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Old 05-23-2020, 11:02 AM   #1
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Join Date: Feb 2018
Location: Michigan
Posts: 33

2004 ION-2 Quad Coupe
Default 2004 vue 2.2 p0480

im having a problem with my low speed cooling fan. problem it runs non stop whenever the engine is running. key on engine off it doesnt run. i have checked the fuses the relays and even swapped the relays with the high speed relay. i replaced the coolant temperature sensor, cooling fan resister located behind the driver headlight (i replaced the correct one not the DRL resistor) what happens is the cooling fan is always running. i checked and got code P0480, if i clear the code the fan shuts off and turns back on a few seconds later. i know clearing the code doesnt fix the problem but when the code comes back it comes back as a pending code, then the next key cycle it triggers the CEL

i did some research on this forum and removed both relays and jumped terminals 30 and 87 on both low speed and high speed and the fan runs when doing this

i also read the AC pressure switch might have something to do with it so i unplugged it and didnt change anything. im out of ideas so if anybody has any other suggestions? im not that good at electrical diagnosis but with this Covid-19 stuff i have been laid off and cannot really afford to take to a shop which is usually what i do when stuff becomes too much for me which is why any help is appreciated

i do own a multimeter. the vehicle is a 2004 VUE 2.2 5 speed
2004 Saturn Ion Redline
2004 Saturn VUE
2002 Chevrolet Trailblazer
1980 Ford Pinto Prostreet
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