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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 181 (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 the SDM.
  1. Ignition OFF, verify no signs of inflator module or pretensioner deployment exist.
  2. 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.
  3. Verify DTC B0052 is not set.
    • If DTC B0052 is set, clear DTCs. If the DTC sets, replace the SDM.
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