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Home › Buick › 2012 › Regal Base › Repair and Diagnosis › Body & Frame › Door Locks › Power Door Lock System And Release Systems › Diagnostic Information and Procedures › DTC B3265 › Circuit/System Testing

Circuit/System Testing

  1. Disconnect the X2 harness connector at the X50A fuse block-underhood.
  2. Connect a test lamp between the control circuit terminal 13 and B+.
  3. Command the Trunk Release ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
    • If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the K9 BCM.
    • If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
  4. If all circuits test normal, replace the X50A fuse block-underhood.
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