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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Inflatable Restraint System >> Diagnostic Tests >> DTC B1000: SDM Malfunction >> Diagnostic Procedure

Diagnostic Procedure

  1. If SIR diagnostic system check has been performed, go to next step. If SIR diagnostic system check has not been performed, go to SIR DIAGNOSTIC SYSTEM CHECK .
  2. If DTC is retrieved as both a history and current DTC, go to next step. If DTC is not retrieved as both a history and current DTC, go to DIAGNOSTIC AIDS .
  3. Turn ignition off. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Reconnect all SIR components. Ensure that all components are properly mounted. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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