passive restraint systems

8/14/2019 Passive Restraint Systems

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PASSIVE RESTRAINT SYSTEMS

CONTENTS

page page

GENERAL INFORMATION

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1

DESCRIPTION AND OPERATION

AIRBAG CONTROL MODULE . . . . . . . . . . . . . . . 3

AIRBAG MODULE . . . . . . . . . . . . . . . . . . . . . . . . 2

CLOCKSPRING . . . . . . . . . . . . . . . . . . . . . . . . . . 3

IMPACT SENSOR . . . . . . . . . . . . . . . . . . . . . . . . 3

DIAGNOSIS AND TESTING

AIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 3

SERVICE PROCEDURES

AIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . 4

CLEANUP PROCEDURE . . . . . . . . . . . . . . . . . . . 4

REMOVAL AND INSTALLATION

AIRBAG CONTROL MODULE . . . . . . . . . . . . . . . 9

AIRBAG MODULE . . . . . . . . . . . . . . . . . . . . . . . . 5

CLOCKSPRING . . . . . . . . . . . . . . . . . . . . . . . . . 10

DRIVER SIDE AIRBAG TRIM COVER AND

HORN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . 6

PASSENGER SIDE AIRBAG DOOR . . . . . . . . . . . 8

ADJUSTMENTS

CLOCKSPRING CENTERING . . . . . . . . . . . . . . . 11

SPECIAL TOOLS

STEERING WHEEL . . . . . . . . . . . . . . . . . . . . . . 12

GENERAL INFORMATION

INTRODUCTION

A d u a l fr on t a ir b a g s y st e m i s a s t a n da r d e qu ip -

m en t s a fet y fe at u r e on t h is m od el. T he s ys te m

includes an inflatable airbag module in the center of

t h e s t e er i n g w h e e l, a n d a s e con d i n fl a t a b le a i r ba g

module in the instrument panel above the glove box.

This system is designed to reduce serious injuries to

t h e d r i v e r a n d f r o n t s e a t p a s s e n g e r d u r i n g a f r o n t a limpact of the vehicle.

To t e s t t h i s p a s s i ve r e s t r a in t s ys t e m , r e fe r t o t h e

p r op e r D ia g n os t ic P r oce d u r es m a n u a l . I f a n a i r ba g

module assembly is defective and non-deployed, refer

to the Chrysler Corporation current parts return l ist

in the Warranty Policies and Procedures manual for

the proper handling procedures.

F ol low in g a r e g en e r a l d e scr i pt i on s of t h e m a j or

components in the airbag system. Refer to 8W-43 -

Airbag System in Group 8W - Wiring Diagrams for

complete circuit descriptions and diagrams.

T J PASSIVE RESTRAINT SYSTEMS 8M - 1


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WARNING: THE AIRBAG SYSTEM IS A SENSITIVE, COM-

PLEX ELECTROMECHANICAL UNIT. BEFOREATTEMPTING TO DIAGNOSE OR SERVICE ANY AIR-BAG SYSTEM OR RELATED STEERING WHEEL,

STEERING COLUMN, OR INSTRUMENT PANEL

COMPONENTS YOU MUST FIRST DISCONNECTAND ISOLATE THE BATTERY NEGATIVE (GROUND)CABLE. THEN WAIT TWO MINUTES FOR THE SYS-

TEM CAPACITOR TO DISCHARGE BEFORE FUR-THER SYSTEM SERVICE. THIS IS THE ONLY SUREWAY TO DISABLE THE AIRBAG SYSTEM. FAILURETO DO THIS COULD RESULT IN ACCIDENTAL AIR-

BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY. THE AIRBAG MODULE INFLATOR ASSEMBLY

CONTAINS SODIUM AZIDE AND POTASSIUM

NITRATE. THESE MATERIALS ARE POISONOUSAND EXTREMELY FLAMMABLE. CONTACT WITH

ACID, WATER, OR HEAVY METALS MAY PRODUCEHARMFUL AND IRRITATING GASES (SODIUMHYDROXIDE IS FORMED IN THE PRESENCE OF

MOISTURE) OR COMBUSTIBLE COMPOUNDS. INADDITION, THE PASSENGER AIRBAG MODULECONTAINS ARGON GAS PRESSURIZED TO OVER2500 PSI. DO NOT ATTEMPT TO DISMANTLE AN

AIRBAG MODULE OR TAMPER WITH ITS INFLA-TOR. DO NOT PUNCTURE, INCINERATE, OR BRINGINTO CONTACT WITH ELECTRICITY. DO NOTSTORE AT TEMPERATURES EXCEEDING 93 C

(200 F). REPLACE AIRBAG SYSTEM COMPONENTS

ONLY WITH PARTS SPECIFIED IN THE CHRYSLERMOPAR PARTS CATALOG. SUBSTITUTE PARTS

MAY APPEAR INTERCHANGEABLE, BUT INTERNALDIFFERENCES MAY RESULT IN INFERIOR OCCU-PANT PROTECTION. THE FASTENERS, SCREWS, AND BOLTS ORIG-

INALLY USED FOR THE AIRBAG SYSTEM COMPO-NENTS HAVE SPECIAL COATINGS AND ARESPECIFICALLY DESIGNED FOR THE AIRBAG SYS-TEM. THEY MUST NEVER BE REPLACED WITH ANYSUBSTITUTES. ANY TIME A NEW FASTENER IS

NEEDED, REPLACE IT WITH THE CORRECT FAS-TENERS PROVIDED IN THE SERVICE PACKAGE ORSPECIFIED IN THE CHRYSLER MOPAR PARTS CAT-ALOG.

WHEN A STEERING COLUMN HAS AN AIRBAGMODULE ATTACHED, NEVER PLACE THE COLUMNON THE FLOOR OR ANY OTHER SURFACE WITHTHE STEERING WHEEL OR AIRBAG MODULE FACE

DOWN.

DESCRIPTION AND OPERATION

AIRBAG MODULE

DRIVER SIDE

T h e a ir b a g m od u le p r ot e ct ive t r im cove r is t h e

m os t v is ib le p a r t of t h e d r iv er s id e a i r ba g s ys t e m .T he m od u le is m ou n t ed d ir ect ly t o t h e s t eer in g

wheel. Located under the airbag module tr im cover

a r e t h e h or n s w it ch , t h e a i r ba g c u s h ion , a n d t h e a i r -

bag cushion supporting components. The airbag mod-

u l e in clu d es a h ou s in g t o w h ich t h e cu s h ion a n d

inflator are attached and sealed. The airbag module

cannot be repaired, and must be replaced if deployed

o r i n a n y w a y d a m a g e d .

T h e i n fl a t or a s s em b ly i s m o u n t e d t o t h e b a ck of

the airbag module. The inflator seals the hole in the

airbag cushion so it can discharge the gas it produces

d ir e ct ly in t o t h e cu s h ion w h en s u pp lie d w it h t h e

proper electr ical signa l. The protective tr im cover isf i t t e d t o t h e f r o n t o f t h e a i r b a g m o d u l e a n d f o r m s a

decorative cover in the center of th e steering wheel.

Upon airbag deployment, the cover will split at a pre-

determined breakout l ine.

PASSENGER SIDE

The airbag door on the instrument panel above the

g lov e b o x i s t h e m os t v is ib le p a r t of t h e p a s s en g er

s id e a i r ba g s ys t e m . L oca t e d u n d e r t h e a i r ba g d oor

a r e t h e a ir b a g cu s h ion a n d it s s u pp or t in g com p o-

n en t s. T he a ir ba g m od u le in clu d es a h ou s in g t o

w h ich t h e cu s h ion a n d in fla t or a r e a t t a ch e d a n d

s e a le d . T h e a i r ba g m od u le ca n n o t b e r e p a ir e d , a n dmust be replaced if deployed or in a ny way damaged.

T h e i n fl a t or a s s em b ly i s m o u n t e d t o t h e b a ck of

the airbag module. The inflator seals the hole in the

airbag cushion so it can discharge the gas it produces

d ir e ct ly in t o t h e cu s h ion w h en s u pp lie d w it h t h e

proper electrical signal. The airbag door is secured to

t h e i n s t r u m e n t p a n e l , a n d h a s p r e d e t e r m i n e d b r e a k -

ou t l in e s con ce a le d b en e a t h i t s d e cor a t i ve cov er .

Upon airbag deployment, th e air bag door will split

a t t h e b r ea k ou t l in e s a n d t h e d oor w il l p iv ot ou t of

the way.

The airbag module is secured with two brackets to

t h e i n st r u m e n t p a n e l a r m a t u r e a b ov e t h e g lov e b oxop en in g , a n d w it h on e b r a ck et t o t h e d a sh p a n el

behind the glove box. F ollowing an airbag deploy-

m e n t , t h e i n s t r u m e n t p a n e l a r m a t u r e a s s e m b l y , t h e

airbag door, and the airbag module must be replaced.

STORAGE

An a i r ba g m od u le m u s t b e s t o r ed i n i t s o r ig in a l ,

special container until used for service. Also, it must

b e s t or e d i n a cl ea n , d r y e n vi r on m e n t ; a w a y fr om

sources of extreme heat, sparks, and high electrical

energy. Always place or store an airbag module on a

8M - 2 PASSIVE RESTRAINT SYSTEMS T J

GENERAL I NFORMATION (Continued)


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surface with i ts trim cover or airbag side facing up,

t o m in im iz e m ov em e n t in ca s e of a n a ccid en t a l

deployment.

IMPACT SENSOR

T h e i m pa ct s e n sor p r ov id e s v er i fi ca t i on of t h e

direction and severity of an impact. One impact sen-s or i s u s e d. I t i s l oca t e d i n s id e t h e Ai r ba g C on t r o l

Module (ACM), which is secured to a bracket on the

floor pan transmission tunnel inside the vehicle.

The impact sensor is an accelerometer that senses

the rate of deceleration. The microprocessor in the

ACM monitors the impact sensor signal. A pre-pro-

grammed decision algorithm in the microprocessor

d e t er m i n es w h e n t h e d e ce le r a t ion r a t e i n di ca t e s a n

i m pa ct t h a t i s s e ve r e e n o u gh t o r e q u ir e a i r ba g s ys -

tem protection. When the programmed conditions are

met, the ACM sends an electrical signal to deploy the

airbag system components.

T h e i m pa ct s e n sor i s ca l ib r a t e d for t h e s p eci fi cvehicle. The sensor is only serviced as a unit with the

ACM. The sensor cann ot be repaired or adjusted a nd,

if faulty or damaged, the ACM unit must be replaced.

CLOCKSPRING

The clockspring is mounted on the steering column

behind the steering wheel. This assembly consists of

a plastic h ousing which contains a flat , r ibbon-like,

electrically conductive t ape that winds and unwinds

with the steering wheel rotation.

The clockspring is used to ma intain a continuous

e le ct r i ca l ci r cu i t b et w e en t h e w ir e h a r n e s s a n d t h e

d r i v e r s i d e a i r b a g m o d u l e , t h e h o r n s w i t c h , a n d t h evehicle speed control switches on vehicles that are so

equipped.

The clockspring must be properly centered when it

is installed on the steering column following any ser-

vice removal, or i t will be damaged. See the Clock-

s p r in g C en t e r in g p r oce d u r e i n t h i s g r ou p for m or e

information.

The clockspring cannot be repaired. If the clock-

s p r i n g i s f a u l t y , d a m a g e d , o r i f t h e a i r b a g h a s b e e n

deployed, the clockspring must be replaced.

AIRBAG CONTROL MODULE

T h e Ai r ba g C on t r o l M od u le (AC M) con t a i n s t h e

impact sensor, an d a microprocessor tha t monitors

t h e i m pa ct s e n sor a n d t h e a i r ba g s ys t e m e le ct r i ca l

circuits to determine the system readiness. The ACM

contains On-Board Diagnostics (OBD), and will send

an airbag lamp-on message to the instrument cluster

on the Chrysler Collision Detection (CCD) dat a bus

t o l i g h t t h e a i r b a g i n d i c a t o r l a m p i n t h e i n s t r u m e n t

cluster when a monitored airbag system fault occurs.

The ACM also conta ins an energy-storage capaci-

tor. This capacitor stores enough electrical energy to

deploy the airbags for up to one second following a

battery disconnect or failure during a n impact. The

purpose of th e capacitor is t o provide airbag system

protection in a severe secondary impact, if the initial

impact has damaged or disconnected the battery, but

was not severe enough to deploy the airbags.

T h e A CM ca n n o t b e r e p a i r ed a n d , i f d a m a g ed orfaulty, it must be replaced.

DIAGNOSIS AND TESTING

AIRBAG SYSTEM

A D R B s ca n t ool i s r e q u ir e d for d ia g n os is of t h e

airbag system. Refer to the proper Diagnostic Proce-

dures manual for more information.

(1 ) D is con n e ct a n d i sol a t e t h e b a t t e r y n e ga t i ve

cable. If the airbag has not been deployed, wait two

minutes for the system capacitor to discharge before

further service.(2) Connect the DRB scan tool to the 16-way data

link wire harness connector. The connector is located

on t h e d r ive r s id e low er e dge of t h e i n st r u m en t

panel, outboard of the steering column (Fig. 1).

(3 ) Tu r n t h e i gn i t ion s w it ch t o t h e O n p os it i on .

Exit th e vehicle with the DRB. Use the latest version

of the proper DRB cartridge.

(4) After checking t hat nobody is inside the vehi-

cle, reconnect the battery negative cable.

(5 ) Us in g t h e D RB , r e a d a n d r e cor d t h e a ct ive

Diagnostic Trouble Code (DTC) data.

(6 ) R ea d a n d r e cor d a n y s t or e d D T C d a t a .

Fig. 1 16-Way Data Link Connector - Typical


DESCRIPTION AND OPERATION (Continued)


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(7) Refer to the proper Diagnostic Procedures man-

u a l i f a n y D T C i s f o u n d i n S t e p 5 o r S t e p 6 .

(8 ) E r a s e t h e s t or e d D TC d a t a . I f a n y p r ob le m s

remain, the stored DTC data will not erase.

(9 ) W it h t h e i gn i t ion s w it ch s t il l i n t h e O n p os i-

tion, make sure nobody is in the vehicle.

(1 0) F r om ou t s i de of t h e v eh i cl e (a w a y fr om t h eairbag modules in case of an accidental deployment)

turn the ignition switch to the Off position for about

t en s econ d s, a n d t h en b ack t o t h e O n p os it ion .

Observe the airbag indicator lamp in the instrument

cluster. I t should l ight for six to eight seconds, and

then go out. This indicates that the airbag system is

functioning normally.

NOTE: If the airbag indicator lamp fails to light, or

lights and stays on, there is an airbag system mal-function. Refer to the proper Diagnostic Proceduresmanual to diagnose the problem.

SERVICE PROCEDURES

AIRBAG SYSTEM

NON-DEPLOYED

At no t ime should any source of electricity be per-

m it t e d n e a r t h e in fla t or on t h e b a ck of a n a ir b a g

module. When carrying a non-deployed airbag mod-

u le , t h e t r im cov er or a ir b a g s i de of t h e m od u le

s h ou l d b e p oi n t ed a w a y fr om t h e b od y t o m i n im i ze

i n ju r y i n t h e e ve n t of a n a cci de n t a l d e pl oy m en t . I f

the module is placed on a bench or any other surface,

the trim cover or airbag side of the module should be

fa ce u p t o m in i mize m ove m en t in t h e e ve n t of a n

accidental deployment.

In addition, the airbag system should be disarmed

w h e n ev er a n y s t e er i n g w h e el , s t e er i n g col u m n , or

i n st r u m e n t p a n e l com p on e n t s r e q u ir e d ia g n os is or

service. Failure to observe this warning could result

i n a cci de n t a l a i r ba g d e pl oy m en t a n d p os s ib le p e r-

s on a l i n ju r y. R efe r t o G r o u p 8 E - I n s t r u m e n t P a n e l

S ys t e m s for a d d it i on a l s e r vi ce p r oce d u r es on t h e

i n st r u m e n t p a n e l. R efe r t o G r ou p 1 9 - S t e e r in g for

additional service procedures on the steering wheel

and steering column.

DEPLOYED

Any vehicle which is to be returned to use after an

airbag deployment, mu st have both airbag modules,

the clockspring, the instrument panel assembly, and

the passenger side airbag door replaced. These com-

ponents will be damaged or weakened as a result of

a n a ir b a g d e pl oy me n t , w h ich m a y or m a y n ot b e

ob viou s d u r in g a vi su a l in s pe ct ion , a n d a r e n ot

intended for reuse.

O t h er v eh i cle com p on e n t s s h ou ld b e cl os ely

inspected, but are to be replaced only as required by

the extent of the visible damage incurred.

CLEANUP PROCEDURE

Following an airbag system deployment, t he vehi-

cle interior will contain a powdery residue. This res-idue is primarily sodium bicarbonate (baking soda),

used as an airbag cushion lubricant. However, there

w il l a l so b e t r a c es of s od iu m h y dr ox id e p ow d er , a

chemical by-product of th e generant used for airbag

deployment. Since this powder can irri tate the skin,

eyes, nose, or throat, be sure to wear safety glasses,

r u b be r glov es , a n d a lon g-s le eve d s h ir t d u r in g

cleanup (Fig. 2).

WARNING: IF YOU EXPERIENCE SKIN IRRITATIONDURING CLEANUP, RUN COOL WATER OVER THEAFFECTED AREA. ALSO, IF YOU EXPERIENCE

IRRITATION OF THE NOSE OR THROAT, EXIT THEVEHICLE FOR FRESH AIR UNTIL THE IRRITATIONCEASES. IF IRRITATION CONTINUES, SEE A PHYSI-CIAN.

Begin the cleanup by removing the airbag modules

from the vehicle as described in this group.

Use a vacuum cleaner to remove any residual pow-

der from the vehicle interior. Clean from outside the

vehicle and work your way inside, so that you avoidkneeling or sit t ing on a non-cleaned area.

Be sure to vacuum the heater and air conditioning

o u t l e t s a s w e l l ( F i g . 3 ) . R u n t h e h e a t e r a n d a i r c o n -

ditioning blower on the lowest speed setting and vac-

uum any powder expelled from the outlets. You may

need t o vacuum the interior of the vehicle a second

time to recover all of the powder.

Place the deployed airbag modules in your vehicu-

lar scrap pile.

Fig. 2 Wear Safety Glasses and Rubber Gloves


DIAGNOSIS AND T ESTING (Continued)


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REMOVAL AND IN STALLATI ON

AIRBAG MODULE

WARNING: THE AIRBAG SYSTEM IS A SENSITIVE, COM-

PLEX ELECTROMECHANICAL UNIT. BEFOREATTEMPTING TO DIAGNOSE OR SERVICE ANY AIR-BAG SYSTEM OR RELATED STEERING WHEEL,

STEERING COLUMN, OR INSTRUMENT PANELCOMPONENTS YOU MUST FIRST DISCONNECTAND ISOLATE THE BATTERY NEGATIVE (GROUND)CABLE. THEN WAIT TWO MINUTES FOR THE SYS-

TEM CAPACITOR TO DISCHARGE BEFORE FUR-THER SYSTEM SERVICE. THIS IS THE ONLY SURE

WAY TO DISABLE THE AIRBAG SYSTEM. FAILURETO DO THIS COULD RESULT IN ACCIDENTAL AIR-

BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY. WHEN REMOVING A DEPLOYED AIRBAG MOD-

ULE, RUBBER GLOVES, EYE PROTECTION, AND A

LONG-SLEEVED SHIRT SHOULD BE WORN. THEREMAY BE DEPOSITS ON THE AIRBAG MODULE ANDOTHER INTERIOR SURFACES. IN LARGE DOSES,THESE DEPOSITS MAY CAUSE IRRITATION TO THESKIN AND EYES.

DRIVER SIDE


ca b le . I f t h e a i r ba g m od u l e h a s n ot b ee n d e pl oy ed ,

w a it t w o m i n u t e s for t h e s ys t e m ca p a ci t or t o d is -

charge before further service.

(2 ) F r om t h e u n d er s id e of t h e s t ee r in g w h ee l,

r e m ov e t h e t w o s cr e ws t h a t s e cu r e t h e d r iv er s id e

airbag module to the steering wheel (Fig. 4).

(3) Pull the airbag module away from the steering

wheel far enough to access the wire harness connec-

tors on the back of the airbag module.

(4 ) U n p lu g t h e a ir b a g m od u le a n d h or n s wit ch

wire harness connectors from the back of the airbag

module.

(5) Remove the driver side a irbag module from the

vehicle.

(6) If the a irbag ha s been deployed, the clockspring

must be r eplaced. See Clockspring in this group for

the procedures.

(7) When installing t he airbag module, connect th e

clockspring wire harn ess connector to t he module by

pressing straight in on the connector. Be certain that

the connector is fully engaged by observing the latch-

ing clip arms on the top of the connector.

(8) Connect the horn switch wire har ness connec-

tors.

(9) Install the airbag module in the steering wheel.

Tigh t e n t h e m ou n t in g s cr e ws t o 1 0.2 N m (9 0 i n.

lbs.).

(10) Do not connect t he battery negative cable at

t h i s t i m e. S e e Ai r ba g S ys t e m i n t h e D ia g n os is a n d

Testing section of t his group for the proper proce-

dures.

PASSENGER SIDE

The following procedure is for replacement of a

faulty or damaged pa ssenger side a irbag module. If

the passenger side airbag module has been deployed,

t h e i n s t r u m en t p a n e l a s s e m b ly, t h e p a s s en g er s id ea i r ba g d oor a n d t h e p a s s en g er s id e a i r ba g m od u le

must be replaced. Refer to Instrument Panel Assem-

b l y i n G r o u p 8 E - I n s t r u m e n t P a n e l S y s t e m s f o r t h e

procedures.


ca b le . I f t h e a i r ba g m od u le h a s n ot b ee n d e pl oy ed ,

w a it t w o m i n u t e s f or t h e s ys t e m ca p a ci t or t o d i s -

charge before further service.

(2) R emove t h e i nst r ument panel as s embly fr om t he

vehicle. Refer to Instrument Panel Assembly in Group 8E

- Instrument Panel Systems for the procedures.

Fig. 3 Vacuum Heater and A/C OutletsFig. 4 Driver Side Airbag Module Remove/Install


SERVI CE PROCEDURES (Continued)


6/12


7/12

(4 ) R em ov e t h e fou r n u t s t h a t s ecu r e t h e u p pe r

a n d l ow er t r i m c ov er r e t a in e r s t o t h e s t u d s on t h e

airbag housing (Fig. 8) or (Fig. 9).

(5) Remove the upper and lower trim cover retain-

ers from the airbag housing studs.

(6 ) Re m ov e t h e h or n s w it ch g r ou n d w ir e e ye le t

from the airbag housing stud.

(7) Disengage the four trim cover locking blocks

fr om t h e l ip a r ou n d t h e ou t s i de e d ge of t h e a i r ba g

housing and remove the housing from the cover (Fig.

10) or (Fig. 11).

WARNING: USE EXTREME CARE TO PREVENTANY FOREIGN MATERIAL FROM ENTERING THEDRIVER SIDE AIRBAG MODULE, OR BECOMINGENTRAPPED BETWEEN THE DRIVER SIDE AIRBAG

MODULE TRIM COVER AND THE DRIVER SIDE AIR-BAG MODULE. FAILURE TO OBSERVE THIS WARN-ING COULD RESULT IN OCCUPANT INJURIESUPON AIRBAG DEPLOYMENT.

Fig. 8 Airbag Trim Cover RetainersRemove/Install - w/o Speed Control

Fig. 9 Airbag Trim Cover Retainers

Remove/Install - w/Speed Control

Fig. 10 Airbag Trim CoverRemove/Install - w/o Speed Control

Fig. 11 Airbag Trim CoverRemove/Install - w/Speed Control


REMOVAL AND INSTALLATION (Continued)


8/12

(8 ) Wh en in s ta llin g t h e t r im cover a n d h or n

s w it ch , b e ce r t a in t h a t t h e l ock i n g b l ock s a r e fu l ly

engaged on the l ip of the airbag housing (Fig. 12).

(9) When installing the upper and lower trim cover

r e t a in e r s , b e ce r t a in t h a t t h e t a b s o n e a ch r e t a in e r

a r e e n ga g ed i n t h e r e t a in e r s lot s of t h e t r i m cov er

(Fig. 11).

(1 0) I n s t a ll a n d t igh t e n t h e t r im cov er r e t a in e r

nuts to 10 Nm (90 in. lbs.) .(11) Reverse the remaining removal procedures to

complete the installation, but do not connect the bat-

tery n egative cable at this t ime. See Airbag System

in the Diagnosis and Testing section of this group for

the proper procedures.

PASSENGER SIDE AIRBAG DOOR

(1 ) R e m ov e t h e i n st r u m e n t p a n e l a s s em b ly fr om

the vehicle. See Instrument Panel Assembly in Group

8E - Instrument Panel Systems for the procedures.

( 2 ) P l a c e t h e i n s t r u m e n t p a n e l f a c e u p o n a w o r k

bench.

(3) Remove the five screws that secure the airbagdoor upper flange to the top of the instrument panel

(Fig. 13).

(4) Remove the grab handle bezel from the instru-

m e n t p a n el. S ee G r a b H a n d l e B e ze l i n G r ou p 8 E -

Instrument Panel Systems for the procedures.

(5) Remove the five screws that secure the airbag

door lower flange to the instrument panel above the

glove box opening.

(6 ) P l a ce t h e i n st r u m e n t p a n e l f a ce d ow n on t h e

work bench.

(7) Remove th e passen ger side airbag m odule from

t h e in s t r u m en t p a n el. S ee Air b a g M od u le in t h is

group for the procedures.

(8) Remove the two screws that secure the passen-

ger side airbag door bracket to the instrument panel

armature (Fig. 14).

(9) R em ove a n d d is ca r d t h e t wo a ir ba g d oor

b r a c k e t J - n u t s f r o m t h e i n s t r u m e n t p a n e l a r m a t u r e .

These J-nuts must be replaced with new parts when-

ever the airbag door bracket screws are removed.

(1 0) P l a ce t h e in s t r u m en t p a n el fa ce u p on t h e

work bench.

(11) Remove the passenger side airbag door from

t h e i n s t r u m e n t p a n e l .(1 2) R ev er s e t h e r e m ov al p r oce du r e s t o i n st a l l.

T ig h te n th e two p a s s e n ge r s id e a ir b a g d oor b r a ck e t

screws to 12 Nm (105 in. lbs.). Tighten the upper and

lower airbag door flange screws to 2.2 Nm (20 in. lbs.).

WARNING: BE CERTAIN THAT ALL FASTENERS

FOR THE AIRBAG DOOR ARE REINSTALLED. FAIL-URE TO DO THIS COULD RESULT IN IMPROPEROR INCOMPLETE AIRBAG DEPLOYMENT, ANDPOSSIBLE PERSONAL INJURY.

Fig. 12 Airbag Trim Cover Locking Blocks Installed

Fig. 13 Passenger Side Airbag Door Upper Screws

Remove/Install

Fig. 14 Passenger Side Airbag Door Remove/Install




9/12




dures.

AIRBAG CONTROL MODULE

WARNING:

THE AIRBAG CONTROL MODULE CONTAINSTHE IMPACT SENSOR, WHICH ENABLES THE SYS-TEM TO DEPLOY THE AIRBAG. BEFORE ATTEMPT-ING TO DIAGNOSE OR SERVICE ANY AIRBAG

SYSTEM OR RELATED STEERING WHEEL, STEER-ING COLUMN, OR INSTRUMENT PANEL COMPO-NENTS YOU MUST FIRST DISCONNECT ANDISOLATE THE BATTERY NEGATIVE (GROUND)

CABLE. THEN WAIT TWO MINUTES FOR THE SYS-TEM CAPACITOR TO DISCHARGE BEFORE FUR-THER SYSTEM SERVICE. THIS IS THE ONLY SURE

WAY TO DISABLE THE AIRBAG SYSTEM. FAILURETO DO THIS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY. NEVER STRIKE OR KICK THE AIRBAG CON-

TROL MODULE, AS IT CAN DAMAGE THE IMPACT

SENSOR OR AFFECT ITS CALIBRATION. IF AN AIR-BAG CONTROL MODULE IS ACCIDENTALLYDROPPED DURING SERVICE, THE MODULE MUSTBE SCRAPPED AND REPLACED WITH A NEW UNIT.




further service.( 2 ) P u l l b a c k t h e c a r p e t f r o m t h e f l o o r p a n t r a n s -

m i ss ion t u n n e l a r e a u n d e r t h e h e a t e r -A/C h ou s in g

floor duct and forwar d of th e center floor console.

(3 ) If t h e v eh i cl e i s e qu i p pe d w it h t h e op t ion a l

a n t i -l ock b r a k e s ys t e m , r e m ov e t h e a cce le r a t ion

s wi tch a n d m ou n t in g b r a ck e t fr om t h e fl oor p a n

tran smission tun nel (Fig. 15).

NOTE: Always remove and replace the airbag con-trol module and its mounting bracket as a unit.Replacement modules include a replacement

mounting bracket. Do not transfer the module to

another mounting bracket.

(4) Remove the four screws th at secure the Airbag

Control Module (ACM) mounting bracket to the floor

pan transmission tunnel (Fig. 16).

Fig. 15 Acceleration Switch Remove/Install

Fig. 16 Airbag Control Module Remove/Install




10/12

(5) Slide the ACM and mounting bracket out from

under the heater-A/C housing floor duct far enough

to access the wire harness connector.

(6 ) U n p l u g t h e AC M w ir e h a r n e s s con n e ct or . To

u n p l u g t h e w ir e h a r n e s s con n e ct or fr om t h e AC M

(Fig. 17):

(a ) P u ll t h e t w o w h it e lock s ou t a b ou t 3 m m(0.125 in.) from each side of the connector.

(b) S qu eeze t h e t wo con n ect or la t ch t a bs

between the thumb and forefinger.

(c) Pu ll the conn ector out of the ACM receptacle.

(7) Remove th e ACM and mounting bracket from

the vehicle as a unit .

(8 ) Wh e n i n st a l li n g t h e AC M, p os it i on t h e u n i t

w it h t h e a r r o w o n t h e AC M h ou s in g p oi n t in g for -

ward.(9) Plug in the wire h arn ess connector to the ACM.

B e ce rt a in t h a t t h e con n ect or la t ch es a r e fu lly

engaged and that the connector locks are pushed in.

(10) Atta ch the ACM to t he floor pan tran smission

t u n n e l w it h t h e fou r m ou n t i n g s c r ew s . T ig h t en t h e

mounting screws to 10.7 Nm (95 in. lbs.).

(11) Reverse the remaining removal procedures to

complete the installation.




dures.

CLOCKSPRING

WARNING: THE AIRBAG SYSTEM IS A SENSITIVE,COMPLEX ELECTROMECHANICAL UNIT. BEFOREATTEMPTING TO DIAGNOSE OR SERVICE ANY AIR-

BAG SYSTEM OR RELATED STEERING WHEEL,STEERING COLUMN, OR INSTRUMENT PANELCOMPONENTS YOU MUST FIRST DISCONNECTAND ISOLATE THE BATTERY NEGATIVE (GROUND)

CABLE. THEN WAIT TWO MINUTES FOR THE SYS-TEM CAPACITOR TO DISCHARGE BEFORE FUR-THER SYSTEM SERVICE. THIS IS THE ONLY SUREWAY TO DISABLE THE AIRBAG SYSTEM. FAILURE

TO DO THIS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY.

(1) Turn the steering wheel until the front wheels

are in the straight-ahead position before starting the

procedure.




further service.

(3) Remove the driver side a irbag module from the

steering wheel. See Airbag Module in this group for

the procedures.

(4 ) If t h e v eh i cl e i s e qu i pp e d w it h t h e op t ion a l

ve h icl e s pe ed con t r ol, u n p lu g t h e s pe ed con t r ol

switch wire harness connector in the steering wheel.(5) Remove the nut tha t secures th e steering wheel

to the steering column upper shaft .

(6 ) R em ove t h e s t ee r in g w h ee l w it h a s t ee r in g

wheel puller (Special Tool C-3428-B).

(7 ) R em ov e t h e s t e er i n g col u m n op e n in g cov er

from th e instru ment panel. Refer to Steering Column

Opening Cover in Group 8E - Instrument Panel Sys-

tems for the procedures.

(8 ) If t h e ve h icle is s o e qu ip pe d, m ov e t h e t ilt

steering column to the fully raised position.

(9) Insert the key in t he ignition lock cylinder an d

turn the ignition switch to the On position.

(10 ) I n ser t a s m all s cr ew dr ive r or p in p u nchthrough the access hole in the lower steering column

shroud and depress the ignition lock cylinder retain-

ing tumbler (Fig. 18).

(11) Wh ile h oldin g t he r et ain in g t um bler

depressed, pull the ignition lock cylinder and key out

of the ignition lock housing.

(12 ) R em ove t h e t h r ee s cr ew s t h a t s ecu r e t h e

lower steering column shroud to the upper shroud.

(1 3) I f t h e v eh icle is e qu ip pe d w it h a s t a n da r d

non-til t steering column, loosen the two upper steer-

ing column mounting n uts. If the vehicle is equipped

Fig. 17 Airbag Control Module Connector Removal




11/12

with the optional t i l t steering column, move the t i l t

steering column to the fully lowered position.

(1 4) R em ov e b ot h t h e u p pe r a n d low er s h r ou d s

from the steering column.

(15) Unplug the two wire harness connectors from

t h e i n st r u m e n t p a n e l s id e of t h e cl ock s p r in g (F i g.

19).

(16) To r emove the clockspring, carefully l ift the

locating fingers of the clockspring assembly from the

steering column as necessary. If t he clockspring locat -

ing fingers are broken, be certain to remove the bro-

ken pieces from the upper steering column housing.

T he clock sp r in g ca n n ot b e r ep a ir ed . I t m u st b e

r e p la ce d i f fa u l t y o r d a m a g ed , o r i f t h e a i r ba g h a s

been deployed.

(1 7) Wh e n in s t a lli n g t h e clock s pr in g , s n a p t h e

clockspring onto the steering column. If t he clock-

s p r in g i s n ot p os it i on e d p r op e r ly i n r e la t i on t o t h e

s t e er i n g w h e el , s e e C lock s p r in g C en t e r in g i n t h i s

group before installing t he steering wheel.

(18) Plug t he t wo clockspring wire ha rn ess conn ec-

t or s in t o t h e in s t r u m en t p a n el s id e of t h e clock -s p r in g . B e ce r t a in t h a t t h e w ir e h a r n e s s con n e ct or

latches are fully engaged.

(1 9) Re in s t a l l t h e s t e er i n g col u m n s h r ou d s a n d

ignition lock cylinder. Tighten the shroud mounting

screws to 2 Nm (18 in. lbs.).

(20) Reinstall th e steering column opening cover to

t h e in s t r u m en t p a n el . R efe r t o S t ee r in g C ol um n

Opening Cover in Group 8E - Instrument Panel Sys-

tems for the procedures.

(21) Th e fr on t wh eels s hou ld s till be in t h e

s t r a i gh t -a h e a d p os it i on . I n s t a ll t h e s t e er i n g w h e el

b ein g ce r t a in t o i n d ex t h e fl at s on t h e h u b of t h e

s t e er i n g w h e e l w i t h t h e for m a t i on s on t h e i n si de of t h e cl ock s p r in g . P u l l t h e w ir e h a r n e s s t h r o u gh t h e

l ow er h ol e i n t h e s t e er i n g w h e e l h u b . T ig h t en t h e

steering wheel nut to 61 Nm (45 ft . lbs.) . Be certain

n ot t o p i n ch t h e w ir i n g b e t we en t h e s t e er i n g w h e el

a n d t h e n u t .

(22) Install the driver side airbag module onto the


the procedures.

ADJUSTMENTS

CLOCKSPRING CENTERINGI f t h e r ot a t i n g t a p e w it h i n t h e cl ock s p r in g i s n ot

positioned properly in relation to the steering wheel

and the front wheels, the clockspring may fail during

u s e . T h e cl ock s p r in g m u s t b e ce n t e r ed i f i t i s n ot

k n ow n t o b e p r op er ly p os it ion e d, or if t h e fr on t

wheels were moved from the straight-ahead position

with the clockspring removed during any service pro-

cedure.

WARNING: THE AIRBAG SYSTEM IS A SENSITIVE,

COMPLEX ELECTROMECHANICAL UNIT. BEFOREATTEMPTING TO DIAGNOSE OR SERVICE ANY AIR-

BAG SYSTEM OR RELATED STEERING WHEEL,STEERING COLUMN, OR INSTRUMENT PANEL

COMPONENTS YOU MUST FIRST DISCONNECTAND ISOLATE THE BATTERY NEGATIVE (GROUND)CABLE. THEN WAIT TWO MINUTES FOR THE SYS-TEM CAPACITOR TO DISCHARGE BEFORE FUR-THER SYSTEM SERVICE. THIS IS THE ONLY SURE

WAY TO DISABLE THE AIRBAG SYSTEM. FAILURETO DO THIS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY.

Fig. 18 Steering Column Shrouds Remove/Install

Fig. 19 Clockspring Remove/Install




12/12

(1) Turn the steering wheel until the front wheels

are in the straight-ahead position before starting the

centering procedure.




further service.(3) Remove the driver side a irbag module from the


the procedures.

(4 ) If t h e v eh i cl e i s e qu i p pe d w it h t h e op t ion a l

v eh i cle s pe ed con t r ol, u n p lu g t h e s pe ed con t r ol

switch wire harness connector in the steering wheel.

(5) Remove the nut that secures the steering wheel

to the steering column upper shaft .

(6 ) R em ov e t h e s t ee r in g w h ee l w it h a s t ee r in g

wheel puller (Special Tool C-3428-B).

(7) Rotate the clockspring rotor clockwise to the

end of i ts travel (Fig. 20). D o n o t a p p l y e x c e s s i v e

t o r q u e .(8) From the end of the clockwise t ravel, rotate the

rotor about two and one-half turns counterclockwise,

unt il the rotor flats are horizontal. If the clockspring

w ir e h a r n e s s i s n o t a t t h e b ot t om , r ot a t e t h e cl ock -

spring another one-half turn.

(9) The front wheels should sti ll be in t he str aight-

ahead position. Install the steering wheel being cer-

t a in t o i n d ex t h e fla t s on t h e h u b of t h e s t ee r in g

wheel with the formations on the inside of the clock-

s p r in g . P u l l t h e w ir e h a r n e s s fr om t h e cl ock s p r in g

t h r o u gh t h e l ow er h ol e i n t h e s t e er i n g w h e el h u b .

Tighten the steering wheel nut to 61 Nm (45 ft. lbs.).

Be certain not to pinch any of the wiring between t hes t e e r i n g w h e e l a n d t h e n u t .

(1 0) I n s t a l l t h e a i r ba g m od u le on t o t h e s t e er i n g

wheel. See Airbag Module in this group for the pro-

cedures.

SPECIAL TOOLS

STEERING WHEEL

Fig. 20 Clockspring

Puller C-3428-B


ADJUSTMENTS (Continued)

passive restraint systems

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