Air Bag Control Module: Service and Repair

REMOVAL

WARNING:
- DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL,STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
- THE AIRBAG CONTROL MODULE CONTAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE AIRBAGS. 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.

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.

Fig.5 Center Console Bracket Remove/Install:

3. Remove the nut that secures the center console bracket to the stud on the floor panel transmission tunnel in front of the Airbag Control Module (ACM).
4. Remove the center console bracket from the stud on the floor panel transmission tunnel.

Fig.6 Airbag Control Module Connector:

5. Disconnect the instrument panel wire harness connector for the ACM from the ACM connector receptacle. 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 left side of the vehicle.
b. Depress the connector latch tab and pull the connector straight away from the ACM connector receptacle.

Fig.7 Airbag Control Module Remove/Install:

6. Remove the four screws that secure the ACM to the mount that is welded onto the floor panel transmission tunnel.
7. Remove the ACM from the ACM mount on the floor panel transmission tunnel.

INSTALLATION

WARNING:
- DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL,STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
- THE AIRBAG CONTROL MODULE CONTAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE AIRBAGS. NEVER STRIKE OR KICK THE AIRBAG CONTROL MODULE, AS IT CAN DAMAGE THE IMPACT SENSOR OR EFFECT 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.

1. Carefully position the ACM to the mount that is welded onto the floor panel transmission tunnel. The bottom of the ACM housing is keyed. When the ACM is correctly positioned, the bottom of the housing will fit flush with the mount and the arrow on the top of the housing will be pointed forward in the vehicle.
2. Install and tighten the four screws that secure the ACM to the mount that is welded onto the floor panel transmission tunnel. Tighten the screws to 7.9 Nm (70 in. lbs.).
3. Reconnect the instrument panel wire harness connector for the ACM to the ACM connector receptacle. Be certain that the connector latch and the red CPA lock are fully engaged.
4. Reinstall the center console bracket onto the stud on the floor panel transmission tunnel in front of the ACM.
5. Install and tighten the nut that secures the center console bracket to the stud on the floor panel transmission tunnel. Tighten the nut to 28.2 Nm (250 in. lbs.).
6. Reinstall the center floor console onto the floor panel transmission tunnel.
7. Do not reconnect the battery negative cable at this time. The airbag system verification test procedure should be performed following service of any airbag system component. (Refer to RESTRAINTS - STANDARD PROCEDURE - VERIFICATION TEST).