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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 436 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> DTC B1000: SDM Malfunction >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  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. Using scan tool, request SIR DTC display. If DTC B1000 is retrieved as a current DTC, go to next step. If DTC B1000 is retrieved as a history DTC, go to DIAGNOSTIC AIDS .
  3. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  4. Using scan tool, erase DTC's. Road test vehicle, then check for DTC's. IF DTC B1000 is retrieved by scan tool, go to step  2. If DTC B1000 is not retrieved, system is normal.
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