Troubleshoot Power Windows Power windows are standard equipment on most late model cars. Usually the windows cause few problems,but sometimes they can stop working,or fail to roll back up after being lowered. Problem: One Power Window Does Not Work (no noise,no nothing) If one power windows fails to move when you press the switch to lower it,the most likely causes would be a bad switch,a bad power window motor,a fault in the wiring circuit between the door switch and the door motor,or a wiring fault in the motor power or ground circuit. To diagnose this kind of fault,start with the switch since that is usually the easiest component to remove and check. Many power window door switches simply pry out of their fixtures in the door panel.
If the window lowered fine,but fails to come back up,it may be off the track inside the door launch crp129. This will require removing the door panel to see if the window tracks or guide bushings are broken. Replacing a Power Window Motor Replacing a power window motor is not fun because you have to remove the inner door panel. Some door panels just pry loose from the doorframe,but many require special tools to release the clips that hold the panel in place. The best advice is to look up the door panel removal procedure in the OEM service literature so you can remove the door panel without damaging anything. Once the door panel is off,you may have to drill out rivets that mount the motor to the door frame or window mechanism x431 gds. This can be difficult depending on how accessible the rivets are. The replacement motor will have new pop rivets or screws to hold the motor in place. Problem: None of the Power Windows Work If none of the windows will move when you press their switches,the fault could be a blown fuse for the power window circuit,or an open or short in the wiring circuit that supplies the power window circuit. Check the fuse first. Refer to your owner's manual for the location of the fuse panel (usually located under the dash on the driver side,on the driver's side kick panel,or on a side panel in the center console. Locate the numbered fuse that corresponds to the power window circuit,then pull out the fuse to see if the wire inside has burned through or is broken. If the fuse has blown,there is either a short or an overload in the power window circuit. Try replacing the blown fuse with a new one (make sure it has the SAME amp rating as the original,not lower,not higher). Then turn the ignition key on and try to lower one of the power windows. If the new fuse blows immediately,there is a short in the wiring that will have to be found and fixed. DO NOT try to install a higher amp fuse or bypass the fuse for the power window circuit,as this is your only protection against a dangerous overload that could start an electrical fire! If the windows work,it may have been a temporarily overload that caused the fuse to blow. Trying to lower a window that is frozen shut in the wintertime can do this and/or break the window mechanism inside the door. If the fuse is okay,there may be a break in the wiring that routes power to the power window motors and switches. You'll probably need to look up a wiring harness diagram for your vehicle to identify and trace the wires in the circuit.
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