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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 977 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0052 or B0053 >> Circuit/System Verification

Circuit/System Verification

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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 SDM.
  1. Ignition OFF, verify no signs of inflator module or pretensioner deployment exist.
  2. Ignition ON, verify DTC B0052 or DTC B0053 is not set.
    • If the DTC is set, clear DTCs. If DTC resets, replace the SDM.
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