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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 250 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> DTC B3130 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the BEC connector C1. Verify the DTC resets.
    • If the DTC does not reset, replace the BEC.
  2. Test for a short to voltage in the passenger door unlock relay control circuit.
    • If all circuits/connections test normal, replace the BCM.