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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Sunroof System) >> Diagnostic Information and Procedures >> Power Sunroof Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the sunroof motor initialization procedure. Refer to Sunroof Window Motor Initialization .
  2. Ignition ON.
  3. Verify the sunroof opens and closes when pressing the open and close sunroof switch.
    • If the sunroof does not open or close 

      Refer to Circuit/System Testing.

    • If the sunroof opens and closes 
  4. Verify the sunroof opens and closes to the vent position when pressing the open and close sunroof vent switch.
    • If the sunroof does not open or close to the vent position 

      Refer to Circuit/System Testing.

    • If the sunroof opens and closes to the vent position 
  5. All OK.
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