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Home >> Cadillac >> 2016 >> CT6 Base, 3.6L Eng VIN S >> Repair and Diagnosis >> Body & Frame >> Windows >> Fixed And MOVEABLE Window System >> Diagnostic Information and Procedures >> Power Windows Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition On/Vehicle in Service Mode.
  2. Verify the driver window functions while commanding the Driver Window Motor Up and Down with a scan tool.
    • If the driver window does not move UP and DOWN as commanded 

      Refer to Circuit/System Testing - Window Motor Malfunction.

    • If the driver window moves UP and DOWN as commanded 
  3. Verify the scan tool parameters listed below change when pressing and pulling the S79D Window Switch - Driver
    • Driver Main Control Down Switch - Inactive and Active
    • Driver Main Control Express Switch- Inactive and Active
    • Driver Main Control Up Switch- Inactive and Active
    • If the parameter does not change 

      Refer to Circuit/System Testing - Driver Window Switch Malfunction.

    • If the parameter changes 
  4. Verify the driver performs the express UP and express DOWN functions when using the S79D Window Switch-Driver.
    • If after normalization, the driver window does not express UP or express DOWN 

      Refer to Circuit/System Testing - Driver Window Switch Malfunction.

    • If the driver window performs the express UP and express DOWN as commanded 
  5. Verify the scan tool parameters listed below change when pressing and pulling the switches for the passenger, left rear and right rear window on the driver window master control;
    • Left Rear Main Control Down Switch - Inactive and Active
    • Left Rear Main Control Express Switch - Inactive and Active
    • Left Rear Main Control Up Switch - Inactive and Active
    • Right Rear Main Control Down Switch - Inactive and Active
    • Right Rear Main Control Express Switch - Inactive and Active
    • Right Rear Main Control Up Switch - Inactive and Active
    • Front Passenger Main Control Down Switch - Inactive and Active
    • Front Passenger Main Control Express Switch - Inactive and Active
    • Front Passenger Main Control Up Switch - Inactive and Active
    • If any parameter does not change 

      Replace the S79D Window Switch-Driver.

    • If the parameters change 
  6. Verify the passenger window functions while commanding the Passenger Window Motor Up and Down with a scan tool.
    • If the passenger window does not move UP and DOWN as commanded 

      Refer to Circuit/System Testing - Window Motor Malfunction.

    • If the passenger window moves UP and DOWN as commanded 
  7. Verify the scan tool Passenger Window Switch at Door parameter changes from Inactive to Up, Express Up, Down and Express Down when pressing and pulling the S79P Window Switch-Passenger
    • If the parameter does not change 

      Refer to Circuit/System Testing - Passenger/Rear Window Switch Malfunction.

    • If the parameter changes 
  8. Verify the scan tool Left Rear Window Switch at Door parameter changes from Inactive to Up, Express Up, Down and Express Down when pressing and pulling the S79LR Window Switch-Left Rear
    • If the parameter does not change 

      Refer to Circuit/System Testing - Passenger/Rear Window Switch Malfunction.

    • If the parameter changes 
  9. Verify the scan tool Right Rear Window Switch at Door parameter changes from Inactive to Up, Express Up, Down and Express Down when pressing and pulling the S79RR Window Switch-Right Rear
    • If the parameter does not change 

      Refer to Circuit/System Testing - Passenger/Rear Window Switch Malfunction.

    • If the parameter changes 
  10. Verify the passenger and rear window performs the express UP and express Down functions with the appropriate passenger or rear S79 Window Switch.
    • If after normalization, a passenger or rear window does not express UP or express DOWN 

      Refer to Circuit/System Testing - Passenger/Rear Window Switch Malfunction.

    • If the passenger and rear window performs the express UP and express DOWN as commanded 
  11. All OK.