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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> Power Windows Malfunction >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

  1. Ignition ON.
  2. Verify the driver, passenger, left rear and right rear window functions while commanding the Driver Window Motor, Passenger Window Motor, Left Rear Window Motor and Right Rear Window Motor Up and Down with a scan tool.
    • If the window does not move UP and DOWN as commanded 

      Refer to Circuit/System Testing.

    • If the window moves UP and DOWN as commanded 
  3. Verify the scan tool Left Rear Main Control Down Switch, Left Rear Main Control Express Switch, Left Rear Main Control Up Switch, Right Rear Main Control Down Switch, Right Rear Main Control Express Switch, Right Rear Main Control Up Switch, Front Passenger Main Control Down Switch, Front Passenger Main Control Express Switch, and the Front Passenger Main Control Up Switch parameter changes between Inactive and Active when pressing and pulling each switch on the driver window switch.
    • If the parameters do not change 

      Replace the S79D Window Switch-Driver.

    • If the parameters change 
  4. All OK.
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