Air Bag Control Module: Service and Repair

RESTRAINTS CONTROL MODULE (RCM)







Removal and Installation

WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- The restraints control module (RCM) orientation is critical for proper air bag supplemental restraint system (SRS) operation. If a vehicle equipped with an SRS system has been involved in a collision in which the center tunnel area has been damaged, inspect the mounting and bracket for deformation. If damaged, the RCM must be replaced whether or not the air bags have deployed. In addition, make sure the area of the RCM mounting is restored to its original condition.
- Vehicle sensor orientation is critical for proper system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
- The tightening torque of the air bag restraints control module (RCM) retaining nuts is critical for correct system operation.

CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage can result.

NOTE:
- The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- When installing a new restraints control module (RCM), always make sure the correct RCM is being installed. If an incorrect RCM is installed, erroneous DTCs will result.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and carry out the diagnostic procedure again.
- The restraints control module is located on top of the center transmission tunnel under the instrument panel.

1. Depower the system.







2. Remove the center instrument panel to center console finish panel.
1 Pull up and position the center console finish panel away.
2 Pull out at the top and remove the center instrument panel to center console finish panel.
- If equipped with heated seats, disconnect the electrical connectors.







3. Position the lower center instrument panel finish panel aside.
1 Remove the screws.
2 Pull out to release the retaining clips.
- Position the lower center instrument panel finish panel aside.

4. WARNING: The tightening torque of the air bag restraints control module (RCM) retaining bolts is critical for correct system operation.

Remove the 3 RCM bolts.
- To install, tighten to 12 Nm (9 lb-ft).







5. NOTE: The restraints control module is located on top of the center transmission tunnel under the instrument panel.

Disconnect the restraints control module (RCM) electrical connectors and remove the RCM.
1 Slide and disengage the RCM electrical connector locking clips.
2 Depress the locking tab. Disconnect the RCM electrical connectors and remove the RCM.

6. To install, reverse the removal procedure.
7. Repower the system.