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Home >> Chevrolet >> 2005 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 584 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B3265 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Saturn Sky. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the trunk release relay.
  2. Connect a test lamp between the relay coil B+ circuit and the relay coil control circuit.
  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 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 BCM.
  4. If all circuits test normal, test or replace the trunk release relay.
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