service CHEVROLET DYNASTY 1993 Service Manual

EXTERIOR LAMPSÐAY-BODY INDEX
page page
Center High Mounted Stop Lamp ............ 24
Center High Mounted Stop Lamp Bulb (CHMSL) . 24
Cornering Lamp or BulbÐAY/C-P-Body ........ 24
Front Side Marker BulbÐAY/C-P-Body ........ 23
Front Side Marker LampÐAY/C-P-Body ....... 23
General Information ....................... 22
Headlamp Diagnosis ...................... 22 Headlamps
............................. 22
License Plate Lamp or BulbÐAY/C-P-Body ..... 24
Park, Turn Signal Lamp or BulbÐAY/C-P-Body . . 22
Sealed Beam ........................... 22
Tail, Stop, Turn Signal, Side Marker and Back-Up Lamp or BulbÐAY/C-P-Body .............. 24
GENERAL INFORMATION
To service exterior lamps on AY/C-S-Body, refer to
procedures covered in Exterior LampsÐAC-Body sec-
tion. AC/C-S-Body uses the same lamps as AY/C-S-
Body.
HEADLAMPS
Conventional and halogen sealed beams are inter-
changeable, It is not recommended that they be
mixed. The lens, filament and reflector of sealed
beams are molded into one unit.
HEADLAMP DIAGNOSIS
For headlamp diagnosis, refer to the headlamp di-
agnosis chart at the beginning of this Group. Refer to
Wiring Diagrams manual for circuit and component
locations.
SEALED BEAM
REMOVAL
(1) Turn the headlight switch ON.
(2) Open the hood and locate the power distribu-
tion center forward of the left front suspension tower
(Fig. 1). Remove the cover. (3) Remove the headlamp close relay (Fig. 2) to
prevent the headlamp doors from closing. (4) Turn the headlight switch OFF.
(5) Remove screws from headlamp bezel and re-
move bezel, if equipped. Do not disturb the headlamp adjusting screws.
(6) Remove screws from interior retaining ring
(Fig. 3), and remove ring. (7) Separate sealed beam from seat and disconnect
wire connector.
INSTALLATION
Reverse the preceding operation.
PARK, TURN SIGNAL LAMP OR BULBÐAY/C-P-
BODY
REMOVAL
(1) Open the headlamp doors. (2) Remove push-in fasteners holding lower park
and turn signal lamp shield to grille opening panel
(Fig. 4). (3) Remove screws holding park and turn signal
lamp grille opening panel (Fig. 5). (4) Remove sockets from lamp and pull bulbs from
sockets if bulbs replacement is required (Fig. 6).
Fig. 1 Power Distribution Center
Fig. 2 Headlamp Close Relay
8L - 22 LAMPS Ä

HEADLAMP TIME DELAY SYSTEM
SYSTEM OPERATION
The Body Controller controls the Headlamp Time
Delay system, if equipped. OPERATION:
By turning off the ignition switch first then off the
headlamp switch, the Body Controller will allow the
headlamps to remain ON for 60 seconds before they
automatically turn off and the headlamp doors close.
DIAGNOSIS
Refer to the Pre-diagnostic Test section of the ap-
propriate Body Diagnostic Procedures service man-
ual.
Fig. 3 Lamp Outage ModuleÐAC and AY-BodyFig. 4 Daytime Running Lamp ModuleÐCanada Only
8L - 26 LAMPS Ä

CONCEALED HEADLAMPS INDEX
page page
Concealed Headlamp MotorÐAC-Body ........ 29
Diagnostic Procedures ..................... 27
General Information ....................... 27 Headlamp DoorÐAC-Body
................. 29
Headlamp DoorÐAY Body ................. 29
Headlamp Drive MotorÐAY Body ............ 30
GENERAL INFORMATION
For proper operation of the Concealed Headlamp
System, refer to the Owner's Manual provided with
the vehicle.
The Concealed Headlamps are controlled by the Body
Controller (Fig. 1). Refer to Group 8E, Instrument
Panel for service procedures. The Body Controller re-
ceives input information from the ignition switch, head-
lamp switch, and the headlamp dimmer switch. The Body Controller also controls the headlamp doors
when the Passing Lights (manually flashing bright
lights) are used. With the headlamp switch turned off,
actuating the headlamp dimmer switch will signal the
Body Controller to open the headlamp doors. The oper-
ator then has two seconds to flash the bright lights be-
fore the Body Controller closes the headlamp doors.
Holding the headlamp dimmer switch in the engaged
position will signal the Body Controller to keep the
headlamp doors open until the dimmer switch is re-
leased. Actuating the headlamp dimmer switch with the
parking lamps ON signals the Body Controller to open
the headlamp doors and keep them open until the head-
lamp switch is turned off.
AY and AC vehicles use a single motor, centrally
located behind the radiator grille, and linked to the
headlamp doors by a torsion bar. Refer to Service
Procedures for more information. The headlamp door drive motors are equipped with
a manual override hand wheel to open or close the
headlamp doors if a failure should occur or servicing
is required. Access to the handwheel can be gained
through a flap covered hole in the sight shield be-
hind the bumper fascia, and under the hood. Several
revolutions of the handwheel may be required to
move the headlamp doors.
DIAGNOSTIC PROCEDURES
Before diagnosing a problem with the headlamp
doors, check for possible collision damage, binding,
improperly installed assemblies, or freezing weather
conditions. When diagnosing an electrical problem, refer to:
² The Concealed Headlamps Electrical Diagnosis
chart in this section.
² The Wiring Diagrams Manual.
² The Headlamp Doors System section of the appro-
priate Body Diagnostic Procedures Manual.
PROBLEM
One headlamp door is inoperative when the head-
lamp switch is ON and the ignition switch is in the
RUN position. The other headlamp door operates
normally.
AC OR AY-VEHICLE BODY CHECK:
² Headlamp door pivot and crank for seizure.
² Headlamp torsion bar sleeve or clip for excessive
wear or breakage.
² Headlamp door crank for missing or broken screw.
² Headlamp torsion bar for disengagement or break-
age.
PROBLEM
Headlamp door operates erratically.
CHECK:
² For freezing weather conditions.
² For excessive effort to move headlamp door pivots.
² For corrosion or improperly aligned components.
² For stripped motor reduction gears.
² For defective body controller. Refer to the Con-
cealed Headlamp Electrical Diagnosis chart in this
section. Also refer to the Wiring Diagrams Manual
and Body Diagnostic Procedures Manual.
Fig. 1 Body Controller
Ä LAMPS 8L - 27

ILLUMINATED ENTRY SYSTEM INDEX
page page
Body Controller ComputerÐAC, AG, AJ and AY-Body ............................. 34
Diagnostic ProceduresÐAA-Body ............ 33 Diagnostic ProceduresÐAC, AG, AJ and AY-Body . 33
General Information ....................... 33
Illuminated Entry ModuleÐAA-Body ........... 34
GENERAL INFORMATION
AA-BODY
The Illuminated Entry System (on AA Body) actu-
ates the interior courtesy and/or dome lamps (except
for the illuminated ignition switch) by lifting either
front door exterior handle. Lamp illumination is terminated 35 seconds ( 68
seconds later when battery voltage is normal), or by
turning the ignition switch to the run position,
whichever occurs first. When testing the system, all
vehicle doors must be closed to prevent the door jam
switches from activating the courtesy/dome lamps. Front door handle switches (Fig. 1), and the Illumi-
nated Entry Module (located behind and above the
glove box (Fig. 2) are used to control the system.
Depending on vehicle options, as many as six dif-
ferent electrical components/relays are located above
the glove box. The Illuminated Entry Module will be
the one mounted the closest to the outside of the in-
strument panel. The Module bracket is also used to
commonly mount the Power Door Lock Inhibitor Re-
lay, if equipped. Service procedures for door related components can
be found in Group 23, Body.
AC, AG, AJ OR AY BODY
The Illuminated Entry System (AC, AG, AJ or AY
Body) actuates the interior courtesy and/or dome lamps (except illuminated ignition switch) by lifting
either front door exterior handle. Activation can also
be accomplished with the remote keyless entry sys-
tems hand held module, if equipped. Lamp illumination is terminated 30 seconds ( 62
seconds) later, or by turning the ignition switch to
the run position, whichever occurs first. When test-
ing this system, all vehicle doors must be closed to
prevent the operation of the courtesy/dome lamps. Front door handle switches (Fig. 1), and the Body
Controller (Fig . 3 ) are used to control the system.
Service procedures for door related components can
be found in Group 23, Body.
DIAGNOSTIC PROCEDURESÐAA-BODY
For diagnostics and wiring schematics, refer to:
² The Illuminated Entry DiagnosisÐAA-Body chart
in this section.
² The Wiring Diagrams Manual.
² Fig. 4 and 5.
DIAGNOSTIC PROCEDURESÐAC, AG, AJ AND
AY-BODY
For diagnostics and wiring schematics, refer to:
Fig. 1 Illuminated Entry Door SwitchesÐTypical
Fig. 2 Illuminated Entry ModuleÐAA Body
Ä LAMPS 8L - 33

BULB APPLICATION TABLE
GENERAL INFORMATION
The following Bulb Application Table lists the
lamp title in bold print on the left side of the column.
The vehicle family and model codes are listed under
the lamp title. The trade number or part number is
listed on the right side of the column.
CAUTION: Do not use bulbs that have a higher can-
dle power than the bulb listed in the Bulb Applica-
tion Table. Damage to lamp can result. Do not touch halogen bulbs with fingers or other
possibly oily surfaces. Bulb life will be reduced .
EXTERIOR LAMPS
Back-up
AY/C-P ....................................................................921
AA/D-A, AC/C, AY/C-S .........................................922
AA/P-P-C, AJ/C, AP/D-P.....................................1156
AA/P-H, AC/D, AG/V, AY/C-P ...........................3157
Center High Mounted Stop
AA ...........................................................................921
AC, AG, AJ, AY, AP ............................................922
Cornering
AA, AY .................................................................3157
Fog
AA ......................................................................GE880
AP/D...................................................................GE893
AG, AP/P .................................................................H3
Front Side Marker
AA/P-H, AA/D, AC, AJ, AP, AY-S......................168
AA/P-PX, AA/C, AY-P ....................................194NA
Front Side Marker/Turn Sig.
AG....................................................................3157NA
Headlamp/Aero
AG, AJ-High Beam .............................................9005
AG, AJ-Low beam ...............................................9006
AA, AC/D, AP ......................................................9004
Headlamp/Sealed Low Beam
AC/C, AY ...........................................................H4703
Headlamp/Sealed High Beam
AC/C, AY ...........................................................H4701
License Plate
AA, AC/C, AG, AJ, AP, AY/C-S ..........................168
AC/D, AY/C-P.........................................................194
Park/Turn Signal
AC/C-D, AY/C-P, AY/C-S ..............................3157NA
AA/P-X-C, AC/C, AG, AY/C-P, AY/C-S ........194NA
AA/P-H-D ..............................................................3157
AJ, AP...................................................................2057
Rear Side Marker
AC/C, AG, AJ, AY/C-S-P ......................................168
AA/P-C-D, AC/D, AP, AY/CS (opt.) .....................916
Tail
AG ...........................................................................168
AJ, AY/C-P .............................................................916 Tail Reflector
AY ...........................................................................168
Tail/Stop/Turn Signal
AP ..........................................................................2057
AG, AC..................................................................3057
AA, AJ, AY ..........................................................3157
INTERIOR LAMPS
Some components have lamps that can only be ser-
viced by a Authorized Service Center (ASC) after the
component is removed from the vehicle. Contact local
dealer for location of nearest ASC. Chrysler vehicles
are equipped with a mechanical instrument cluster
(MIC) or an optional electronic instrument cluster
(EIC). If a bulb is unique to the MIC or EIC the ac-
ronym will follow the title.
INDICATOR LAMPS
Service procedures for the indicator lamps in the
instrument cluster are located in Group 8E, Instru-
ment Panel and Gauges. Air Bag (MIC)
AC, AY....................................................................103
AA, AG, AJ, AP ...............................................PC194
Antilock (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
Antilock (EIC)
AA, AY ..............................................................PC194
AJ ............................................................................103
Brake (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
Brake (EIC)
AA, AY ..............................................................PC194
AJ ............................................................................103
Check Engine (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
Check Engine (EIC)
AA, AY ..............................................................PC194
AJ ............................................................................103
Check Gauges
All .......................................................................PC194
Door Open
AA, AC, AY .............................................................74
AP ............................................................................161
AG, AJ ............................................................4437661
Fog Lamp (MIC)
AG ......................................................................PC194
High Beam (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
High Beam (EIC)
AA, AY ..............................................................PC194
Lamp Outage
8L - 38 LAMPS Ä

AA .............................................................................74
Low Fuel
AA ...........................................................................103
AP ............................................................................161
AC, AY...............................................................PC194
AG, AJ ............................................................5269245
Low Washer Fluid
AA, AC, AY .............................................................74
AP ............................................................................161
AG, AJ ............................................................4437661
Oil Pressure
All .......................................................................PC194
Trunk Open
AA, AC, AY .............................................................74
AP ............................................................................161
AG, AJ ............................................................4437661
Theft Alarm Set
AC, AY....................................................................168
AG, AJ ............................................................4437661
Turn Signal (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
Turn Signal (EIC)
AA, AY ..............................................................PC194
Seat Belt (MIC)
AA ...........................................................................103
AC, AG, AJ, AP, AY .......................................PC194
Seat Belt (EIC)
AA, AY ..............................................................PC194
AJ ............................................................................103
DIMMER CONTROLLED LAMPS
Service procedures for most of the lamps in the in-
strument panel, Instrument cluster and switches are
located in Group 8E, Instrument Panel and Gauges. A/C Heater Control
All ..............................................................................37
Automatic Temperature Control
All ....................................................................4437661
Column Gearshift Indicator
AA, AC, AY ...........................................................161
Console Gearshift Indicator
AP ............................................................................194
AA, AG, AJ ............................................................161
Fog Lamp Switch Symbol
AG ......................................................................PC194
Headlamp Dimmer Switch
AG, AJ ......................................................................37
Headlamp Switch Symbol
AC, AY....................................................................161
AG, AJ ......................................................................37
Heater Control
All ............................................................................158
EVIC
AJ...........................................................................ASC
Instrument Cluster (MIC)
All .......................................................................PC194
Instrument Cluster (EIC) AA, AY .....................................................................74
Message Center
AA, AC, AY .............................................................74
AP ............................................................................161
Navigator/Travel Companion
AA, AJ ......................................................................74
Radio
All ..........................................................................ASC
Rear Defogger Switch
Not Serviceable, Replace Switch
Rear Wiper Switch
AG .............................................................................37
Theft Alarm
AC, AY....................................................................161
Top Lift Switch
AJ ....................................................................5268053
Travel Computer
All ..........................................................................ASC
Turbo Gauge
AP ............................................................................161
Windshield Wiper Switch
AG, AJ ......................................................................37
NON-DIMMING LAMPS
Service procedures for most of the lamps in the fol-
lowing list can be found in Group 23, Body. Some
components have lamps that can only be serviced by
a Authorized Service Center (ASC) after the compo-
nent is removed from the vehicle. Contact local
dealer for location of nearest ASC. Ash Receiver
AA .............................................................................74
AC, AP, AY ............................................................161
AG, AJ ......................................................................37
Center Console Rear
AJ ............................................................................906
Cigar Lighter
AA, AP ....................................................................161
Courtesy
AA, AC, AY-S .....................................................214-2
AJ ............................................................................906
AY-P.....................................................................212-2
Dome
ALL ......................................................................211-2
Engine Compartment
All ............................................................................105
Glove Compartment
All ..........................................................................1891
Ignition Lock
All ..............................................................................37
Inside Rear View Mirror
AJ ............................................................................168
Overhead Console
AA ...........................................................................912
AC, AY....................................................................906
AG, AJ, AP .........................................................212-2
Reading Lamp Front
All ............................................................................906
Ä LAMPS 8L - 39

RESTRAINT SYSTEMS
CONTENTS
page page
AIR BAG MODULE ....................... 4
AIR BAG SERVICE AND TEST PROCEDURES . 1
AIR BAG SYSTEM CHECK ................. 3
AIR BAG SYSTEM DIAGNOSTIC MODULE (ASDM) .............................. 5
CLOCKSPRING .......................... 6
CLOCKSPRING CENTERING PROCEDURE .... 6 GENERAL INFORMATION
.................. 1
LEFT FRONT IMPACT SENSOR ............. 4
RIGHT FRONT IMPACT SENSOR ........... 5
SCHEDULED MAINTENANCE INSPECTION .... 3
STEERING COLUMN SWITCHES ............ 7
STEERING WHEEL ....................... 7
AIR BAG SERVICE AND TEST PROCEDURES
WARNING: THIS SYSTEM IS A SENSITIVE, COM-
PLEX ELECTRO-MECHANICAL UNIT. BEFORE AT-
TEMPTING TO DIAGNOSE, REMOVE OR INSTALL
THE AIR BAG SYSTEM COMPONENTS, YOU MUST
FIRST DISCONNECT AND ISOLATE THE NEGATIVE
(GROUND) BATTERY CABLE. FAILURE TO DO SO
COULD RESULT IN ACCIDENTAL DEPLOYMENT
AND POSSIBLE PERSONAL INJURY. WHEN AN UNDEPLOYED AIR BAG ASSEMBLY
IS TO BE REMOVED FROM THE STEERING
WHEEL, DISCONNECT BATTERY GROUND CA-
BLE AND ISOLATE. ALLOW SYSTEM CAPACI-
TOR TO DISCHARGE FOR TWO MINUTES THEN
BEGIN AIR BAG SYSTEM COMPONENT RE-
MOVAL. Vehicles equipped with a Air Bag System must be
inspected every three years or 30,000 miles / 48,000
Km. To inspect system use Passive Restraint System
Diagnostic Procedures Manual. If the Air Bag Module Assembly is defective and
non-deployed, refer to Chrysler Motors current re-
turn list for proper handling procedures.
WARNING: REPLACE AIR BAG SYSTEM COMPO-
NENTS WITH CHRYSLER MOPAR TSPECIFIED RE-
PLACEMENT PARTS. SUBSTITUTE PARTS MAY
VISUALLY APPEAR INTERCHANGEABLE, BUT IN-
TERNAL DIFFERENCES MAY RESULT IN INFERIOR
OCCUPANT PROTECTION.
THE FASTENERS, SCREWS, AND BOLTS, ORIG-
INALLY USED FOR THE AIR BAG COMPO-
NENTS, HAVE SPECIAL COATINGS AND ARE
SPECIFICALLY DESIGNED FOR THE AIR BAG
SYSTEM. THEY MUST NEVER BE REPLACED
WITH ANY SUBSTITUTES. ANYTIME A NEW
FASTENER IS NEEDED, REPLACE WITH THE CORRECT FASTENERS PROVIDED IN THE SER-
VICE PACKAGE OR FASTENERS LISTED IN THE
PARTS BOOKS.
GENERAL INFORMATION
AIR BAG MODULE
The air bag module is the most visible part of the
system (Fig 1). It contains the air bag cushion and
its supporting components. The air bag module con-
tains a housing to which the cushion and inflator are
attached and sealed.
The inflator assembly is mounted to the back of the
module housing. When supplied with the proper elec-
trical signal the inflator assembly will produce a gas
and discharges it directly into the cushion. A protec-
tive cover is fitted to the front of the air bag module
and forms a decorative cover in the center of the
steering wheel. The air bag module is mounted di-
rectly to the steering wheel.
Fig. 1 Air Bag Passive Restraint System
Ä RESTRAINT SYSTEMS 8M - 1

FRONT IMPACT SENSORS
The driver air bag system is a safety device de-
signed to reduce the risk of fatality or serious injury,
caused by a frontal impact of the vehicle. The impact sensors provide verification of the di-
rection and severity of the impact. Three impact sen-
sors are used. One is called a safing sensor. It is
located inside the diagnostic module which is
mounted on the floor pan, just forward of the center
console. The other two sensors are mounted on the
upper crossmember of the radiator closure panel on
the left and right side of the vehicle under the hood. The impact sensors are threshold sensitive switches
that complete an electrical circuit when an impact
provides a sufficient G force to close the switch. The
sensors are calibrated for the specific vehicle and re-
act to the severity and direction of the impact.
CLOCKSPRING
The clockspring is mounted on the steering column
behind the steering wheel, and is used to maintain a
continuous electrical circuit between the wiring har-
ness and the driver's air bag module. This assembly
consists of a flat ribbon-like electrically conductive
tape which winds and unwinds with the steering
wheel rotation.
DIAGNOSTIC MODULE
The Air Bag System Diagnostic Module (ASDM)
contains the safing sensor and energy reserve capac-
itor. The ASDM monitors the system to determine
the system readiness. The ASDM will store sufficient
energy to deploy the air bag for only two minutes af-
ter the battery is disconnected. If both front impact
sensors are open the air bag could be deployed up to
9.5 minutes after the battery is disconnected. The
ASDM contains on-board diagnostics, and will illumi-
nate the AIR BAG warning lamp in the cluster when
a fault occurs.
STORAGE
The air bag module must be stored in its original
special container until used for service. Additionally,
it must be stored in a clean, dry environment, away
from sources of extreme heat, sparks, and sources of
high electrical energy. Always place or store the
module on a surface with the trim cover facing up to
minimize movement in case of accidental deploy-
ment.
HANDLING LIVE MODULE
At no time should any source of electricity be per-
mitted near the inflator on the back of the module.
When carrying a live module, the trim cover should
be pointed away from the body to minimize injury in
the event of accidental deployment. In addition, if
the module is placed on a bench or other surface, the plastic trim cover should be face up to minimize
movement in case of accidental deployment. When handling a steering column with an air bag
module attached, never place the column on the floor
or other surface with the steering wheel or module
face down.
DEPLOYED MODULE
The vehicle interior may contain a very small
amount of sodium hydroxide powder, a byproduct of
air bag deployment. Since this powder can irritate
the skin, eyes, nose or throat, be sure to wear safety
glasses, rubber gloves and long sleeves during
cleanup (Fig. 2).
If you find that the cleanup is irritating your skin,
run cool water over the affected area. Also, if you ex-
perience nasal or throat irritation, exit the vehicle
for fresh air until the irritation ceases. If irritation
continues, see a physician.
CLEANUP PROCEDURE
Begin the cleanup by putting tape over the two air
bag exhaust vents (Fig. 3) so that no additional pow-
der will find its way into the vehicle interior. Then
remove the air bag and air bag module from the ve-
hicle. Use a vacuum cleaner to remove any residual pow-
der from the vehicle interior. Work from the outside
in so that you avoid kneeling or sitting in a un-
cleaned area. Be sure to vacuum the heater and A/C outlets as
well (Fig. 4). In fact it's a good idea to run the blower
on low and to vacuum up any powder expelled from
the plenum. You may need to vacuum the interior of
the car a second time to recover all of the powder. Place the deployed bag and module in your auto-
motive scrap.
Fig. 2 Wear Safety Glasses and Rubber Gloves
8M - 2 RESTRAINT SYSTEMS Ä

SERVICE OF DEPLOYED AIR BAG MODULE
After an air bag has been deployed, the air bag
module and clockspring must be replaced because
they cannot be reused. Other air bag system compo-
nents are replaced if damaged.
SCHEDULED MAINTENANCE INSPECTION
Vehicles equipped with a Air Bag System must be
inspected every three years or 30,000 miles / 48,000
Km. The following items should be inspected. (1) Inspect components for damage or deteriora-
tion. (a) If the air bag module housing shows signs of
physical damage or abuse, replace the module. (b) Check that both front impact sensors are
properly installed to the upper crossmember of the
radiator closure panel. Repair as required.
(2) Check the air bag warning lamp for proper op-
eration as follows: (a) Turn ignition switch to the ON position, the
air bag warning lamp should light. If not, test the system using the DRB II and Passive Restraint
System Diagnostic Procedures Manual. Repair as
required.
(b) The air bag warning lamp lights, but fails to go
out after ten seconds. Test the system using the DRB
II and Passive Restraint System Diagnostic Proce-
dures Manual. Repair as required. (c) Erasing of fault codes is not required.
AIR BAG SYSTEM CHECK
WARNING: BEFORE BEGINNING ANY AIR BAG SYS-
TEM CHECK PROCEDURES, REMOVE AND ISOLATE
THE BATTERY NEGATIVE (-) CABLE (GROUND)
FROM THE VEHICLE BATTERY. THIS IS THE ONLY
SURE WAY TO DISABLE THE AIR BAG SYSTEM.
FAILURE TO DO THIS COULD RESULT IN ACCIDEN-
TAL AIR BAG DEPLOYMENT AND POSSIBLE PER-
SONAL INJURY.
WHEN AN UNDEPLOYED AIR BAG ASSEMBLY IS
TO BE REMOVED FROM THE STEERING WHEEL,
DISCONNECT BATTERY GROUND CABLE AND
ISOLATE. ALLOW SYSTEM CAPACITOR TO DIS-
CHARGE FOR TWO MINUTES, THEN BEGIN AIR
BAG REMOVAL. (1) Disconnect the battery negative cable and iso-
late. (2) Remove forward console or cover as necessary.
(3) Connect DRB II to ASDM diagnostic 6-way con-
nector, located at right side of module. (4) Turn the ignition key to ON position. Exit vehicle
with DRB II. Use the latest version of the proper
cartridge. (5) After checking that no one is inside the vehicle,
connect the negative battery cable. (6) Using the DRB II, read and record active fault
data. (7) Read and record any stored faults.
(8) Refer to the Passive Restraint Diagnostic Test
Manual if any faults are found in steps 6 and 7. (9) Erase stored faults if there are no active fault
codes. If problems remain, fault codes will not erase. (10) With the ignition key in the ON position, make
sure no one is in the vehicle. (11) From the passenger side of vehicle, turn the
ignition key to OFF then ON and observe the instru-
ment cluster air bag lamp. It should go on for 6 to 8
seconds, then go out; indicating system is functioning
normally. If air bag warning lamp either fails to light,
blinks on and off or goes on and stays on, there is
a system malfunction. Refer to the Passive Re-
straint Diagnostic Test Manual to diagnose the
problem.
Fig. 3 Seal the Air Bag Exhaust Vents
Fig. 4 Vacuum Heater and A/C Outlets
Ä RESTRAINT SYSTEMS 8M - 3

STEERING WHEEL
WARNING: BEFORE BEGINNING ANY AIR BAG
SYSTEM REMOVAL OR INSTALLATION PROCE-
DURES, REMOVE AND ISOLATE THE BATTERY
NEGATIVE (-) CABLE (GROUND) FROM THE VEHI-
CLE BATTERY. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIR BAG SYSTEM. FAILURE TO DO
THIS COULD RESULT IN ACCIDENTAL AIR BAG
DEPLOYMENT AND POSSIBLE PERSONAL INJURY. WHEN AN UNDEPLOYED AIR BAG ASSEMBLY
IS TO BE REMOVED FROM THE STEERING
WHEEL, DISCONNECT BATTERY GROUND CA-
BLE AND ISOLATE. ALLOW SYSTEM CAPACI-
TOR TO DISCHARGE FOR TWO MINUTES.
BEGIN AIR BAG REMOVAL.
REMOVAL
(1) Make sure front wheels are straight, and steer-
ing column is locked in place. (2) Disconnect battery negative cable and isolate.
(3) Wait two minutes for the reserve capacitor to
discharge before removing undeployed module. (4) Remove four nuts attaching air bag module
from the back side of steering wheel. (5) Lift module, and disconnect connector from rear
of module. (6) Remove speed control switch and connector if
so equipped or cover. (7) Remove steering wheel retaining nut.
(8) Remove steering wheel with steering wheel
puller Tool C-3428B.
INSTALLATION
(1) If the clockspring is not properly positioned or if front wheels were moved, follow the clockspring
centering procedure before installing steering wheel.
With the front wheels in the straight ahead position.
Position the steering wheel on the steering column.
Making sure to fit the flats on the hub of the steer-
ing wheel with the formations on the inside of the
clockspring. Pull the air bag and speed control wires
through the lower, larger hole in the steering wheel
and the horn wire through smaller hole at the top.
Make sure not to pinch wires (Fig. 11).
(2) Install retaining nut, and tighten to 61 N Im (45
ft. lbs.) torque. (3) Connect horn wiring lead.
(4) Connect 4-way connector to speed control
switch and attach switch to steering wheel. (5) Connect air bag lead wire to air bag module,
and secure module to steering wheel. (6) Do not connect negative battery cable. Refer to
Air Bag System Check for proper procedure.
STEERING COLUMN SWITCHES
This procedure covers the removal and installation
of the steering wheel and clockspring. Once the
steering wheel and clockspring have been removed,
refer to the appropriate section of this service man-
ual for switch replacement.
WARNING: BEFORE BEGINNING ANY AIR BAG
SYSTEM REMOVAL OR INSTALLATION PROCE-
DURES, REMOVE AND ISOLATE THE BATTERY
NEGATIVE (-) CABLE (GROUND) FROM THE VEHI-
CLE BATTERY. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIR BAG SYSTEM. FAILURE TO DO
THIS COULD RESULT IN ACCIDENTAL AIR BAG
DEPLOYMENT AND POSSIBLE INJURY.
WHEN AN UNDEPLOYED AIR BAG ASSEMBLY
IS TO BE REMOVED FROM THE STEERING
WHEEL, DISCONNECT BATTERY GROUND CA-
BLE AND ISOLATE. ALLOW SYSTEM CAPACI-
Fig. 10 Clockspring (Auto-Locking)
Fig. 11 Steering Wheel Wiring
Ä RESTRAINT SYSTEMS 8M - 7