Air Bag Control Module: Service and Repair

Inflatable Restraint Sensing and Diagnostic Module Replacement

Removal Procedure

Caution: Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of the vehicle. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.

Caution: Refer to Restraint System Service Precautions.




1. Disable the supplemental inflatable restraint (SIR) system. Refer to SIR Disabling and Enabling.
2. Remove the floor console.
3. Partially remove the console mounting bracket in order to allow access to the rear carpet. Refer to Floor Console Bracket Replacement.
4. Position the rear carpet in order to access the sensing and diagnostic module (SDM).
5. Disconnect the electrical connectors (2) from the SDM (1).




6. Remove the nuts that retain the SDM to the floor panel.
7. Remove the SDM from the vehicle.

Installation Procedure

1. Remove any dirt, grease, etc. from the mounting surface.




2. Install the SDM horizontally to the vehicle.
3. Point the arrow on the SDM towards the front of the vehicle.

Notice: Refer to Fastener Notice.

4. Install the nuts that retain the SDM to the floor panel.

Tighten the nuts to 12 N.m (106 lb in).




5. Connect the electrical connectors (2) to the SDM (1).
6. Return the carpet to the fully installed position.
7. Install the console mounting bracket to the floor panel.
8. Install the floor console.

Important: The AIR BAG indicator may remain ON after the SDM has been replaced. DTC B1001 may set requiring the SDM part number to be set in multiple modules. If the indicator remains ON after enabling the SIR system, perform the diagnostic system check and follow the steps thoroughly to ensure that the SDM is set up properly.

9. Enable the SIR system. Refer to SIR Disabling and Enabling.