gbabione Posted February 20 Report Share Posted February 20 Hello everyone, I'm new to the forum. I have a 2004 Monte Carlo ss. My windshield washer fluid pump is not working. I tried a new pump and multi-switch. Which wire is the ground in the pump connector? I want to see if it's a ground problem. Any other ideas? Quote Link to comment Share on other sites More sharing options...
Schurkey Posted February 21 Report Share Posted February 21 My much-older Lumina ('92) had a dead washer pump. No voltage to the pump, fuses and other wiring seemed OK. Discovered that the electrical signal to turn the washer pump "on" went through the wiper motor circuit board. The wiper motor board had a fault. And no replacement circuit boards available. Had to scavenge parts from the Treasure Yard. Things may be different, your vehicle is way newer than mine. Verify with the service manual set for your vehicle. Quote Link to comment Share on other sites More sharing options...
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