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Home › Chevrolet › 2006 › Impala SS › Repair and Diagnosis › Body & Frame › Windows › Door System, Mirror System & Window System › Diagnostic Information and Procedures › DTC B3135 › Circuit/System Testing

Circuit/System Testing

  1. Disconnect the Lock relay in the BEC. Verify the DTC resets.
    • If the DTC does not reset, replace the Relay.
  2. Disconnect the BEC connector C1. Verify the DTC resets.
    • If the DTC does not reset, replace the BEC.
  3. Test for a short to ground in the door lock relay control circuit.
    • If all circuits/connections test normal, replace the BCM.
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