Valeo windshield wiper motor

I am quoting from all electronics corp:

"Valeo 15094704. Powerful 12 Vdc windshield wiper motor. 65 RPM @ 12 Vdc, 2.5 Amps (no-load rating). Diecast metal housing with plastic circuit housing is 7.75" long x 5" x 3.5." A metal arm with a ball-joint is affixed to the 5/16" drive shaft with a nut. A 10-pin connector and plastic housing containing circuitry are attached to one side of the motor. An interesting and possibly useful feature of this motor is that it always stops in the same position when the power is switched off. If a momentary connection is made, the motor will rotate exactly one revolution."

They also have a useful pdf available with the pin description.

If you ground PIN 5 for about one second and then disconnect the connection to ground then the motor will stop its rotation after 360 degrees, which is its starting position.

If you keep PIN 5 grounded the motors keeps on turning. It seems that when doing so the motors turns at a faster speed.


I used 12 of those motors to each lift a 12 foot aluminium rod. Each motor was powered by an 10 amp/ 12 volt computer power supply. The project is called Stellar Dynamic.




I originally thought of using an other type of wiper motor (see image, motor with black body). It also gives you an signal when it finishes a full rotation, but does not stop automatically. One of the PINs stops being grounded for the last 10 degrees of the rotation. That can be used as position indicator.

Here is the pin description:

Approx. 62 RPMs at 12 volts (High Speed)

Approx. 45 RPMs at 12 volts (Low Speed)


5 Pin Connector is labeled as follows:

53b - High Speed

53a - Index Switch

53e - Index Switch

31b - Ground (case)

53 - Low Speed

For more info go to here and here.