How many volts does a window motor need?
Basic Specification The power window motor has four mounting hole positions. There is a working voltage of 12 volts DC current.
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 does the window regulator and window motor work?
When the window switch is pressed “Down” the multimeter measures 12 Volts, so we know there is power at the window motor switch. When the window switch is pressed “Up” the multimeter shows -12 Volts, because the polarity changes when the window switch is moved from “Down” to “Up” position.
What causes the power window to rotate and lower?
Both leads may show continuity to ground, depending on the design of the switch. 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.
Why is the power window on my car not working?
The problem lies in the window regulator. If you’re seeing the toggling voltage, the problem is in the window regulator. It’s either a bad motor or a broken regulator that’s causing the motor to stall. Reconnect the electrical connector to the motor and try operating the window.
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.
Both leads may show continuity to ground, depending on the design of the switch. 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.
How does a power window regulator work on a car?
The motor turns, but the power window does not move. Converting the rotation of the motor into vertical window motion is the task of the window regulator. In the past most regulators were usually gear driven with arms. Small wheels roll in the tracks and the arms push the window up.
How do you disconnect a power window motor?
The power window controls attach to the motor and regulator via a wiring pigtail connector. Press the tab down to disconnect the pigtail then pull them apart to disconnect the motor. Be careful not to break the tab that holds the wiring harness together.