Air Bag Control Module: Service and Repair

Restraints Control Module (RCM)









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.

WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy(R) and cause serious personal injury or death.

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. Programming and Relearning

NOTE: 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.

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). Programming and Relearning

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.

3. Remove the instrument panel center finish panel.

4. Disconnect the large RCM electrical connector.

1. Pinch the thumb tab and pivot the connector position assurance lever all the way back until it stops.

2. Pull out and disconnect the large RCM electrical 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. Make sure the large RCM connector position assurance lever is in the full release position before attempting to connect the connector.





4. NOTICE: Putting the large RCM electrical wiring connector into the RCM on an angle can cause bad electrical connections and damage components.

NOTICE: Do not push the connector to where the lever pivots and seats itself. Light pressure is needed to get the connector into position on the RCM before using the lever to fully seat the connector.

Connect the large RCM electrical wiring connector.
- Using the connector position assurance lever, pivot it toward the RCM, drawing the connector into the RCM.
- Make sure the thumb tab is engaged to the retainer on the RCM and locked in place.





5. Install the instrument panel center finish panel.

6. 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.

7. If a new RCM was installed, carry out the steps necessary for PMI.