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Home >> Chevrolet >> 2010 >> Traverse LT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 480 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> DTC B2495: Liftgate Latch Release/Cinch Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the liftgate latch assembly.
  2. Connect a test lamp between control circuit terminal 1 and ground.
  3. Ignition ON, command the liftgate to OPEN by pressing and releasing the liftgate interior control switch. The test lamp should illuminate while commanding the OPEN state.
    • If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the liftgate control module.
    • If the test lamp is always ON, test the control circuit for a short to voltage, if the circuit tests normal, replace the liftgate control module.
  4. Ignition OFF, connect a test lamp between the control circuit terminal 3 and ground.
  5. Connect a 3 A fused jumper wire between the signal circuit terminal 6 and ground.
  6. Ignition ON, command the liftgate to CLOSE by pressing and releasing the liftgate interior control switch. The test lamp should illuminate while commanding the CLOSE state.
    • If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the liftgate control module.
    • If the test lamp is always ON, test the control circuit for a short to voltage, if the circuit tests normal, replace the liftgate control module.
  7. If all circuits test normal, test or replace the liftgate latch assembly.
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