What happens if one fuse fails on a car window?
With some arrangements a single fuse in the main supply line is used to protect the complete window system so a failure here affects all the windows. Other cars have individual fuses for each window motor so failure will only affect the one window.
What should the current be on a power window motor?
With analog motors, checking between the two wires should show either 12 volts or -12 volts, depending on the position of the switch. Full current available and a motor that does not run suggests a bad motor. A lack of current flow means power is not reaching the motor and the problem is upstream.
How can I tell if my window motor is analog or digital?
With a digital volt meter, we can test to see if power reaches the window motor. If the power window motor has two wires, it is an analog system. We can back probe the connector at the motor, to detect if current flows when we press the switch.
How do you remove a motor from an electric window?
Undo the screws that hold the motor to the door or to the winder mechanism. You may then be able to just pull the motor away from the rest of the winder mechanism. Watch out for any drive adapter pieces that may fall out when you remove the motor.
With analog motors, checking between the two wires should show either 12 volts or -12 volts, depending on the position of the switch. Full current available and a motor that does not run suggests a bad motor. A lack of current flow means power is not reaching the motor and the problem is upstream.
With a digital volt meter, we can test to see if power reaches the window motor. If the power window motor has two wires, it is an analog system. We can back probe the connector at the motor, to detect if current flows when we press the switch.
Why is my power window switch not working?
Each time you press down on the up or down part of the switch, it wears the switch out just a little bit more. If you press it too aggressively or use it on a regular basis, there may come a point when the switch stops working properly. This would actually be the best-case scenario whenever your power windows are not moving.
What does the switch do to lower the power window?
Pressing the switch to lower a power window, directs current to one wire and grounds the other wire. Direct current flow in this position causes the motor to rotate and lower the power window.