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 positive (+) lead from terminal 3.





b. Connect terminals 3 and 4.
c. Connect the positive (+) lead from the battery to terminal 5 and 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.
*: Turn ignition switch ON
If circuit is not as specified, inspect the circuits connected to other parts.

WIPER ANGLE CONTROL MOTOR INSPECTION
INSPECT MOTOR OPERATION





a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 6, check that the motor operates.





b. When the motor is operating. check that current flows alternately between terminals 1 and 2. terminals 1 and 3. and terminals 1 and 4.
If operation is not as specified, replace the motor.