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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Mirror System >> Diagnostic Information and Procedures >> Power Mirror Folding Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON/Vehicle in Service Mode.
  2. Verify DTC U151B, U1519 are not set.
    • If DTC U151B, U1519 are not set 
  3. Verify the scan tool Mirror Direction Switch parameter changes from Inactive to Up, Down, Right, Left, Folding and Extending when cycling the S52 Outside Rearview Mirror Switch.
    • If the parameter changes 
  4. Verify the A9A Outside Rearview Mirror-Driver and the A9B Outside Rearview Mirror-Passenger FOLD and EXTEND when cycling the S52 Outside Rearview Mirror Switch.
    • If the A9A Outside Rearview Mirror-Driver does not FOLD and EXTEND 

      Refer to Circuit/System Testing - Driver Outside Mirror Folding Command Malfunction.

    • If the A9B Outside Rearview Mirror-Passenger does not FOLD and EXTEND 

      Refer to Circuit/System Testing - Passenger Outside Mirror Folding Command Malfunction.

    • If the A9A Outside Rearview Mirror-Driver and A9B Outside Rearview Mirror-Passenger does FOLD and EXTEND 
  5. All OK.