F 150 Heritage 4WD Pickup V6-4.2L VIN 2 (2004)
Wiper Motor: Testing and Inspection
WINDSHIELD WIPER MOTOR
Use the Alternator, Regulator, Battery and Starter Tester (ARBST) to test the wiper motor on the vehicle.
To test the wiper motor, disconnect the windshield wiper mounting arm and pivot shaft from the windshield wiper motor.
Disconnect the wiper motor. Connect the (1) green lead from the (2) ARBST to the battery negative (-) post. Connect the (3) red lead from the ARBST
to the wiper motor (4) common brush terminal (terminal 3).
Test the low speed mode by connecting a (5) cable from the battery positive (+) post to the (6) low speed brush terminal (terminal 4) and measure the
current draw. If the current draw is greater than 3.5 amperes, install a new windshield wiper motor.
Test the high speed mode by connecting a cable from the battery positive (+) post to the (7) high speed brush terminal (terminal 5) and measure the
current draw. If the current draw is greater than 5.5 amperes, install a new wiper motor.
