Since you stated that at times the wipers and the washers do not work, I would start by checking the power and ground circuits for the windshield
wiper motor, the windshield washer motor and the multifunction switch.
Power is supplied to the
wiper motor from the 30
amp fuse (F1. 24) in the Auxiliary Junction Box under the hood and the 3
amp fuse (F2. 26) in the Central Junction Box in the passenger compartment kick panel.
Ground point G203, is located below the right side of the dash panel, ground point G202, is located at the left A-pillar and ground point G101, is located at the left front of the engine compartment.
Inside the
wiper motor is a microprocessor, along with the wiper and washer relays. There are pinpoint tests that can be performed to determine if the
wiper motor or the multifunction switch is defective.
doug7740
1955 Thunderbird blue
View attachment 32047
View attachment 32048
