Is any voltage indicated?
Yes
REPAIR Circuit 56 (DB/O). CLEAR the DTCs. TEST the system for normal operation.
No
GO to B12.
B12 CHECK CIRCUIT 58 (W) FOR SHORT TO POWER
Measure the voltage between wiper HI/LO relay connector Pin 4, Circuit 58 (W) and ground.
Is any voltage indicated?
Yes
REPAIR Circuit 58 (W). CLEAR the DTCs. TEST the system for normal operation.
No
REPLACE the windshield wiper motor; REFER to Motor—Windshield Wiper. CLEAR the
DTCs. TEST the system for normal operation.
B13 CHECK CIRCUIT 671 (LB) FOR VOLTAGE — WIPER/WASHER SWITCH IN THE PARK POSITION
Turn the wiper/washer switch to the park position.
Measure the voltage between wiper run/park relay connector Pin 4, Circuit 671 (LB) and
ground.
Is the voltage greater than 10 volts?
Yes
GO to B14.
No
REPLACE the wiper run/park relay. CLEAR the DTCs. TEST the system for normal operation.
B14 CHECK CIRCUIT 671 (LB) FOR SHORT TO POWER
Windshield Wiper Motor C165
2000 Expedition/Navigator Workshop Manual
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSYJ/~MUS~LEN/20
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