Wiper Motor: Testing and Inspection

WIPER MOTOR INSPECTION

1. INSPECT MOTOR OPERATION





Low Speed
Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1, check that the motor operates at low speed.
If operation is not as specified, replace the motor.





High Speed
Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, check that the motor operates at high speed.
If operation is not as specified, replace the motor.

Stopping at Stop Position





(a) Operate the motor at low speed and stop the motor operation anywhere except at the stop position by disconnecting the positive (+) lead from terminal 3.





(b) Connect terminals 3 and 5.
(c) Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 1, check that the motor stops running at the stop position after the motor operates again.
If operation is not as specified, replace the motor.








2. INSPECT MOTOR CIRCUIT
Disconnect the connector from the motor and inspect the connector on the wire harness side, as shown.
If the circuit is not as specified, inspect the circuit connected to other parts.