Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- 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 from each switch.
- If the driver window is inoperative, refer to Driver Window Malfunction .
- If the front passenger window is inoperative, refer to Passenger Window Malfunction .
- If either rear passenger power window is inoperative, refer to Rear Passenger Window Malfunction .
- Observe the scan tool Driver RF Window Switch, Driver LR Window Switch and Driver RR Window Switch parameters while using the driver master control switches. The parameter should change between Off, Up, Down, and Express Down.
- If the parameter does not change, replace the DDS.
- Observe the scan tool Window Lockout Switch parameter while pressing and depressing the window lockout switch on the driver master control. Theparameter should change between On and Off.
- If the parameter does not change, replace the DDS.