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Home >> Chevrolet >> 2004 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 328 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B1001 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, use the scan tool to request SIR DTCs. Verify that DTC B1001 is set as current.
    • If DTC B1001 is history, clear DTCs and recheck.
  2. Verify the scan tool parameter Secondary Key Status is Valid.
    • If the Secondary Key Status is not valid, verify that Received VIN Digits 2-5 and Received VIN Digits 2-5 parameters match the vehicle VIN. If the parameters do not match the VIN, reprogram the BCM.
    • If the Secondary Key Status is not valid, verify that Received VIN Digits 2-5 and Received VIN Digits 6-7 parameters match the vehicle VIN. If the parameters match the VIN, reprogram the SDM.
  3. Verify the scan tool parameter Primary Key Status is Valid.
    • If the Primary Key Status is not valid, verify that the Received Primary Key and the SDM Primary Key parameters match. If the parameters do not match, use the scan tool to perform the Setup SDM Primary Key in BCM.
  4. If all parameters are correct, use the scan tool to clear the DTCs. Verify that DTC B1001 is cleared.
    • If DTC B1001 is still current, replace the SDM.
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