Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

The seat belt pretensioners may deploy for impacts that are not severe enough to warrant frontal or side air bag deployment. The SDM is capable of sustaining 3 pretensioner deployment events, or one frontal or side deployment event. After the maximum number of deployments has occurred, DTC B0052 sets and becomes a latched code, which cannot be cleared.
When DTC B0053 is accompanied by additional DTCs, other than B0052, repair the malfunction causing the other DTCs before replacing the SDM.

Ignition OFF, verify no signs of inflator module or pretensioner deployment exist.
- If any signs of deployment exist, refer to Repairs and Inspections Required After a Collision .
Verify DTC B0053 is not set.
- If the DTC B0053 is set along with additional DTCs, other than B0052, repair the malfunction causing the DTCs before replacing the SDM. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Verify DTC B0052 is not set.
- If DTC B0052 is set, clear DTCs. If the DTC sets, replace the SDM.