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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 128 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> DTC B1001: Option Configuration Error >> Diagnostic Procedure

Diagnostic Procedure

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  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, program correct VIN into PCM. 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  8.
  6. If SDM was replaced, go to step  9. If SDM was not replaced, go to next step.
  7. Replace SDM. See SENSING & DIAGNOSTIC MODULE (SDM)  under REMOVAL & INSTALLATION. Go to next step.
  8. Using scan tool, reprogram VTD system. Go to next step.
  9. Reconnect all SIR components. Using scan tool, clear all DTC's. Turn ignition off for 10 seconds. If no DTC's are retrieved, system is normal.