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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 461 (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 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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. Install scan tool to Data Link Connector (DLC), located under left side of instrument panel. Using scan tool, verify VIN programmed into PCM matches vehicle VIN. If VIN's match, go to step  4. If VIN's DO NOT match, go to next step.
  3. Using scan tool, reprogram PCM with correct VIN. Go to step  9.
  4. If BCM was replaced, go to next step. If BCM was not replaced, go to step  6.
  5. Using scan tool, program BCM to learn restraints identification from SDM. Go to step  9.
  6. Compare VIN stored in BCM to VIN stored in PCM. If VIN's DO NOT match, go to next step. If VIN's match, go to step  8.
  7. Using scan tool, reprogram BCM with correct VIN. Go to step  9.
  8. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  9. Reconnect all SIR components. Using scan tool, clear SIR DTC's. Turn ignition off. Wait 10 seconds. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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