Apply voltage from the positive battery terminal to terminal E or D; connect terminal B to the body ground, check the operation of the windshield wiper motor as shown in the table.
Disconnect the positive battery terminal from the E terminal of the electric motor with the windshield wipers operating.
Make sure that the windshield wipers do not stop in their original position.
Connect terminals A and D of the motor and connect terminal C to the positive terminal of the battery.
Fig. 7.58. Windscreen wiper motor test diagram
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Make sure that the windscreen wipers operate again at low speed, then stop in the starting position (Fig. 7.58).
If not, replace the windshield wiper motor.