How to Fix a Broken Power Window

In order to gain access to the faulty window electronics and hardware parts, the door panel must be removed. This process requires special tools. These tools can be found at local parts shops and dealers. Electronic equipment will also be needed to do the job right. While it is not a dangerous job to begin with, Always pay special attention to specified tools for this or any job.

Things You'll Need

• Open end box end wrench (ratchet set optional)
• Needle nose pliers
• Plastic hammer
• Crimper and stripper tool
• Digital volt ohm meter
• Cleaning solvent station
• Shop air blow fitting to clean the compressor
• Solvent protective gloves
• Plastic coiled wire protector
• Wire connectors as needed
• New air filter
• All these parts and tools can be purchased at your local parts dealer or through your vehicle manufacturer.

Instructions

1. With the special tool for removing plastic clips, remove the plastic inner door and set aside. Be careful not to pull any wires during the process.

2. Do a visual inspection of the door mechanism. You may find something stuck, preventing the scissors from operating. Remove the obstruction and install the door panel.

3. Use your test light to determine if the wiper motor has power going to it. Visually inspect all wiring in the interior of the vehicle. Check the fuse before moving to any other steps. If melted, separated or burned, cut out the bad spots with your splicer/crimper tool. Use the proper gauge wire to prevent it from coming loose from its connector.

4. Use your digital volt ohm meter to diagnose high or low ohms. Lower readings are good; high numbers are bad in this case, because high ohms means no power or not enough to make the circuit work.

5. Reconnect any repaired wiring. Replace the control module if removed. Test the power window function.If the washer blades work, clean up using plastic coiled wire saver to keep wire from touching each other and engine parts that may be rubbing against the wires.

6. Install the coiled tape and remove all tools from the work area. Put the vehicle in the on position and test the button function. Blades should be moving back and forth. If not, consult the service manual for your vehicle for any special techniques.

Tips & Warnings

• Allow the engine to cool completely before beginning this procedure to prevent burns.

• Take care not to damage the wire protector in order to prevent corrosion.

• During disassembly, placing each peace on your work table will help you put it back together.

• Take a picture of the internal part to help identify parts location.

• Safety glasses should be worn throughout the procedure.