airbag module(s) must be stored in its original
special container until used for service. At no time
should a source of electricity be permitted near the
inflator on the back of an airbag module. When car-
rying or handling an undeployed airbag module, the
trim side of the airbag should be pointing away from
the body to minimize possibility of injury if acciden-
Fig. 4 Vacuum Heater and A/C Outlets
PLRESTRAINT SYSTEM 8M - 3

tal deployment occurs. Do not place undeployed air-
bag face down on a solid surface, the airbag will
propel into the air if accidental deployment occurs.
MAINTENANCE INSPECTION
(1) Check the airbag warning lamp for proper
operation as follows:
(a) Turn ignition switch to the ON position, the
airbag warning lamp should light. If not, test the
system using a scan tool and Passive Restraint
System Diagnostic Procedures Manual. Repair as
required.
(b) The airbag warning lamp lights, but fails to
go out after eight seconds. Test the system using a
scan tool and Passive Restraint System Diagnostic
Procedures Manual. Repair as required.
(c) After correcting active malfunction erase
stored diagnostic codes.
REMOVAL AND INSTALLATION
AIRBAG CONTROL MODULE (ACM)
REMOVAL
WARNING: THE ACM CONTAINS A SAFING SEN-
SOR WHICH ENABLES THE SYSTEM TO DEPLOY
THE AIRBAGS. TO AVOID ACCIDENTAL DEPLOY-
MENT, NEVER CONNECT THE ACM ELECTRICALLY
TO THE SYSTEM WHILE VEHICLE BATTERY IS
CONNECTED.
DISCONNECT AND ISOLATE THE BATTERY NEG-
ATIVE (GROUND) CABLE BEFORE BEGINNING ANY
AIRBAG SYSTEM COMPONENT REMOVAL OR
INSTALLATION PROCEDURE. THIS WILL DISABLE
THE AIRBAG SYSTEM. FAILURE TO DISCONNECT
BATTERY COULD RESULT IN ACCIDENTAL AIRBAG
DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
ALLOW SYSTEM CAPACITOR TO DISCHARGE
FOR 2 MINUTES BEFORE REMOVING ANY AIRBAG
COMPONENTS.
CAUTION: Failure to follow the parking brake ser-
vice procedures can result in damage to the park-
ing brake mechanism.
(1) Disconnect and isolate the battery negative
cable.
(2) Manual transaxle only, remove shifter knob
fastener and remove shifter knob.
(3) Remove screws attaching rear of center console
assembly to console bracket (Fig. 5) or (Fig. 6).
(4) Remove the two screws located in cup holders
(Fig. 7), attaching front of center console assembly to
console bracket.
Fig. 5 Attaching Screws At Rear Of Center Console
With/Without Arm Rest
Fig. 6 Attaching Screws At Rear Of Center Console
With Arm Rest
Fig. 7 Attaching Screws At Front Of Center Console
8M - 4 RESTRAINT SYSTEMPL
SERVICE PROCEDURES (Continued)

INSTALLATION
(1) Connect ACM connector and ensure that the
connector locking tab is engaged.
CAUTION: USE SUPPLIED SCREWS ONLY
(2) Position ACM (arrow pointing forward) in the
console floor bracket, attach the nuts and tighten to
11 to 14 N´m (105 to 125 in. lbs.) torque.NOTE: The park brake lever can be in any position
when releasing the auto adjuster. To ease installa-
tion of center console, it is advisable to pull park
brake lever handle all the way up before removing
lockout pin.
(3) Place park brake lever on console bracket.
Install and securely tighten the 2 attaching nuts.
(4) Install both rear park brake cables into equal-
izer on park brake lever output cable (Fig. 14) and
(Fig. 15).
(5) Ensure that park brake cable is correctly
installed and aligned with cable track on park brake
lever.
(6) Pull park brake lever handle all the way up.
(7) Firmly grasp park brake lever locking pin and
quickly remove it from the park brake lever mecha-
nism (Fig. 16) This will allow the park brake lever
mechanism to correctly adjust the park brake cables.
(8) Connect electrical connector for brake warning
lamp onto terminal on park brake lever assembly
(Fig. 17).
(9) Cycle park brake lever once to position park
brake cables. Then return the park brake lever its
released position. Check the rear wheels of the vehi-
cle. They should rotate freely without dragging.
(10) Raise park brake lever to its fully engaged
position. This is necessary to allow installation of the
center console.
(11) Install center console assembly.
(12) Install the four center console assembly
attaching screws (Fig. 18), (Fig. 19) and (Fig. 20).
(13) Replace shifter knob and fastener.
(14) Do not connect battery negative cable. Refer
to Diagnosis and Testing for Airbag System Test for
the proper procedures.
Fig. 12 Airbag Control Module
Fig. 13 ACM Connector
Fig. 14 Park Brake Cables Properly Installed In
Equalizer
8M - 6 RESTRAINT SYSTEMPL
REMOVAL AND INSTALLATION (Continued)

CLOCKSPRING
REMOVAL
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY. ALLOW SYSTEM CAPACITOR
TO DISCHARGE FOR 2 MINUTES BEFORE REMOV-
ING ANY AIRBAG COMPONENTS.
(1) Place the front road wheels in the straight
ahead position then:
²Rotate the steering wheel half turn (180
degrees) to the right (clockwise)
²Lock column with ignition lock cylinder.
(2) Disconnect and isolate the battery negative
cable.
(3) Wait two minutes for the reserve capacitor to
discharge before removing non-deployed module.
(4) Remove speed control switch mounting screws,
switches and disconnect the wire connectors or
remove covers.
(5) Remove the Driver Airbag Module attaching
bolts from under the speed control switches or covers.
(6) Lift module and disconnect the airbag and horn
wire connectors.
(7) Remove the steering wheel, refer to Steering
Wheel removal procedures.
(8) Remove upper and lower steering column
shrouds to gain access to clockspring wiring.
(9) Disconnect the 2-way and 4-way connectors
between the clockspring and the instrument panel
wiring harness at the base of the clockspring (Fig.
21).
(10) Unlatch and remove clockspring assembly
from steering shaft. The clockspring cannot be
repaired, and must be replaced if faulty.
(11) Rotate clockspring rotor a half turn (180
degrees) to the left (counter clockwise).
(12) Lock the clockspring rotor in the center posi-
tion as follows: Insert a paper clip wire through the
hole in the rotor at the 10 O'clock position and bend
to prevent it from falling out.
INSTALLATION
(1) Confirm that:
²The steering wheel position is a half turn (180
degrees) to the right (clockwise)
²The column is locked with the ignition cylinder
lock.
²Check that the turn signal stalk is in the neu-
tral position²When reusing the clockspring, remove locking
wire and rotate clockspring rotor one half turn (180
degrees) to the right (clockwise). Locate the clock-
spring on the steering shaft and push down on the
rotor until the clockspring is fully seated on the
steering column.
²When installing a new clockspring remove gre-
nade pin and rotate clockspring rotor one half turn
(180 degrees) to the right (clockwise). Locate clock-
spring on the steering shaft and push down on the
rotor until the clockspring is fullly seated on the
steering wheel.
(2) Connect the clockspring to the instrument
panel harness, ensure wiring is properly routed.
Then check that the connectors, locking tabs are
properly engaged and the halo lamp wire is in posi-
tion.
(3) Install steering column shrouds. Be sure all
wires are inside of shrouds.
(4) Install steering wheel ensuring the flats on hub
align with the clockspring. Pull the horn, airbag and
speed control leads through the larger slot. Ensure
leads do not get pinched under the steering wheel.
(5) Route speed control wires under and behind
the airbag module mounting tabs.
(6) Connect the horn lead wire and the airbag lead
wire to the airbag module.
(7) Install the airbag module and tighten bolts to
12 to 14 N´m (105 to 125 in. lbs.) torque.
(8) Connect the speed control wires to the switches
and install switches. Tighten screws to 2 N´m (20 in.
lbs.) torque.
(9) Do not connect the battery negative cable.
Refer to Diagnosis and Testing for Airbag System
Test procedures.
Fig. 21 Clockspring
8M - 8 RESTRAINT SYSTEMPL
REMOVAL AND INSTALLATION (Continued)

DRIVER AIRBAG MODULE
REMOVAL
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY. ALLOW SYSTEM CAPACITOR
TO DISCHARGE FOR 2 MINUTES BEFORE REMOV-
ING ANY AIRBAG COMPONENTS.
When removing a deployed module, rubber gloves,
eye protection and long sleeved shirt should be worn,
as there may be deposits on the surface which could
irritate the skin and eyes.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove speed control switches or covers from
steering wheel armature and disconnect the wires.
(3) Remove two bolts attaching Driver Airbag Mod-
ule from the sides of steering wheel (Fig. 22).
(4) Lift module and disconnect airbag squib wire
connector and horn wire.
(5) Remove Driver Airbag Module.
(6) When replacing a deployed driver airbag mod-
ule, the clockspring must also be replaced. Refer to
Clockspring Removal and Installation for proper pro-
cedure.
INSTALLATION
For installation, reverse the above procedures.
(1) Connect the squib wire to the module. Make
airbag connection by pressing straight in on the con-
nector. The connector should be fully seated feel for
positive snap to assure positive connection.
(2) Connect the horn wire.
(3) Install two bolts and tighten to 10 to 11 N´m
(90 to 100 in. lbs.) torque.
(4) Install non-speed control covers to the steering
wheel armature or connect the wire connectors to the
speed control switches and install switches. Tighten
fastener to 2 N´m (20 in. lbs.) TORQUE.
(5) Do not connect battery negative cable. Refer to
Diagnosis and Testing for Airbag System Test proce-
dures.
PASSENGER AIRBAG MODULE
NON-DEPLOYED MODULE
REMOVAL
When removing a module for any reason other
than DEPLOYMENT.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove instrument panel top cover (Fig. 23).
(3) Remove instrument panel right trim bezel.
(4) Open glove box and push the sides inward
allowing the door bumper to pass and box to open.
(5) Remove the four trim screws which attach the
Passenger Airbag Module to the top instrument
panel (Fig. 24).
(6) Remove two module attaching nuts from the
support structure.
(7) Lift module up until the wire connector is vis-
ible and disconnect the 4-way wire connector from
module. Unlock the red locking tab and compress
lock to release the connector (Fig. 25).
INSTALLATION
For installation, reverse the above procedures.
Ensure that the red locking tab is in the lock position
after installing the connector. Tighten trim screws to
2 N´m (20 in. lbs.) torque. Tighten the module nuts to
22 to 34 N´m (200 to 300 in. lbs.) torque. Do not con-
nect battery negative cable. Refer to Diagnosis and
Testing for Airbag System Test procedures.
Fig. 22 Driver Airbag Module
PLRESTRAINT SYSTEM 8M - 9
REMOVAL AND INSTALLATION (Continued)

DEPLOYED MODULE
REMOVAL
When removing a deployed module, rubber gloves,
eye protection, and a long-sleeved shirt should beworn, as there may be deposits on the surface which
could irritate the skin and eyes.
(1) Disconnect and isolate the battery negative
cable.
(2) Roll/fold airbag towards instrument panel.
(3) Close door over folded airbag and tape door
closed.
(4) Remove instrument panel top cover (Fig. 23).
(5) Remove instrument panel right trim panel.
(6) Open glove box and push the sides inward
allowing the door bumper to pass and box to open.
(7) Remove the four trim screws which attach the
module to the top instrument panel (Fig. 24).
(8) Remove two module attaching nuts from the
support structure.
(9) Lift module up until the wire connector is visi-
ble and disconnect the 4-way wire connector from
module. Unlock the red locking tab and compress
lock to release the connector.
INSTALLATION
For installation, reverse the above procedures.
Ensure that the red locking tab is in the lock position
after installing the connector. Tighten trim screws to
2 N´m (20 in. lbs.) torque. Tighten the module nuts to
22 to 34 N´m (200 to 300 in. lbs.) torque. Do not con-
nect battery negative cable. Refer to Diagnosis and
Testing for Airbag System Test procedures.
STEERING WHEEL
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
ALLOW SYSTEM CAPACITOR TO DISCHARGE
FOR 2 MINUTES BEFORE REMOVING ANY AIRBAG
COMPONENTS.
REMOVAL
(1) Adjust the steering wheel so that the tires are
in the straight ahead position then:
²Rotate the steering wheel half turn (180
degrees) to the right (clockwise)
²Lock column with the ignition cylinder lock
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the speed control switches and discon-
nect the wire connectors or covers.
(4) Remove the Driver Airbag Module attaching
bolts from the back of steering wheel.
Fig. 23 Instrument Panel
Fig. 24 Passenger Airbag Module
Fig. 25 Airbag Module Connector
8M - 10 RESTRAINT SYSTEMPL
REMOVAL AND INSTALLATION (Continued)

(5) Lift module and disconnect the airbag and horn
wire connectors.
(6) Remove steering wheel retaining nut.
(7) Remove the steering wheel with a steering
wheel puller. While removing the steering wheel take
care to feed the wires gently through the holes in the
clockspring armature.
INSTALLATION
(1) Confirm that:
²The steering wheel position is a half turn (180
degrees) to the right (clockwise)
²The column is locked with the ignition cylinder
lock.
²Check that the turn signal stalk is in the neu-
tral position
(2) Install the steering wheel ensuring the flats on
hub align with the clockspring. Pull the horn lead,
airbag and speed control leads through the larger
slot. Ensure leads do not get pinched under the steer-
ing wheel.
(3) Install the steering wheel retaining nut, and
tighten it to 61 N´m (45 ft. lbs.) torque.
(4) Install the airbag module. Refer to Driver Air-
bag Module Removal and Installation for proper pro-
cedures.
(5) Do not connect the battery negative cable.
Refer to Diagnosis and Testing for Airbag System
Test procedures.
ADJUSTMENTS
CLOCKSPRING CENTERING PROCEDURE
If the rotating tape within the clockspring is not
positioned properly with the steering wheel and the
front wheels, the clockspring may fail during use.
The following procedure MUST BE USED to center
the clockspring if:²The clockspring is not known to be properly
positioned
²The front wheels were moved
²The steering wheel was moved from the half
turn (180 degrees) to the right (clockwise) position.
WARNING: DISCONNECT AND ISOLATE THE BAT-
TERY NEGATIVE (GROUND) CABLE BEFORE
BEGINNING ANY AIRBAG SYSTEM COMPONENT
REMOVAL OR INSTALLATION PROCEDURE. THIS
WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO
DISCONNECT BATTERY COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
ALLOW SYSTEM CAPACITOR TO DISCHARGE
FOR 2 MINUTES BEFORE REMOVING ANY AIRBAG
COMPONENTS.
(1) Remove clockspring, refer to Clockspring
Removal.
(2) Rotate the clockspring rotor in the CLOCK-
WISE DIRECTION to the end of travel. Do not apply
excessive torque.
(3) From the end of travel, rotate the rotor two full
turns and a half in the counterclockwise direction.
The horn wire and the squib wire should end up at
the bottom. If not, rotate the rotor counter clockwise
until the wires are properly orientated, but not more
than half turn (180 degrees). Engage clockspring
locking mechanism.
(4) For installation, refer to Clockspring Installa-
tion
(5) Do not connect battery negative cable. Refer to
Diagnosis and Testing for Airbag System Test
procedures.
PLRESTRAINT SYSTEM 8M - 11
REMOVAL AND INSTALLATION (Continued)

ELECTRICALLY HEATED SYSTEMS
CONTENTS
page page
DESCRIPTION AND OPERATION
INTRODUCTION......................... 1
REAR WINDOW DEFOGGER SWITCH........ 1
DIAGNOSIS AND TESTING
DEFOGGER SYSTEM..................... 1GRID LINES............................ 2
REAR WINDOW DEFOGGER SWITCH........ 2
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR......... 3
DESCRIPTION AND OPERATION
INTRODUCTION
For proper operation of the Rear Window Defogger
system refer to the Owner's Manual.
The system consists of a rear glass with two verti-
cal bus bars and a series of electrically connected
grid lines fired on the inside surface. A control switch
and a timer relay combined into a single assembly is
used on all models (Fig. 1).
Circuit protection is provided by a maxi fuse,
located in the Power Distribution Center, for the
heated grid circuit and by a fuse for the relay control
circuit.
When the switch is turned to the ON position, cur-
rent is directed to the rear defogger grid lines. The
heated grid lines heat the rear glass to clear the sur-
face of fog or frost.
CAUTION: Grid lines can be damaged or scraped
off with sharp instruments, care should be taken in
cleaning glass or removing foreign materials,
decals or stickers. Normal glass cleaning solvents
or hot water used with rags or toweling is recom-
mended.
REAR WINDOW DEFOGGER SWITCH
The rear window defogger switch is a control
switch and timer relay integrated into a single panel
mounted assembly. Actuating the switch energizes
the circuit which allows current to flow through the
grid lines. Upon initial actuation for approximately
eight to ten minutes, or until either the switch or
ignition is turned off. An indicating lamp illuminates
a lens inlaid in the control switch.
DIAGNOSIS AND TESTING
DEFOGGER SYSTEM
Electrically heated rear window defogger operation
can be checked in vehicle in the following manner:
(1) Turn ignition switch to the ON position.
(2) Connect an ammeter in series with the battery.
Push the defogger control switch to the ON position.
A distinct increase in amperage draw should be
noted.
(3) The rear window defogger operation can be
checked by feeling the glass. A distinct difference in
temperature between the grid lines and adjacent
clear glass can be detected in three to four minutes
of operation.
(4) Using a DC voltmeter, connect negative lead to
Point B, and the positive lead to Point A (Fig. 2). The
voltmeter should read 10-14 volts.
(5) Step 2, Step 3 or Step 4 above will confirm
system operation. Indicator light illumination means
that there is power available at the output of the
relay only, and does not necessarily verify system
operation.
Fig. 1 Rear Window Defogger
PLELECTRICALLY HEATED SYSTEMS 8N - 1

Instrument Panel and Systems for removal proce-
dures.
(2) Turn the ignition switch ON.
(3) Using a voltmeter, check for battery voltage at
Pin 3 and Pin 4 (Fig. 3), (Fig. 4).
(a) If OK, go to Step 4.
(b) If NOT OK, check fuse 8 in fuse block and
the 30 Amp maxi fuse in the Power Distribution
Center (PDC). If fuses are OK, check wiring cir-
cuit. Refer to Group 8W, Wiring Diagrams.
(4) Check Pin 5, with switch in the ON position
there should be battery voltage and no voltage in the
OFF position.
(a) If OK, go to Step 5.
(b) If NOT OK, no voltage in the ON position or
voltage in the OFF position. Replace the switch/re-
lay module.
(5) Press switch to ON position. The indicator
lamp should come on and remain on for approxi-
mately 10 minutes. If the indicator lamp fails to light
or no voltage is present for approximately 10 min-
utes. Replace Rear Window Defogger Switch.
(6) To bench test relay:
(a) Using a jumper wire connect a 12 volt batter
supply, apply voltage to Pin 3 and 4. Ground Pin 2.
(b) Follow the above procedures except Step 2
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR
WARNING: REPAIR KIT MAY CAUSE SKIN OR EYE
IRRITATION. CONTAINS EPOXY RESIN AND AMINE
TYPE HARDENER, HARMFUL IF SWALLOWED.
AVOID CONTACT WITH SKIN AND EYES. FOR SKIN,
WASH AFFECTED AREAS WITH SOAP AND WATER.
DO NOT TAKE INTERNALLY. IF TAKEN INTER-
NALLY, INDUCE VOMITING; CALL A PHYSICIAN
IMMEDIATELY. IF IN CONTACT WITH EYES, FLUSH
WITH PLENTY OF WATER. USE WITH ADEQUATEVENTILATION. DO NOT USE NEAR FIRE OR FLAME.
CONTENTS CONTAIN 3 PERCENT FLAMMABLE
SOLVENTS.
KEEP OUT OF REACH OF CHILDREN.
The repair of the grid lines or the terminal is pos-
sible using the MopartRepair Package or equiva-
lent.
(1) Mask repair area so conductive epoxy can be
extended onto the line or the bus bar (Fig. 5).
(2) Follow instructions in repair kit for preparing
damaged area.
(3) Remove package separator clamp and mix plas-
tic conductive epoxy thoroughly. Fold in half and cut
center corner to dispense epoxy.
(4) For grid line, mark off area to be repaired with
masking tape or a template (Fig. 5).
(5) Apply conductive epoxy through slit in masking
tape. Overlap both ends of the break by 19 mm (3/4
inch).
(6) For a terminal or pigtail replacement, mask
adjacent areas so epoxy can be extended onto line as
well as bus bar. Apply a thin layer of epoxy to area
where terminal was fastened and to adjacent line.
(7) Apply a thin layer of conductive epoxy on ter-
minal and place terminal on desired location. To pre-
vent terminal from moving while the epoxy is curing,
it must be wedged or clamped.
(8) Carefully remove masking tape from grid line.
CAUTION: Do not allow the glass surface to
exceed 204ÉC (400ÉF), glass may fracture.
(9) Allow epoxy to cure 24 hours at room tempera-
ture or use heat gun with a 260Éto 371ÉC (500É to
700ÉF) range for 15 minutes. Hold gun approximately
254 mm (10 inches) from repaired area.
(10) After conductive epoxy is properly cured
remove wedge from terminal and check out operation
of rear window defogger. Do not attach connectors
until curing is complete.
Fig. 4 Rear Window Defogger Switch
Fig. 5 Grid Line Repair
PLELECTRICALLY HEATED SYSTEMS 8N - 3
DIAGNOSIS AND TESTING (Continued)