Air Bag Control Module: Service and Repair

Restraints Control Module (RCM)

NOTE: Parking brake control and selector lever partially omitted for clarity.











Removal

WARNING: If a vehicle has been in a crash, inspect the restraints control module (RCM) and the impact sensor (if equipped) mounting areas for deformation. If damaged, restore the mounting areas to the original production configuration. A new RCM and sensors must be installed whether or not the air bags have deployed. Failure to follow these instructions may result in serious personal injury or death in a crash.

NOTICE: When installing a new Restraints Control Module (RCM), it is necessary to carry out Programmable Module Installation (PMI). System failure may occur if PMI is not performed. For additional information, refer to Module Configuration Programmable Module Installation (PMI).

NOTE: When installing a new Restraints Control Module (RCM) always make sure the correct RCM is being installed. If an incorrect RCM is installed, DTCs will result.

NOTE: The air bag warning indicator illuminates when the correct RCM fuse is removed and the ignition is ON.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

1. If installing a new RCM, carry out the steps necessary to prepare for Programmable Module Installation (PMI). For additional information, refer to Module Configuration Programmable Module Installation (PMI).

2. Depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures information.

3. Remove the floor console. For additional information, refer to the Removal and Installation procedures in Instrument Panel and Console Instrument Panel.

4. Disconnect the large RCM connector.

1. Pinch the thumb tab and pivot the Connector Position Assurance (CPA) lever back.

2. Disconnect the RCM connector.





5. Disconnect the small RCM electrical connector.

6. Remove the 3 nuts and RCM.

Installation

1. WARNING: Always tighten the fasteners of the restraints control module (RCM) and impact sensor (if equipped) to the specified torque. Failure to do so may result in incorrect restraint system operation, which increases the risk of personal injury or death in a crash.

Position the RCM and install the nuts.

- Tighten to 12 Nm (106 lb-in).

2. Connect the small RCM electrical connector.

3. Verify that the CPA lever is positioned back completely (as shown) before connecting the large RCM connector.





4. NOTICE: Placing the large Restraints Control Module (RCM) electrical wiring connector into the RCM on an angle can cause bad electrical connections and damaged components.

Position the large RCM electrical connector into the RCM.

- NOTICE: Do not push the connector such that the Connector Position Assurance (CPA) lever pivots and seats. Use light force to insert the connector into the Restraints Control Module (RCM) before using the CPA lever to lock the connector. Damage to the connector or component may occur.

With the large RCM electrical connector uniformly aligned to the RCM, push in until a slight resistance is felt.





5. Connect the large RCM connector.
- Insert the connector into the RCM.
- Push to lock the CPA lever thumb tab to the RCM.





6. Install the floor console. For additional information, refer to the Removal and Installation procedures in Instrument Panel and Console Console - Floor.

7. Repower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures information.

8. If a new RCM was installed, carry out the appropriate steps necessary to complete PMI. For additional information, refer to Module Configuration Programmable Module Installation (PMI).