Terminal designation
The designation of the terminals of the electric motors of the glass cleaners is standardized.
Windshield wiper motor:
- Terminal A1 is energized for the first wiper speed.
- Positive potential applied to terminal A2 (+) to install the wiper in the original (final) position. Voltage is applied to the sliding contact (brush) engine until it stops after applying the appropriate «teams» driver or central switching unit.
- Terminal B1 is energized for second wiper speed (shunt winding).
- Through terminal C1, the motor is braked after the wiper is switched off to prevent the wiper from overshooting the park position.
- Terminal C2 is «weight» (-) (see illustration 7.0).
7.0 Wiper Motor Terminal Assignment
Rear window wiper motor. Power plug 3-pin:
- Positive potential applied to terminal 1 (+).
- Terminal 2 is «weight» (-).
- Positive potential applied to terminal 3 (+) to install the wiper in the original (final) position.
Checking the wiper motor
First, find out what is wrong: the motor or no voltage to it. To do this, proceed as follows:
1. Disconnect the multi-pin plug from the motor.
2. Power the motor by running 2 auxiliary wires from the battery (+) And (-).
Run one wire from the positive pole of the battery to terminal A1 or B1 (at the rear window wiper motor to terminal 1), and the second lead from the negative pole of the battery to terminal C2 of the windshield wiper motor (at the rear window wiper motor to terminal 2).
The wiper motor should now run, depending on which terminal is energized, at speed 1 or speed II. If this is not the case, then the engine or one of the stages of rotation of the electric motor is faulty. Dismantle the electric motor, see relevant chapter.