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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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