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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 456 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> DTC B1001: Option Configuration Error >> 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, verify that PCM is programmed with correct VIN. If VIN is not correct, go to next step. If VIN is correct, go to step  4.
  3. Using scan tool, reprogram PCM with correct VIN. Go to next step.
  4. If BCM was replaced, go to step  6. If BCM was not replaced, go to next step.
  5. Using scan tool, verify BCM is programmed with correct VIN. If VIN is not correct, go to next step. If VIN is correct, go to step  7.
  6. Using scan tool, follow prompts under BCM SPECIAL FUNCTIONS to reprogram BCM. Go to step  8.
  7. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  8. Reconnect all SIR components. Using scan tool, clear all DTC's. Road test vehicle, then check for DTC's. If DTC's are retrieved, go to step  2. If no DTC's are retrieved, system is normal.
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