2. Power windows can be opened and closed using a driver-controlled master switch or individual switches located on specific doors. Each window regulator is equipped with a separate electric motor, which has a reverse function. The position of the control switch determines the polarity and therefore the direction of glass movement.
3. The electrical circuit is protected by a fuse and a circuit breaker (breaker). In addition, each electric motor is equipped with an internal electrical circuit breaker; it prevents the failure of the entire system when one power window is jammed.
4. The power window system only works when the ignition is on. Also, not many models have a power window lock switch built into the glorious switch. This switch, when activated, disables the switches for the rear windows and sometimes also the switch on the front passenger door. Be sure to check these items before troubleshooting power windows.
5. The procedures described are of a general nature. If you cannot determine the cause using them, contact the dealer's service department or another service station that has the appropriate equipment.
6. If the power windows do not work, be sure to check the fuse and circuit breaker first.
7. If only the rear power windows are not working, or if the power windows are only working from the main switch, check the rear power window lock switch for continuity in the unlocked position. Replace it if there is no continuity.
8. Check wiring between switches and fuse panel for continuity. Repair wiring if necessary.
9. If only the power window of one window does not work from the main switch, check the switch for the other window.
Note. This does not apply to the driver's door window.
10. If the power window of any window works from one switch, but does not work from another, check the switch for the presence of electrical continuity. Have the switch checked by the dealer's service department or another service station.
11. If checks show that the switch is serviceable, check up presence of short circuit or rupture of an electric chain between the considered switch and the electric window regulator motor.
12. If any window regulator does not work from both switches, remove the trim panel from the problematic door and check for voltage in the switch and in the electric motor with the switch activated.
13. If the voltage reaches the electric motor, disconnect the glass from the power window (see chapter 11). Raise and lower the glass manually to check for binding or damage. Also check the window regulator. If the window regulator is not damaged and the window rises and falls smoothly, replace the electric motor. If there is binding or damage, lubricate, repair, or replace parts as necessary.
14. If voltage does not reach the motor, check the wiring between the switches and the motors for electrical continuity. You will need to refer to the wiring diagram for the car. If the electrical circuit is equipped with a relay, make sure the relay is properly grounded and energized.
15. In conclusion, check the operation of the power windows to make sure that the repair is correct.