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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 644 (Door Lock Systems & Door Handles) >> Diagnostic Information and Procedures >> DTC B3265 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the harness connector at the Rear Compartment Lid Release Actuator.
  2. Test for less than 1 ohm of resistance between the Rear Compartment Lid Release Actuator ground circuit terminal 3 and ground
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit terminal 4 and ground.
  4. 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 voltage. If the circuit tests normal, replace the Underhood Fuse Block.
    • If the test lamp is always OFF and the circuit fuse is good, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the Underhood Fuse Block.
    • If the test lamp is always OFF and the circuit fuse is open, test the control circuit for a short to ground. If the circuit tests normal, test or replace the Rear Compartment Lid Release Actuator.
  5. If all circuits test normal, test or replace the Rear Compartment Lid Release Actuator.
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