Jeep Cherokee (XJ): Passenger side airbag door. Airbag control module. Clockspring

Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Passive restraint systems > Removal and installation > Passenger side airbag door. Airbag control module. Clockspring

Passenger side airbag door

WARNING:

  •  THE AIRBAG SYSTEM IS A SENSITIVE, COMPLEX ELECTROMECHANICAL UNIT. BEFORE ATTEMPTING TO DIAGNOSE OR SERVICE ANY AIRBAG SYSTEM OR RELATED STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENTS YOU MUST FIRST DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE. THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE FURTHER SYSTEM SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO DO THIS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
  •  WHEN REMOVING A DEPLOYED AIRBAG MODULE, RUBBER GLOVES, EYE PROTECTION, AND A LONG-SLEEVED SHIRT SHOULD BE WORN. THERE MAY BE DEPOSITS ON THE AIRBAG MODULE AND OTHER INTERIOR SURFACES. IN LARGE DOSES, THESE DEPOSITS MAY CAUSE IRRITATION TO THE SKIN AND EYES.

REMOVAL

(1) Disconnect and isolate the battery negative cable. If either of the airbags has not been deployed, wait two minutes for the system capacitor to discharge before further service.

(2) Remove the passenger side airbag module from the instrument panel. Refer to Passenger Side Airbag Module in the Removal and Installation section of this group for the procedures.

(3) Place the passenger side airbag module on a suitable work surface. Slide the passenger side airbag door sideways on the airbag module until the keyed holes in the returns of the upper and lower airbag door mounting flanges clear the three tabs on the top and the bottom of the airbag module housing (Fig. 11).

(4) Disengage the keyed holes in the returns of the upper and lower airbag door mounting flange returns from the three tabs on the top and the bottom of the passenger side airbag module housing.

(5) Remove the passenger side airbag door from the airbag module.

Fig. 11 Passenger Side Airbag Door Remove/Install
Fig. 11 Passenger Side Airbag Door Remove/Install

1 - CONNECTOR
2 - AIRBAG MODULE HOUSING
3 - AIRBAG DOOR FLANGE
4 - AIRBAG DOOR
5 - TABS
6 - KEYED SLOTS

INSTALLATION

WARNING:

  •  USE EXTREME CARE TO PREVENT ANY FOREIGN MATERIAL FROM ENTERING THE PASSENGER SIDE AIRBAG MODULE, OR BECOMING ENTRAPPED BETWEEN THE AIRBAG CUSHION AND THE PASSENGER SIDE AIRBAG DOOR. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN OCCUPANT INJURIES UPON AIRBAG DEPLOYMENT.
  •  THE PASSENGER SIDE AIRBAG DOOR MUST NEVER BE PAINTED. REPLACEMENT AIRBAG DOORS ARE SERVICED IN THE ORIGINAL COLORS. PAINT MAY CHANGE THE WAY IN WHICH THE MATERIAL OF THE AIRBAG DOOR RESPONDS TO AN AIRBAG DEPLOYMENT. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN OCCUPANT INJURIES UPON AIRBAG DEPLOYMENT.

(1) Position the passenger side airbag door over the airbag module.

(2) Engage the keyed holes in the returns of the upper and lower airbag door mounting flanges with the three tabs on the top and the bottom of the passenger side airbag module housing.

(3) Slide the passenger side airbag door sideways until the keyed holes in the returns of the upper and lower airbag door mounting flanges are locked onto the three tabs on the top and the bottom of the airbag module housing.

(4) Install the passenger side airbag module onto the instrument panel. Refer to Passenger Side Airbag Module in the Removal and Installation section of this group for the procedures.

Airbag control module

WARNING:

  •  THE AIRBAG CONTROL MODULE CONTAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE AIRBAG. BEFORE ATTEMPTING TO DIAGNOSE OR SERVICE ANY AIRBAG SYSTEM OR RELATED STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENTS YOU MUST FIRST DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE. THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE FURTHER SYSTEM SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO DO THIS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
  •  NEVER STRIKE OR KICK THE AIRBAG CONTROL MODULE, AS IT CAN DAMAGE THE IMPACT SENSOR OR AFFECT ITS CALIBRATION. IF AN AIRBAG CONTROL MODULE IS ACCIDENTALLY DROPPED DURING SERVICE, THE MODULE MUST BE SCRAPPED AND REPLACED WITH A NEW UNIT. ALWAYS REINSTALL THE AIRBAG CONTROL MODULE PROTECTIVE COVER. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN ACCIDENTAL, INCOMPLETE, OR IMPROPER AIRBAG DEPLOYMENT AND POSSIBLE OCCUPANT INJURIES.

REMOVAL

(1) Disconnect and isolate the battery negative cable. If either of the airbags has not been deployed, wait two minutes for the system capacitor to discharge before further service.

(2) Remove the center floor console from the floor panel transmission tunnel. Refer to Full Floor Console in the index of this service manual for the location of the proper center floor console removal procedures.

(3) Remove the console rear duct from the floor panel transmission tunnel. Refer to Ducts And Outlets in the index of this service manual for the location of the proper console rear duct removal procedures.

(4) Remove the three screws that secure the center floor console rear mounting bracket to the floor panel transmission tunnel.

(5) Remove the center floor console rear mounting bracket from the floor panel transmission tunnel.

(6) Disconnect the instrument panel wire harness connector from the Airbag Control Module (ACM) (Fig. 12). To disconnect the instrument panel wire harness connector from the ACM: (a) Squeeze the two connector latch tabs between the thumb and forefinger.

(b) Pull the connector straight away from the ACM connector receptacle.

Fig. 12 Airbag Control Module Remove/Install
Fig. 12 Airbag Control Module Remove/Install

1 - NUT AND WASHER (3)
2 - INSTRUMENT PANEL WIRE HARNESS CONNECTOR
3 - ACM MOUNTING BRACKET
4 - SCREW (4)
5 - AIRBAG CONTROL MODULE

(7) Remove the three nuts that secure the ACM to the weld studs on the ACM mounting bracket on the floor panel transmission tunnel.

(8) Remove the ACM from the ACM mounting bracket on the floor panel transmission tunnel.

INSTALLATION

(1) Carefully position the ACM onto the ACM mounting bracket on the floor panel transmission tunnel. When the ACM is correctly positioned the arrow on the ACM label will be pointed forward in the vehicle.

(2) Install and tighten the three nuts that secure the ACM to the weld studs on the ACM mounting bracket on the floor panel transmission tunnel.

Tighten the nuts to 7.3 N·m (65 in. lbs.).

(3) Reconnect the instrument panel wire harness connector to the ACM connector receptacle. Be certain that the connector latches are fully engaged.

(4) Position the center floor console rear mounting bracket onto the floor panel transmission tunnel over the ACM.

(5) Install and tighten the three screws that secure the center floor console rear mounting bracket to the floor panel transmission tunnel. Tighten the screws to 1.1 N·m (10 in. lbs.).

(6) Install the console rear duct onto the floor panel transmission tunnel. Refer to Ducts And Outlets in the index of this service manual for the location of the proper console rear duct installation procedures.

(7) Install the center floor console onto the floor panel transmission tunnel. Refer to Full Floor Console in the index of this service manual for the location of the proper center floor console installation procedures.

(8) Do not reconnect the battery negative cable at this time. Refer to Airbag System in the Diagnosis and Testing section of this group for the proper procedures.

Clockspring

The clockspring cannot be repaired. It must be replaced if faulty or damaged, or if the driver side airbag has been deployed.

WARNING: THE AIRBAG SYSTEM IS A SENSITIVE, COMPLEX ELECTROMECHANICAL UNIT. BEFORE ATTEMPTING TO DIAGNOSE OR SERVICE ANY AIRBAG SYSTEM OR RELATED STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENTS YOU MUST FIRST DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE. THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE FURTHER SYSTEM SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO DO THIS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

REMOVAL

NOTE: Before starting this procedure, be certain to turn the steering wheel until the front wheels are in the straight-ahead position.

(1) Place the front wheels in the straight-ahead position.

(2) Remove the driver side airbag module from the steering wheel. Refer to Driver Side Airbag Module in the Removal and Installation section of this group for the procedures.

(3) If the vehicle is so equipped, disconnect the upper clockspring wire harness connector from the steering wheel wire harness for the vehicle speed control switches located within the hub cavity of the steering wheel.

(4) Remove the nut that secures the steering wheel armature to the steering column upper shaft, which is located within the hub cavity of the steering wheel.

(5) Pull the steering wheel off of the steering column upper shaft spline using a steering wheel puller (Special Tool C-3428-B).

(6) Remove the steering column opening cover from the instrument panel. Refer to Steering Column Opening Cover in the Removal and Installation section of Group 8E - Instrument Panel Systems for the procedures.

(7) If the vehicle is so equipped, move the tilt steering column to the fully raised position.

(8) Remove the three screws that secure the lower steering column shroud to the upper shroud (Fig. 13).

Fig. 13 Steering Column Shrouds Remove/Install
Fig. 13 Steering Column Shrouds Remove/Install

1 - UPPER SHROUD
2 - SCREW (3)
3 - LOWER SHROUD
4 - STEERING WHEEL

(9) If the vehicle is equipped with a standard nontilt steering column, loosen the two upper steering column mounting nuts. If the vehicle is equipped with the optional tilt steering column, move the tilt steering column to the fully lowered position.

(10) Remove both the upper and lower shrouds from the steering column.

(11) Disconnect the two instrument panel wire harness connectors from the lower clockspring connector receptacles (Fig. 14).

(12) The multi-function switch water shield bracket on the top of the steering column has a small access window which allows access to the upper clockspring latch with a small screwdriver (Fig. 15).

Gently pry both plastic latches of the clockspring assembly to release them from the steering column upper housing.

Fig. 14 Clockspring Remove/Install
Fig. 14 Clockspring Remove/Install

1 - CLOCKSPRING
2 - LATCHES
3 - WIRE HARNESS
4 - TURN SIGNAL SWITCH LEVER
5 - WATER SHIELD BRACKET
6 - STEERING COLUMN
7 - WIPER SWITCH LEVER

NOTE: If the clockspring plastic latches are broken, be certain to remove the broken pieces from the steering column upper housing

Fig. 15 Upper Clockspring Latch Access Window
Fig. 15 Upper Clockspring Latch Access Window

1 - UPPER CLOCKSPRING LATCH ACCESS WINDOW
2 - CLOCKSPRING
3 - WATER SHIELD AND BRACKET

(13) Remove the clockspring from the steering column.

The clockspring cannot be repaired. It must be replaced if faulty or damaged, or if the driver side airbag has been deployed.

(14) If the removed clockspring is to be reused, lock the clockspring rotor to the clockspring case to maintain clockspring centering until it is reinstalled on the steering column. This can be done by inserting a stiff wire through the small index hole located at about the 11 o'clock position in the centered clockspring rotor and case. Refer to Clockspring Centering in the Adjustments section of this group for an illustration of the clockspring index hole. Bend the wire over after it has been inserted through the index hole to prevent it from falling out.

INSTALLATION

If the clockspring is not properly centered in relation to the steering wheel, steering shaft and steering gear, it may be damaged. Refer to Clockspring Centering in the Adjustments section of this group before installing or reinstalling a clockspring.

Service replacement clocksprings are shipped precentered and with a locking pin installed. This locking pin should not be removed until the clockspring has been installed on the steering column. If the locking pin is removed before the clockspring is installed on a steering column, the clockspring centering procedure must be performed.

NOTE: Before starting this procedure, be certain that the front wheels are still in the straight-ahead position.

(1) If the removed clockspring is being reused, remove the wire from the index hole that is locking the clockspring rotor to the clockspring case to maintain clockspring centering.

(2) Be certain that the turn signal switch stalk is in the neutral position, then carefully slide the centered clockspring down over the steering column upper shaft until the clockspring latches engage the steering column upper housing.

(3) If a new clockspring has been installed, remove the locking pin that is securing the clockspring rotor to the clockspring case and maintaining clockspring centering.

(4) Reconnect the two instrument panel wire harness connectors to the lower clockspring connector receptacles. Be certain that the connector latches are fully engaged.

(5) Position the steering column shrouds on the steering column.

(6) Install and tighten the three screws that secure the lower steering column shroud to the upper shroud. Tighten the screws to 2 N·m (18 in. lbs.).

(7) Install the steering column opening cover onto the instrument panel. Refer to Steering Column Opening Cover in the Removal and Installation section of Group 8E - Instrument Panel Systems for the procedures.

(8) Install the steering wheel onto the steering column upper shaft. Be certain to index the flats on the hub of the steering wheel with the formations on the inside of the clockspring rotor. Pull the upper clockspring wire harnesses through the lower hole in the steering wheel armature.

(9) Install and tighten the steering wheel mounting nut. Tighten the nut to 61 N·m (45 ft. lbs.). Be certain not to pinch the wire harnesses between the steering wheel and the nut.

(10) If the vehicle is so equipped, reconnect the upper clockspring wire harness connector to the steering wheel wire harness for the vehicle speed control switches.

(11) Install the driver side airbag module onto the steering wheel. Refer to Driver Side Airbag Module in the Removal and Installation section of this group for the procedures.

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