I'm having trouble with the windshield washer pump not working. New tank, pump, and level sensor. Washer doesnt work. Ideas? wire diagram?
Also coolant level says low. it's not low and new level sensor didnt help.
Washer pump inop and low coolant warning.
Discussion in 'International Forum' started by jmlloar, Feb 14, 2024.
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BTW its an 09 Prostar with ISX15 and 13sp
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I had similar issue with the washer. Turned out to be a wire that had rubbed through. Not sure where to find a diagram. I believe it was under the dash though.
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Washer pump will have power with the key on all the time. Wiper/washer switch supplies the ground. Check for power at one of the washer pump pins. No power, the check the fuse in the cab in front of the passenger seat. If the wipers do sweep when you press the switch, then switch and ground path in the cab is working, signal to the body controller is ok.QUALITYTRUCK and jmlloar Thank this.
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