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.

  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 support bracket from the instrument panel. Refer to Instrument Panel Center Support Bracket in the Removal and Installation section of Group 8E - Instrument Panel Systems for the procedures.

(3) Remove the screw that secures the instrument panel wire harness ground eyelet to the left side of the mount that is welded onto the floor panel transmission tunnel (Fig. 12).

(4) Disconnect the instrument panel wire harness connector from the Airbag Control Module (ACM). To disconnect the instrument panel wire harness connector from the ACM: (a) Slide the red Connector Position Assurance (CPA) lock on the top of the connector toward the side of the vehicle.

(b) Depress the connector latch tab and pull the connector straight away from the ACM connector receptacle.

Fig. 12 Airbag Control Module Remove/Install

1 - INSTRUMENT PANEL WIRE HARNESS

2 - FLOOR PANEL TRANSMISSION TUNNEL

3 - GROUND EYELET

4 - SCREW

5 - MOUNT

6 - SCREW(3)

7 - AIRBAG CONTROL MODULE

(5) Remove the three screws that secure the ACM to the mount that is welded onto the floor panel transmission tunnel.

(6) Remove the ACM from the mount on the floor panel transmission tunnel.

INSTALLATION

(1) Carefully position the ACM to the mount that is welded onto 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 screws that secure the ACM to the mount that is welded onto the floor panel transmission tunnel. Tighten the screws to 11.8 N*m (105 in. lbs.).

(3) Install and tighten the screw that secures the instrument panel wire harness ground eyelet to the left side of the mount that is welded onto the floor panel transmission tunnel. Tighten the screw to 3.4 N*m (30 in. lbs.).

(4) Reconnect the instrument panel wire harness connector to the ACM connector receptacle. Be certain that the connector latch and the red CPA lock are fully engaged.

(5) 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.