Component Test
Windshield Wiper Motor
CAUTION: Do not handle the wiper motor abusively when diagnosing the wiper operations. Failure to follow this caution may result in damage to the motor magnets and
will make the wiper motor inoperative. Rough handling of new wiper motors may also damage the motor magnets.
Use 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. For additional information, refer to Mounting Arm and Pivot Shaft in
this section.
Disconnect the wiper motor. Connect the (1) green lead from (2) ARBST to the battery negative (-) post. Connect the (3) red lead from 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 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.
wiper HIGH/LOW relay pin 4, circuit 58 (WH), harness side and ground.
Is any voltage indicated?
REPAIR the circuit as necessary. REPEAT the
FEM self-test. CLEAR the DTCs.
No
GO to G13.
G13 Component Test
Carry out the component test for the windshield wiper motor in this section.
Is the wiper motor OK?
Yes
The system is operating correctly at this time.
Concern may have been caused by a loose or
corroded connector. CLEAR the DTCs. REPEAT
the selt-test.
No
INSTALL a new windshield wiper motor. REFER
to Motor — Windshield Wiper in this section.
Page 16 of 172003 Windstar Workshop Manual
8/17/2010http://www.fordtechservice.dealerconnection.com/pubs/con...
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