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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 256 (Mirror System) >> Diagnostic Information and Procedures >> Power Mirror Tilt Inoperative in Reverse >> 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. Ignition ON/Vehicle in Service Mode.
  2. Verify the A9A Outside Rearview Mirror-Driver moves when commanding the Driver Mirror Horizontal Movement Right/Left and Driver Mirror Vertical Movement Up/Down with a scan tool.
    • If the A9A Outside Rearview Mirror-Driver moves RIGHT, LEFT, UP and DOWN 
  3. Verify the A9B Outside Rearview Mirror-Passenger moves when commanding the Passenger Mirror Horizontal Movement Right/Left and Passenger Mirror Vertical Movement Up/Down with a scan tool.
    • If the A9B Outside Rearview Mirror-Passenger moves RIGHT, LEFT, UP and DOWN 
  4. All OK.