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Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0053 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. 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 warrent frontal or side air bag deployment. The SDM is capable of sustaining 3 pretensioners deployment events or one frontal or side deployment event. After the maximum number of deployments has occurred, DTC B0053 sets and becomes a latched code, which cannot be cleared.
When DTC B0053 is accompanied by additional DTCs, other than B0051, repair the malfunction causing the other DTCs before replacing the SDM.
  1. Ignition OFF, verify no signs of inflator module or pretensioner deployment exists.
  2. Verify the DTC B0053 is not set.
    • If the DTC is set, clear the DTC. If the DTC resets, replace the SDM.