Power Window Diagnosis

INTRODUCTION TO POWER WINDOW DIAGNOSIS

The power window is controlled by the Simplified Wiring System (SWS). Refer to Simplified Wiring System (SWS), Diagnosis.

SHORT STROKE MECHANISM
- If the door outside handle or the door inside handle is operated when the door is closed and the door window glass is fully closed, or when the door is closed and the door window glass is open by less than 10 ± 5 mm (0.39 ± 0.197 inch), the door window glass will be lowered by 10 ± 5 mm (0.39 ± 0.197 inch).
- If the door is closed when the door is open and the door window glass is open by 10 ± 5 mm (0.39 ± 0.197 inch) or less, the door window glass will be fully closed.
- The short stroke mechanism does not work when the door window glass is already lowered 10 ± 5 mm (0.39 ± 0.197 inch) or more from the fully closed position.

If the following types of symptom occur, there may be a fault.
- The short stroke mechanism does not work.

POWER WINDOW DIAGNOSTIC TROUBLESHOOTING STRATEGY

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find a power windows fault.
1. Gather information from customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the Symptom Chart.
4. Verify malfunction is eliminated.