Ranger 4WD V6-3.0L VIN U (1997)
Wiper Motor: Testing and Inspection
CAUTION:
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Do not handle the windshield wiper motor abusively when diagnosing wiper operations, as it will damage the magnets and make the windshield
wiper motor Inoperative. Rough handling of new replacement wiper motors may also damage the magnets.
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To test the windshield wiper motor on the vehicle, disconnect the windshield wiper mounting arm and pivot shaft from the windshield wiper motor
and disconnect the electrical plug.
Connect the positive (red) lead from Rotunda Alternator, Regulator Battery and Starter Tester 010-00725 or equivalent to the common (c) terminal of the
windshield wiper motor, and connect the green lead from the tester to the battery negative post. Connect a jumper wire from the battery positive post to
the low speed terminal of the windshield wiper motor and read the current draw. The current draw should not exceed 3.5 amperes. Move the jumper
wire from the low-speed terminal to the high-speed terminal and read the high-speed current draw. The current draw shall not exceed 5.5 amperes.
