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Home >> Chevrolet >> 2009 >> Traverse LS, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Power Liftgate Malfunction (Liftgate Full Open Switch Malfunction) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 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 actuator switch.
  2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If greater than the specified range, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the liftgate control module.
  3. Ignition ON, verify that the scan tool LGM Full Open Switch parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the liftgate control module
  4. Connect a 3 A fused jumper wire between the signal circuit terminal 1 and ground, verify that the scan tool LGM Full Open Switch parameter is Active
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the liftgate control module
  5. If all circuits test normal, replace the liftgate actuator switch.
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