Contact designation
The engine terminal designations are standard. The bold numbers correspond to the standard designations, and the numbers in brackets correspond to the Ford designations.
- Contact 31(1) - connection to ground.
- Contact 53(4) - voltage is supplied for the first speed of the windshield wiper.
- Contact 53a(2) - positive voltage is supplied to switch off the motor in the initial position: the motor receives voltage via the sliding contact until the wiper blades reach the initial position after the driver switches off the wiper.
- Contact 53(b)(5) - supplies voltage for the second speed of the windshield wiper (additional winding).
- Via contact 53(e) - the windscreen wiper motor is braked during the return stroke after switching off, so that the windscreen wiper does not move out of its original position.
Checking the windshield wiper motor
First, you need to find out where the fault is: in the engine or in the voltage supply circuit. To do this, do the following:
- Disconnect the plug from the windshield wiper motor.
- Using two auxiliary wires, connect the battery terminals to the engine as follows:
- connect one wire from the positive contact of the battery to contacts 53 (4) or 53B (5);
- connect the second wire from the negative terminal of the battery to terminal 31(1) on the engine.
- The wiper motor should now run at either speed 1 or 2 depending on which contact is connected. If it does not, the corresponding motor winding is not working.