Component Tests and General Diagnostics

INSPECT WIPER AND WASHER SWITCH CONTINUITY
If continuity is not as specified, replace the switch.







INSPECT WIPER AND WASHER SWITCH CIRCUIT
Connector disconnected:
Disconnect the connector from the motor and inspect the connector on the wire harness side, as shown.
If circuit is not as specified, inspect the circuits connected to other parts.




INSPECT WIPER MOTOR OPERATION
Low Speed:
Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, check that the motor operates at low speed.
If operation is not as specified, replace the motor.




INSPECT WIPER MOTOR OPERATION
High Speed:
Connect the positive (+) lead from the battery to terminal 3 are the negative (-) lead to terminal 4, check that the motor operates at high speed.
If operation is not as specified, replace the motor.

INSPECT WIPER MOTOR OPERATION
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 5.




b. Connect terminals 1 and 5.
c. Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 4, check that the motor stops running at the stop position after the motor operate again.
If operation is not as specified, replace the motor.







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




INSPECT WASHER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, check that the motor operates.

NOTE: These tests must be performed quickly (within 20 seconds) to prevent the coil from burning out.
If operation is not as specified, replace the motor.







INSPECT WASHER MOTOR CIRCUIT
Connector disconnected:
Disconnect the connector from the motor and inspect the connector on the wire harness side, as shown.
If circuit is not as specified, inspect the power source, wire harness and wiper switch.