What to Do When the Power Window Button Malfunctions?
1 Answers
When the power window button malfunctions, you can diagnose the issue by checking the circuit diagram, observing for debris, current, circuits, and the window regulator. Here are the detailed steps: 1. Check the Circuit Diagram: There is a button on the master control that blocks window movement. When pressed, the three window glasses cannot move. Essentially, this button interrupts the circuit of the other window lift motors. Pressing it cuts off the power, and pressing it again restores the power. 2. Excessive Debris Accumulation: For example, small cards inserted into the window can cause jamming. In such cases, simply visit a repair shop to dismantle the door and clean it out. 3. Turn on the Ignition Switch: The door window relay contact closes, connecting the power window circuit to the power source. When the combination switch or individual switch is set to the "up" position, current flows through the window motor, causing it to rotate and drive the regulator to raise the window glass. Setting it to the "down" position reverses the current direction, changing the motor's rotation direction, and the regulator lowers the window glass. When the window glass reaches the top or bottom, the circuit breaker cuts off for a while before resetting. 4. Circuit and Regulator Issues: Aging or short circuits in the circuit can cause button malfunctions. If the regulator itself is faulty, it is recommended to visit a 4S shop for replacement.
