08M Passive Restraint Systems

7/31/2019 08M Passive Restraint Systems

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PASSIVE RESTRAINT SYSTEMS

CONTENTS

page page

GENERAL INFORMATIONINTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 1

DESCRIPTION AND OPERATIONAIRBAG CONTROL MODULE . . . . . . . . . . . . . . 3AIRBAG MODULE . . . . . . . . . . . . . . . . . . . . . . . 2CLOCKSPRING . . . . . . . . . . . . . . . . . . . . . . . . . 3IMPACT SENSOR . . . . . . . . . . . . . . . . . . . . . . . 3

DIAGNOSIS AND TESTINGAIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 3

S ERVICE PROCED URESAIRBAG SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 4

CLEANUP PROCEDURE . . . . . . . . . . . . . . . . . . 4REMOVAL AND INSTALLATION

AIRBAG CONTROL MODULE . . . . . . . . . . . . . . 8AIRBAG MODULE . . . . . . . . . . . . . . . . . . . . . . . 5CLOCKSPRING . . . . . . . . . . . . . . . . . . . . . . . . . 9DRIVER SIDE AIRBAG TRIM COVER AND

HORN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . 6PASSENGER SIDE AIRBAG REAR MOUNTIN G

BRACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7ADJUSTMENTS

CLOCKSPRING CENTERING . . . . . . . . . . . . . . 10

GENERAL INFORMATION

INTRODUCTIONA dua l fron t a irbag syst em i s a s t anda rd equ 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 mincludes an inflatable airbag module in the center of the s teer ing wheel, and a second infla table a i rbagmodule in the instrument panel above the glove box.This system is designed to reduce serious injuries tothe dr iver and f ront seat passenger dur ing a f ronta limpact of the vehicle.

To tes t th is pass ive res t ra in t sys tem, refer to th e

proper Diagnost ic Procedures manual . I f a n a i rbagmodule assembly is defective and non-deployed, referto the Chrysler Corporation current parts return l istin the Warranty Policies and Procedures manual forthe proper handling procedures.

Fol lowing are general descr ipt ions of the majorcomponents in the airbag system. Refer to 8W-43 -Airbag System in Group 8W - Wiring Diagrams forcomplete circuit descriptions and diagrams.

NOTE: This group covers both Left-Hand Drive(LHD) and Right-Hand Drive (RHD) versions of thismodel. Whenever required and feasible, the RHDversions of affected vehicle components have beenconstructed as mirror-image of the LHD versions.While most of the illustrations used in this grouprepresent only the LHD version, the diagnostic and

service procedures outlined can generally beapplied to either version. Exceptions to this rulehave been clearly identified as LHD or RHD, if aspecial illustration or procedure is required.

ZG 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 ASSEMBLYCONTAINS SODIUM AZIDE AND POTASSIUMNITRATE. THESE MATERIALS ARE POISONOUSAND EXTREMELY FLAMMABLE. CONTACT WITH

ACID, WATER, OR HEAVY METALS MAY PRODUCEHARMFUL AND IRRITATING GASES (SODIUMHYDROXIDE IS FORMED IN THE PRESENCE OFMOISTURE) OR COMBUSTIBLE COMPOUNDS. INADDITION, THE PASSENGER AIRBAG MODULECONTAINS ARGON GAS PRESSURIZED TO OVER2500 PSI. DO NOT ATTEMPT TO DISMANTLE ANAIRBAG 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 COMPONENTSONLY WITH PARTS SPECIFIED IN THE CHRYSLERMOPAR PARTS CATALOG. SUBSTITUTE PARTSMAY APPEAR INTERCHANGEABLE, BUT INTERNALDIFFERENCES MAY RESULT IN INFERIOR OCCU-PANT PROTECTION.

THE FASTENERS, SCREWS, AND BOLTSORIGINALLY USED FOR THE AIRBAG SYSTEMCOMPONENTS HAVE SPECIAL COATINGS ANDARE SPECIFICALLY DESIGNED FOR THE AIRBAGSYSTEM. THEY MUST NEVER BE REPLACED WITHANY SUBSTITUTES. ANY TIME A NEW FASTENERIS 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 FACEDOWN.

DESCRIPTION AND OPERATION

AIRBAG MODULE

DRIVER SIDE

The a irbag modu le p rotect ive t r im cove r is t he

most v is ib le par t of th e dr iver s ide a i rbag sys tem.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 gwheel. Located under the airbag module tr im coverare the horn switch, th e a i rbag cushion, a nd the a i r-bag cushion supporting components. The airbag mod-u le includes a hous ing to wh ich the cush ion andinflator are attached and sealed. The airbag modulecannot be repaired, and must be replaced if deployedor in any way damaged.

The infla tor assembly is mounted to th e back of the airbag module. The inflator seals the hole in theairbag cushion so it can discharge the gas it producesd ir ect ly in to the cush ion when supp lied with the

proper electr ical signa l. The protective tr im cover isf i t ted to the f ront of the a i rbag module and forms adecorative cover in the center of th e steering wheel.Upon a i rbag deployment , th is cover wil l sp l it a t apredetermined breakout l ine.

PASSENGER SIDE

The ins t rument panel top pad is the most v is ib lepar t of t he passenger s ide a i rbag sys tem. Locatedunder the in s t rumen t panel t op pad a re the a irbagcushion and i t s suppor t ing components . The a i rbagmodule includes a housing to which the cushion andinflator are attached and sealed. The airbag module

cannot be repaired, and must be replaced if deployedor in any way damaged.

The infla tor assembly is mounted to th e back of the airbag module. The inflator seals the hole in theairbag cushion so it can discharge the gas it producesd ir ect ly in to the cush ion when supp lied with theproper e lect r ica l s ignal. The inst rument panel toppad above the glove box opening has a door and pre-determined breakout lines concealed beneath its dec-orative cover. Upon airbag deployment, t he top padwill split at the breakout lines and the door will pivotout of the way.

The a irbag modu le is s ecu red to two moun t ingbrackets beneath the ins t rument panel top pad andabove the glove box opening. The airbag front mount-ing bracket (closest t o the dash panel) is welded tot h e in s tr u m en t p a ne l a r m a tu r e. T he a ir ba g r ea rmounting bracket (closest to the passenger) is boltedto the ins t rument panel armature . Fol lowing an a i r-bag deployment , the a i rbag rear mount ing bracketand the ins t rument panel top pad must be replaced.If the airbag front mounting bracket is damaged, theinst rumen t panel a rma tu re a s sembly mus t a lso bereplaced.

8M - 2 PASSIVE RESTRAINT SYSTEMS ZG

GENERAL I NFORMATION (Continued)


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STORAGE

An ai rbag module must be s tored in i t s or ig inal ,special container until used for service. Also, it mustbe s tored in a clean, dry environment ; away fromsources of extreme heat, sparks, and high electricalenergy. Always place or store an airbag module on a

surface with i ts tr im cover or airbag side facing up,to min imize movemen t in case of an acciden ta ldeployment.

IMPACT SENSORThe impact sensor provides ver i fica t ion of the

direction and severity of an impact. One impact sen-sor i s used. I t i s located ins ide the Airbag ControlModule (ACM), which is secured to a bracket on thefloor pan transmission tunnel inside the vehicle.

The impact sensor is an accelerometer that sensesthe rate of deceleration. The microprocessor in theACM monitors the impact sensor signal. A pre-pro-

grammed decision algorithm in the microprocessordetermines when the decelera t ion ra te indicates animpact that i s severe enough to require a i rbag sys-tem protection. When the programmed conditions aremet, the ACM sends an electrical signal to deploy theairbag system components.

The impact sensor i s ca l ibra ted for the speci ficvehicle. The sensor is only serviced as a unit with theACM. The sensor cann ot be repaired or adjusted a nd,if faulty or damaged, the ACM unit must be replaced.

CLOCKSPRINGThe 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 unwindswith the steering wheel rotation.

The clockspring is used to ma intain a continuouselect r ica l ci rcui t between the wire harness and thedriver side airbag module, the horn switch, the vehi-cle speed con t rol swi tches, and the r emote r ad ioswitches on vehicles that are so equipped. There arealso separat e versions of the clockspring for modelsequipped with or without the optional speed propor-tional steering. Refer to Group 19 - Steering for moreinformation.

The clockspring must be properly centered when itis installed on the steering column following any ser-vice removal, or i t will be damaged. See the Clock-spr ing Center ing procedure in th is group for moreinformation.

The clockspring cannot be repaired. If the clock-spr ing is faul ty, damaged, or i f the a i rbag has beendeployed, the clockspring must be replaced.

AIRBAG CONTROL MODULEThe Airbag Control Module (ACM) conta ins the

impact sensor, and a microprocessor that monitorsthe impact sensor signals a nd the airbag system elec-trical circuits to determine t he system readiness. TheACM contains On-Board Diagnostics (OBD), and will

send an a i rbag lamp-on message to th e inst rumentcluster on the Chrysler Collision Detection (CCD)da ta bus to light t he a irbag indica tor lamp in theinstrument cluster when a monitored airbag systemfault occurs.

The ACM also contains an energy-storage capaci-tor. This capacitor stores enough electrical energy todeploy the airbags for up to one second following abattery disconnect or failure during an impact. Thepurpose of the capacitor is t o provide airbag systemprotection in a severe secondary impact, if the initialimpact has damaged or disconnected the battery, butwas not severe enough to deploy the airbags.

The ACM cannot be repai red and, i f damaged orfaulty, it must be replaced.

DIAGNOSIS AND TESTING

AIRBAG SYSTEMA DRB scan tool i s required for d iagnosis of the

airbag system. Refer to the proper Diagnostic Proce-dures manual for more information.

(1) Disconnect and isola te the bat tery negat ivecable. If the airbag has not been deployed, wait twominutes 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 locatedon the d r ive r s ide lower edge of the in st rumen tpanel, outboard of the steering column (Fig. 1).

(3) Turn the igni t ion switch to the On posit ion.Exit th e vehicle with the DRB. Use the latest versionof the proper DRB cartridge.

(4) After checking t hat nobody is inside the vehi-cle, reconnect the battery negative cable.

(5 ) Us ing the DRB, r ead and r ecord the act iveDiagnostic Trouble Code (DTC) data.

(6) Read and record any s tored DTC data .(7) Refer to th e proper Diagnostic Pr ocedures m an -

ual , i f any DTC is found in Step 5 or Step 6 .(8 ) E rase the s tored DTC da ta . I f any p rob lems

remain, the stored DTC data will not erase.(9) With the igni t ion switch s t il l in the On posi-

t ion, make sure nobody is in the vehicle.(10) From outs ide of the vehicle (away from the

airbag modules in case of an accidental deployment)turn the ignition switch to the Off posit ion for aboutt 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 instrumentcluster. I t should l ight for six to eight seconds, and


DESCRIPTION AND OPERATION (Continued)


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then go out. This indicates that the airbag system isfunctioning normally.

NOTE: If the airbag indicator lamp fails to light, orlights 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-mit t ed nea r the in fla tor on the back of an a irbagmodule. When carrying a non-deployed airbag mod-u le , t he t r im cover or a irbag s ide of t he modu leshould be pointed away from the body to minimizeinjury in the event of a n accidenta l deployment . I f the module is placed on a bench or any other surface,

the trim cover or airbag side of the module should beface up to min imize movemen t in the even t of anaccidental deployment.

In addition, the airbag system should be disarmedwhenever any s teer ing wheel , s teer ing column, orinst rument panel components require d iagnosis orservice. Failure to observe this warning could resultin accidenta l a i rbag deployment and poss ible per-sonal in jury. Refer to Group 8E - Ins t rument PanelSystems for addit ional service procedures on theinst rument panel. Refer to Group 19 - Steer ing for

additional service procedures on the steering wheeland steering column.

DEPLOYED

Any vehicle which is to be returned to use after anairbag deployment, mu st have both airbag modules,the clockspr ing, the inst rument panel top pad, an dthe passenge r s ide a irbag r ea r moun t ing b racketr eplaced. These componen t s will be damaged orweakened as a result of an airbag deployment, whichmay or may not be obvious dur ing a v isual inspec-tion, and are not intended for reuse.

Other veh icle componen t s shou ld be closelyinspected, but are to be replaced only as required bythe extent of the visible damage incurred.

CLEANUP PROCEDUREFollowing 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, therewil l a lso be t races of sodium hydroxide powder, achemical by-product of th e generant used for airbagdeployment. Since this powder can irri tate the skin,eyes, nose, or throat, be sure to wear safety glasses,rubbe r gloves , and a long-s leeved sh ir t du r ingcleanup (Fig. 2).

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

Fig. 1 16-Way Data Link Connector - Typical

16WAY DATA LINK CONNECTORBOTTOM OF INSTRU-MENT PANEL

Fig. 2 Wear Safety Glasses and Rubber Gloves


DIAGNOSIS AND T ESTING (Continued)


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

Be sure to vacuum the heater and air conditioningout le ts as wel l (Fig . 3) . Run the heater and a i r con-ditioning blower on the lowest speed setting and vac-uum any powder expelled from t he outlets. You may

need t o vacuum the interior of the vehicle a secondtime to r ecover all of the powder.

Place the deployed airbag modules in your vehicu-lar scrap pile.

REMOVAL AND IN STALLATI ON

AIRBAG MODULE


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 AIRBAGMODULE, RUBBER GLOVES, EYE PROTECTION,AND A LONG-SLEEVED SHIRT SHOULD BE WORN.THERE MAY BE DEPOSITS ON THE AIRBAG MOD-ULE AND OTHER INTERIOR SURFACES. IN LARGEDOSES, THESE DEPOSITS MAY CAUSE IRRITATIONTO THE SKIN AND EYES.

DRIVER SIDE

(1) Disconnect and isola te the bat tery negat ivecable . I f the a i rbag module has not been deployed,wait two minutes for the sys tem capaci tor to d is-charge before further service.

(2 ) F rom the under s ide of t he s t ee r ing whee l,

remove the three screws that secure the dr iver s ideairbag module to the steering wheel (Fig. 4).

(3) Pull the airbag module away from the steeringwheel far enough to unplug the a i rbag m odule andhorn switch wire harness connectors from the back of the airbag module.

(4) Remove the a i rbag module from the s teer ingwheel.

(5) If the airbag h as been deployed, see t he proce-dure for replacing t he clockspring in this group.

(6) When install ing t he airbag module, connect th eclockspring wire harn ess connector to t he module bypressing straight in on the connector. Be certain thatthe connector is fully engaged by observing the latch-ing clip arms on the top of the connector.

(7) I n st a ll t h e t h r ee a ir ba g m od u le m ou n t in gscrews and tighten to 10.2 Nm (90 in. lbs.) .

(8) Do not connect the bat tery negat ive cable a tthis t ime. See Airbag System in Diagnosis and Test-ing for the proper procedures.

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,the instrument panel top pad and passenger side air-bag rear mounting bracket must be replaced. Refer t oGroup 8E - Instrument Panel Systems for the proce-dures required for instrument panel top pad service.


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

DRIVERS AIRBAG MODULEAIRBAG WIRE HORN SWITCHWIRESCREWSFWD


SERVI CE PROCEDURES (Continued)


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(2) Remove the instrument panel top pad. Refer toGroup 8E - Instrument Panel Systems for the proce-dures.

(3) Remove the two screws that secure the a i rbagmodule t o the front airbag mounting bracket (Fig. 5).

(4) Remove the two screws that secure the a i rbagmodule to the rear airbag mounting bracket.

(5) Unplug the a i rbag module wire harness con-n ect or a n d r em ove t h e a ir ba g m od u le fr om t h einstrument panel.

(6) If the airbag has been deployed, see the proce-dure for r eplacing the passenge r s ide r ea r a irbagmounting bracket in this group.

WARNING: USE EXTREME CARE TO PREVENTANY FOREIGN MATERIAL FROM ENTERING THEPASSENGER SIDE AIRBAG MODULE, OR BECOM-

ING ENTRAPPED BETWEEN THE INSTRUMENTPANEL TOP PAD AND THE PASSENGER SIDE AIR-BAG MODULE. FAILURE TO OBSERVE THIS WARN-ING COULD RESULT IN OCCUPANT INJURIESUPON AIRBAG DEPLOYMENT.

(7) Ins ta l l and t ighten the a i rbag module mount-ing screws to 11.75 Nm (105 in. lbs.).

NOTE: If the airbag module mounting screws can-not be tightened to the specified torque value,replace the screws with the oversized screws spec-ified in the Mopar Parts Catalog.

(8) Reverse t he remaining r emoval procedures tocomplete the installation.

(9) When re ins ta l ling the passenger s ide a i rbagmodule, be cer ta in that the a i rbag module wire har-ness connector latches are fully engaged.

(10) Do not connect t he battery negative cable atthis t ime. See Airbag System in Diagnosis and Test-ing for the proper procedures.

DRIVER SIDE AIRBAG TRIM COVER AND HORNSWITCH


PLEX ELECTROMECHANICAL UNIT. BEFORE

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

THE HORN SWITCH IS INTEGRAL TO THE AIR-BAG MODULE TRIM COVER. SERVICE OF THISCOMPONENT SHOULD BE PERFORMED ONLY BYCHRYSLER-TRAINED AND AUTHORIZED DEALERSERVICE TECHNICIANS. FAILURE TO TAKE THEPROPER PRECAUTIONS OR TO FOLLOW THEPROPER PROCEDURES COULD RESULT IN ACCI-DENTAL, INCOMPLETE, OR IMPROPER AIRBAGDEPLOYMENT AND POSSIBLE PERSONAL INJURY.


(2) R em ove t h e d r ive r s id e a ir ba g m od u le a sdescribed in this group.

(3) Remove the two plastic horn switch feed wireretainers from the studs on the airbag housing (Fig.6).

(4) Unplug the horn swi tch ground wire f rom theairbag module lower trim cover retainer.

(5 ) Remove the fou r nu t s t ha t s ecu re the uppe rand lower t r im cover re ta iners to t he s tuds on th eairbag housing (Fig. 7).

(6) Remove the upper a nd lower tr im cover retain-ers from the airbag housing studs.

(7) Disengage the five trim cover locking blocksfrom the l ip around the outs ide edge of the a i rbaghousing and remove the housing from the cover (Fig.8).

WARNING: USE EXTREME CARE TO PREVENTANY FOREIGN MATERIAL FROM ENTERING THEDRIVER SIDE AIRBAG MODULE, OR BECOMINGENTRAPPED BETWEEN THE DRIVER SIDE AIRBAGMODULE TRIM COVER AND THE DRIVER SIDE AIR-BAG MODULE. FAILURE TO OBSERVE THIS WARN-ING COULD RESULT IN OCCUPANT INJURIESUPON AIRBAG DEPLOYMENT.

Fig. 5 Passenger Side Airbag Module Remove/Install

PASSENGERS AIRBAG MODULE REARMOUNTINGBRACKETFRONT MOUNTING BRACKETWIRING TROUGHMOUNTING SCREWS


REMOVAL AND INSTALLATION (Continued)


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(8 ) Wh en in s ta llin g t h e t r im cover a n d h or nswitch, be cer ta in that the locking blocks are fu l lyengaged on the l ip of the airbag housing (Fig. 9).

(9) When installing the upper and lower trim coverre ta iners , be cer ta in that the tabs on each re ta inerare engaged in the re ta iner s lots of the t r im cover(Fig. 8).

(10) Ins t a ll and t igh ten the t r im cover r e t a ine rnuts to 10 Nm (90 in. lbs.) .

(11) Reverse t he remaining r emoval procedures tocomplete the installation, but do not connect t he bat-tery negative cable at this t ime. See Airbag Systemin Diagnosis and Testing for the proper procedures.

PASSENGER SIDE AIRBAG REAR MOUNTINGBRACKET

(1) Remove the passenger s ide a i rbag module asdescribed in this group.

Fig. 6 Horn Switch Feed Wires Remove/Install

HORN SWITCH FEEDWIREHORNSWITCHGROUNDWIREWIRE RETAINERS

Fig. 7 Airbag Trim Cover Retainers Remove/Install

INFLATOR UPPERRETAINERAIRBAGHOUSINGSTUDS NUT (4)LOWERRETAINERTRIM COVER

Fig. 8 Airbag Trim Cover Remove/Install

RETAINER SLOTS TRIM COVERLOCKING BLOCKSRETAINER SLOTSHORN SWITCH

Fig. 9 Airbag Trim Cover Locking BlocksInstalled

LIPTRIM COVERHORN SWITCHAIRBAG HOUSINGLOCKING BLOCK




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(2) Remove the screws that secure the instrumentpanel wire harness t rough to the a i rbag rear mount-ing bra cket.

(3) Remove the heater-A/C control from the instru-men t panel. Refe r t o Group 24 - Hea t ing and AirConditioning for the procedures.

(4) Reach through the heater-A/C control openingin th e ins t rument panel to remove the two bol ts thatsecure the inboard end of the a i rbag rear mount ingbracket to the inst rument panel armatu re (Fig. 10).

(5) Remove the two bolts that secure the outboardend of the a irbag r ea r moun t ing b racket from thepassenger side outboard end of the instrument panelarma ture (Fig. 11).

(6 ) R em ove t h e a ir ba g r ea r m ou n t in g b ra ck et

through the lower opening of the ins t rument panelarmature, outboard end first .

(7 ) Rever se the r emova l p rocedures to in s t a ll.Tighten the mount ing bol ts to 11.75 Nm (105 in .lbs.).

AIRBAG CONTROL MODULE

WARNING: THE AIRBAG CONTROL MODULE CONTAINS

THE IMPACT SENSOR, WHICH ENABLES THE SYS-TEM TO DEPLOY THE AIRBAG. BEFORE ATTEMPT-

ING TO DIAGNOSE OR SERVICE ANY AIRBAGSYSTEM 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 SUREWAY 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 IMPACTSENSOR OR AFFECT ITS CALIBRATION. IF AN AIR-BAG CONTROL MODULE IS ACCIDENTALLYDROPPED DURING SERVICE, THE MODULE MUSTBE SCRAPPED AND REPLACED WITH A NEW UNIT.

(1) Disconnect and isola te the bat tery negat ive

cable. If the airbag has not been deployed, wait twominutes for the system capacitor to discharge beforefurther service.

(2) I f the vehicle i s equipped with an automat ictran smission, pu ll the tran smission shift lever han dlestraight up firmly and quickly to remove the handle.I f the vehicle i s equipped with a manual t ransmis-s ion, remove the shift lever knob by r emoving thebezel and nut from the top of the knob.

(3) Release the aut omatic tr ansmission shift indi-cator bezel or the manual t ransmiss ion shi ft leverboot , and the t ransfer case shift indicator bezel byprying between the edge of the bezel or boot and thefloor console with a t r im s t ick or another suitablewide flat-bladed tool (Fig. 12).

(4) Raise the shift indicator bezel(s) far enoughfrom the console to remove the lamp sockets from thebezel(s), then remove the bezel(s) and/or boot fromthe console.

(5) Remove th e screws th at secur e th e floor consoleto the console and pa rk ing b rake l ever moun t ingbrackets.

(6) Remove the floor console from the floor pantransmission tunnel.

(7) Unplug th e Airbag Contr ol Module (ACM) wireharness connector. To unplug the connector, first pullthe two white locks out about 3 mm (0.125 in.) fromeach side of the connector (Fig. 13). Then squeeze thetwo connector la t ch t abs between the thumb andforefinger, while pulling the connector out from theACM.

NOTE: Always remove and replace the airbag con-trol module and its mounting bracket as a unit.Replacement modules include a replacementmounting bracket. Do not transfer the module toanother mounting bracket.

Fig. 10 Inboard Mounting Bolts Remove/Install

A/C HEATERCONTROL OPENINGREAR MOUNTINGBRACKETREAR BRACKET BOLTS

Fig. 11 Outboard Mounting Bolts Remove/Install

PASSENGER SIDE END OFINSTRUMENT PANEL REAR BRACKET BOLTSREAR MOUNTING BRACKET




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(8) Remove t he four screws that secure the ACMmounting bracket to the floor pan transmission tun-nel (Fig. 14).

(9) Remove the ACM an d mount ing bracket as auni t .

(10) When ins ta ll ing the ACM, posit ion the uni twith the ar row on the ACM h ousing point ing for-ward.

(11) Attach the ACM to t he floor pan tran smissiontunnel with the four mount ing screws. Tighten themounting screws to 10.7 Nm (95 in. lbs.).

(12) P lug in the wire ha rness connector to theACM. Be certain that the connector latches are fullyengaged and that the connector locks are pushed in.

(13) Reverse the remaining removal procedures tocomplete the installation.

(14) Do not connect t he battery negative cable atthis t ime. See Airbag System in Diagnosis and Test-ing for the proper procedures.

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 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.

Fig. 12 Floor Console Components

SHIFTER INDICATORTRANSFER CASE SHIFTERBEZEL TRANSFER CASE SHIFTERINDICATORPARKING BRAKEBEZEL FULL FLOORCONSOLEPARKING BRAKECONSOLEBRACKET

Fig. 13 Airbag Control Module Connector Removal

AIRBAG CONTROL MODULEPULL TWO LOCKS OUT

Fig. 14 Airbag Control Module Remove/Install

SCREWS (4)AIRBAG CONTROL MODULE PARKING BRAKE LEVERFLOOR PAN TRANSMIS-SION TUNNEL




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(1) Turn the steering wheel until the front wheelsare in the straight-ahead posit ion before start ing theprocedure.

(2) Disconnect and isola te the bat tery negat ivecable. If the airbag has not been deployed, wait twominutes for the system capacitor to discharge before

further service.(3) Remove the airbag module as described in thisgroup.

(4) I f the vehic le i s so equipped, unplug the wireharness connectors for the vehicle speed controlswitches and the remote radio switches.

(5 ) Remove the s t ee r ing whee l w ith a s t ee r ingwheel puller (Special Tool C-3428B).

(6) Remove th e upper and lower steering columnshrouds to gain access to the clockspr ing wire har-ness connectors (Fig. 15).

(7) Unplug the wire harness connectors from theclockspring.

(8) Remove the lower fixed column shroud.(9) Unplug the wire harn ess connector between t he

clockspr ing and the ins t rument panel wire h arness ,located near the base of the steering column.

(10) To remove the clockspring, l ift the locatingfingers of the clockspring assembly from the steeringcolumn as necessary. The clockspr ing cannot berepaired. I t must be replaced if faulty, or if the air-bag has been deployed.

(11 ) When ins t a lling the clockspr ing, snap theclockspring onto the steering column. If the clock-spring is not properly posit ioned, see Clockspring

Centering in this group before install ing the steeringwheel.

(12) Plug the clockspring wire har ness connectorin to the inst rument panel wire harness . Be cer ta intha t t he wire ha rness loca tor clip s a re p roper lyseated on the outs ide of the wir ing t rough and that

the connector latches are fully engaged.(13) Reinstall the st eering column shr ouds. Be cer-ta in that the clockspr ing wire harness i s ins ide t heshrouds.

(14) Th e fr on t wh eels s hou ld s till be in t h es t ra ight-ahead posit ion. Ins ta ll the s teer ing wheelbeing certain to fi t the flats on the hub of the steer-ing wheel onto the format ions on the inside of theclockspring. Pu ll th e wire harn esses from the clock-spr ing th rough the upper and lower holes in thes teer ing wheel hub. Tighten the s teer ing wheel nutto 61 Nm (45 f t . lbs. ). Be cer ta in not to p inch thewir ing between the s teer ing wheel and the nut .

(15) If the vehicle is so equipped, plug in the vehi-cle speed control switch and remote radio switch wireharness connectors.

(16) Install the airbag module as described in thisgroup.

ADJUSTMENTS

CLOCKSPRING CENTERINGI f the rota t ing tape within the clockspr ing is not

posit ioned properly in relation to the steering wheeland the front wheels, the clockspring may fail during

use . The clockspr ing must be centered i f i t i s notknown to be p roper ly pos it ioned, or if t he fron twheels were moved from the straight-ahead posit ionwith 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 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. FAILURETO DO THIS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONALINJURY.

(1) Turn the steering wheel until the front wheelsare in the straight-ahead posit ion before start ing thecentering procedure.

Fig. 15 Steering Column Shrouds Remove/Install- Typical

NUT TILT LEVER UPPER SHROUDLOWER SHROUDSCREWSCLOCK SPRINGSTEERINGWHEEL




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(2) Disconnect and isola te the bat tery negat ivecable. If the airbag has not been deployed, wait twominutes for the system capacitor to discharge beforefurther service.

(3) Remove the airbag module as described in thisgroup.

(4) I f the vehic le i s so equipped, unplug the wirehar ness connectors from the vehicle speed contr olswitches and the remote radio switches.

(5 ) Remove the s t ee r ing whee l w ith a s t ee r ingwheel puller (Special Tool C-3428B).

(6) Depress the two plastic clockspring auto-lock-ing tabs (Fig. 16).

(7) Keeping the locking mechanism disengaged,rotate the clockspring rotor clockwise to the end of its travel. Do not apply excessive torque.

(8) From the end of the clockwise t ravel, rotate therotor two and one-half t urns counterclockwise. Thehorn wire harness should end up a t the top, and the

ai rbag wire har ness a t the bot tom.(9) The front wheels should sti ll be in t he str aight-

ahead posit ion. Install the steering wheel being cer-ta in to f i t the f la ts on the hub of the s teer ing wheelonto the formations on the inside of the clockspring.Pull t he wire har nesses from the clockspring th roughthe upper and lower holes in the steering wheel hub.Tighten the steering wheel nut to 61 Nm (45 ft. lbs.).Be certain not to pinch any of the wiring between t hes teer ing wheel and the nut .

(10) If the vehicle is so equipped, plug in the vehi-cle speed control switch and remote radio switch wireharness connectors.

(11) Install the airbag module as described in thisgroup.

Fig. 16 Clockspring Auto-Locking Tabs


ADJUSTMENTS (Continued)


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08M Passive Restraint Systems

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