Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Air Bag Control Module: Service and Repair

Negative Battery Cable:




WARNING: THE ACM CONTAINS THE IMPACT SENSOR WHICH ENABLES THE SYSTEM TO DEPLOY THE AIRBAGS. TO AVOID ACCIDENTAL DEPLOYMENT, NEVER CONNECT ACM ELECTRICALLY TO THE SYSTEM WHILE VEHICLE BATTERY IS CONNECTED. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE CABLE BEFORE BEGINNING ANY AIRBAG SYSTEM COMPONENT SERVICE PROCEDURES. THIS WILL DISABLE THE AIRBAG SYSTEM. FAILURE TO DISCONNECT THE BATTERY COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY. ALLOW SYSTEM CAPACITOR TO DISCHARGE FOR TWO MINUTES BEFORE REMOVING AIRBAG COMPONENTS.

REMOVAL
1. Remove forward lower console from instrument panel.

Heat Duct:




2. Remove screw holding lower heat duct to instrument panel support.
3. Remove heat duct from instrument panel.

Instrument Panel Supports:




4. Remove two bolts holding top of right support to instrument panel.
5. Remove two bolts holding bottom of right support to floor pan.
6. Separate right instrument panel support from vehicle.

ACM Connectors:




7. Disconnect two connectors from ACM.

ACM Bracket Assembly:




8. Remove four bolts holding the ACM bracket assembly to floor.
9. Remove the ACM w/bracket assembly from vehicle.

INSTALLATION

WARNING: DO NOT REMOVE THE BOLTS HOLDING THE ACM TO THE ACM BRACKET. THESE BOLTS ARE SAFETY TORQUED AT THE MANUFACTURING FACILITY AND SHOULD NOT BE REMOVED FOR ANY REASON. THE NEW ACM WILL COME WITH A NEW BRACKET INSTALLED.

CAUTION:
USE CORRECT SCREWS WHEN INSTALLING THE ACM

For installation, reverse the above procedures. Attach the ACM bracket assembly to vehicle with the proper screws and tighten to 8.5 to 11.9 Nm (75 to 105 in. lbs.) torque. Do not connect battery negative cable. Refer to Diagnosis and Testing for Airbag System Test procedures.