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Home >> GMC >> 2010 >> Terrain SLT, 2.4 W, AWD >> Repair and Diagnosis >> Body & Frame >> Fixed And MOVEABLE Windows System >> Diagnostic Information and Procedures >> Power Windows Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the scan tool parameters listed below while using left front, right front, left rear and right rear switches on the S79D window switch-driver. The parameters for each switch should change from Inactive to Active.
    • Driver Window Main Control Up Switch parameter
    • Driver Window Main Control Express Switch parameter
    • Driver Window Main Control Down Switch parameter
    • Front Passenger Main Control Down Switch parameter
    • Front Passenger Main Control Express Switch parameter
    • Front Passenger Main Control Up Switch parameter
    • Left Rear Main Control Down Switch parameter
    • Left Rear Main Control Express Switch parameter
    • Left Rear Main Control Up Switch parameter
    • Right Rear Main Control Down Switch parameter
    • Right Rear Main Control Express Switch parameter
    • Right Rear Main Control Up Switch parameter
    • If the parameters do not change or if the parameter is No Communication, refer to Window Switch Malfunction.
  2. Observe the appropriate scan tool Window Switch at Door parameter while using the S79P window switch-passenger, S79LR window switch-left rear and S79RR window switch-right rear. The parameters for each S79 window switch should change from Inactive to Up, Down and Express.
    • If the parameters do not change or if the parameter is No Communication, refer to Window Switch Malfunction.
  3. Command each window UP and DOWN by using their respective S79 window switch, each window should perform the UP and DOWN functions from each switch.
    • If a window does not perform as specified, refer to Window Motor Malfunction.