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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 333 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Liftgate Ajar Indicator Malfunction (With TB5) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition On/Vehicle In Service Mode
  2. Operate the component: Open the liftgate.

    Verify the scan tool parameter:

    • Body Control Module: Rear Closure Ajar Switch = Active
    • Liftgate Control Module: Liftgate Latch Pawl Switch = Open
    • Liftgate Control Module: Liftgate Latch Ratchet Switch = Open
    • If not the specified state 

      Refer to: Circuit/System Testing

    • If the specified state 
  3. All OK.
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