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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC B1001: Option Configuration Error >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. 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. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel, to right of steering column. Using scan tool, verify 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, program correct VIN into PCM. Go to step  8.
  4. If BCM was not replaced, go to next step. If BCM was replaced, go to step  6.
  5. Using scan tool, verify BCM is programmed with correct VIN. If VIN is correct, go to step  7. If VIN is not correct, go to next step.
  6. Using scan tool, select BCM SPECIAL FUNCTIONS. Follow scan tool prompts to reprogram BCM. Go to step  8.
  7. Turn ignition off. 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 B1001 is retrieved by scan tool, go to step  2. If DTC B1001 is not retrieved by scan tool, system is okay. Go to SIR DIAGNOSTIC SYSTEM CHECK .
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