Air Bag Control Module: Service and Repair
INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE REPLACEMENTTOOLS REQUIRED
J 38778 Door Trim Panel and Garnish Clip Remover
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.
- IF THE VEHICLE INTERIOR IS EXPOSED TO MOISTURE AND BECOMES SOAKED UP TO THE LEVEL OF THE SENSING AND DIAGNOSTIC MODULE (SDM), THE SDM AND SDM HARNESS CONNECTOR MUST BE REPLACED. THE SDM COULD BE ACTIVATED WHEN POWERED, WHICH COULD CAUSE AIRBAG DEPLOYMENT AND RESULT IN PERSONAL INJURY
- REFER TO SIR CAUTION IN SERVICE PRECAUTIONS.
1. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 9.
2. Remove the passenger front seat.
3. Remove the front carpet retainer.
4. Remove the lower center pillar trim panel.
5. Remove the quarter lower trim as needed.
6. Using J 38778 remove the push-in retainers which position the carpet on top of the rocker panels.
7. Roll back the carpet to expose the inflatable restraint sensing and diagnostic module (SDM).
8. Remove the connector position assurance (CPA) from the wiring harness connector of the (SDM).
9. Disconnect the SDM wiring harness connector.
10. Remove the SDM mounting fasteners (1).
11. Remove the SDM (2) from the floor pan (3).
INSTALLATION PROCEDURE
1. Remove any dirt, grease, or other impurities from the mounting surface.
2. Position the SDM (2) horizontally to the floor pan (3).
3. Point the arrow on the SDM toward the front of the vehicle.
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the SDM mounting fasteners (1).
Tighten
Tighten the fasteners to 10 N.m (89 lb in).
FIRST REPAIR
4.1. Remove and discard the stripped fastener (1).
4.2. Install the SDM (2) with new fastener GM P/N 10156138.
Tighten
Tighten the fastener to 10 N.m (89 lb in).
SECOND REPAIR
4.1. Remove and discard the stripped fastener (1).
4.2. Install the SDM (2) using a larger fastener GM P/N 10267482 with a washer GM P/N 11500305.
Tighten
Tighten the fastener to 5 N.m (44 lb in).
IMPORTANT: If the SDM mounting holes or fasteners are damaged to the extent that the module can no longer be properly mounted, use the following repair. Torque the replacement fastener with a hand tool in order to prevent stripping the replacement fastener.
5. Install the SDM wiring harness connector.
6. Install the CPA to the SDM wiring harness connector.
7. Install the push-in retainers which position the carpet on top of the rocker panels.
8. Install the lower center pillar trim panel.
9. Install the quarter lower trim.
10. Install the carpet and the front carpet retainer.
11. Install the passenger front seat.
12. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 9.