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.
NOTE: Always make sure the correct Supplemental Restraint System (SRS) component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Master Parts Catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.
NOTE: The air bag warning indicator illuminates when the correct Restraints Control Module (RCM) fuse is removed and the ignition is ON.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: This vehicle is equipped with the SYNC(R) V2 feature which contains the 911 assist option. Refer to the Owners' Literature.
NOTE: Carrying out Programmable Module Installation (PMI) will not enable the 911 assist option that is disabled.
1. Carry out the steps necessary to prepare for PMI. For additional information, refer to Information Bus.
2. Depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering.
3. Remove the front seats. For additional information, refer to Seats.
4. Remove the LH and RH floor console lower trim panels.
5. Disconnect the small RCM electrical connector.
6. 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 RCM electrical connector.
7. Remove the 3 bolts and RCM.
Installation
1. Position the RCM.
2. 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.
Install the 3 RCM bolts.
- Tighten to 12 Nm (106 lb-in).
3. Make sure the connector position assurance lever is in the full release position before attempting to connect the connector.
4. NOTICE: Putting the large Restraints Control Module (RCM) electrical connector into the RCM on an angle can cause bad electrical connections and damage components.
Position the large RCM electrical connector into the RCM.
- NOTICE: Do not push the connector to the point where the lever pivots and seats itself. Light pressure is needed to get the connector into position on the Restraints Control Module (RCM) before using the lever to fully seat the connector. Failure to follow these instructions may result in vehicle damage, equipment damage, component damage and/or system failure.
With the large RCM electrical connector uniformly aligned to the RCM, lightly push in until a subtle, audible click is heard and slight resistance is felt.
5. Connect the RCM electrical connector.
- Pivot the connector position assurance lever toward the RCM, drawing the connector in to the RCM.
- Make sure the thumb tab is engaged to the retainer on the RCM and locked in place.
6. Connect the small RCM electrical connector.
7. Install the LH and RH floor console lower trim panels
8. Install the front seats. For additional information, refer to Seats.
9. Repower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering Supplemental Restraint System (SRS) Depowering and Repowering.