Where is my power window relay?
On early 944s, the power window relay is located on the lower left side of the center console near the DME computer. On late model 944s, it’s located on the Central Electric Panel (G7). If your window problem is only on one side, the cause is most likely a bad switch, bad wiring, or a bad window motor.
How does a power window relay work?
The relay takes a small current through the switch to energize the relay which allows a larger current to go to the motor. If the larger current went through the switch it would cook it. If the switch was designed to handle the current the switch would be much larger.
How does a power window Relay Relay work?
The basic motor operation is done by reversing the polarity of it’s power and ground input. It is here where a properly connected window motor makes the whole arrangement worthwhile and stable.
What causes one power window to stop working?
Only one window stops working If only one window stops working, the problem could be a bad relay, fuse issue, bad motor, or the power window switch has failed. The most common reason for one window to stop working is the switch, so this should be looked at by a professional mechanic to have your power window switch replaced.
What are the symptoms of a bad power window switch?
If you suspect your power window switch is going bad or failing, watch for the following symptoms: 1. All the windows quit working If all of the windows quit working at once, meaning there is no response when you push the power window switch, chances are there is a loss of power in the electrical system.
When do you need to replace power window switch?
If the windows are not working properly, not working at all, or only work from the master switch, you may need to replace the power window switch. 1. All the windows quit working 2. Only one window stops working