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Home › Hummer › 2009 › H2 4D Utility Pickup › Repair and Diagnosis › Body & Frame › Fixed And MOVEABLE Windows › Diagnostic Information and Procedures › Power Windows Malfunction › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the operation of the power windows while commanding each window UP and DOWN by using their respective window switches, each window should perform the UP and DOWN function.
    • If the driver window is inoperative, refer to Driver Window Malfunction under Circuit/System Testing .
    • If the front passenger window is inoperative, refer to Passenger Window Malfunction under Circuit/System Testing .
    • If either rear passenger window is inoperative, refer to Rear Passenger Window Malfunction under Circuit/System Testing .
  2. Globally command the windows UP and DOWN by using the global window switch, all windows should globally express UP and express DOWN.
    • If all windows fail to perform the global command, refer to Global Command Malfunction under Circuit/System Testing .
  3. Observe the scan tool Driver Window RF Switch, Driver Window LR Switch and Driver Window RR Switch parameters while using the driver master control switches. The parameter should change between Off/Up/Down/Express Down.
    • If the parameter does not change, replace the DDS.
  4. Observe the scan tool Window Lockout Switch parameter while pressing and depressing the window lockout switch on the driver master control. The parameter should change between On and Off.
    • If the parameter does not change, replace the DDS.
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