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Old 05-25-2020, 08:15 PM   #2
bern
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Join Date: Apr 2009
Location: San Diego CA
Posts: 623
 

2006 VUE 3.5L
2004 ION-2 Sedan
Default Re: 2004 vue 2.2 p0480

The DTC P0480 is for the ECM detects an open on the low speed cooling fan relay control circuit. I suspect the ECM is switching on the high speed fan because the low speed control circuit has an open.
Recheck the 20 amp cool low fuse. also check that both legs of the fuse fits tight in to the fuse block terminals. (an old fuse with one leg cut off makes a good terminal tightness tester). You can also remove the fuse block then inspect all of the terminals on the bottom of fuse block and in the harness connector. If you are over 40 use reading glasses and a flash light. inspect for burnt terminal and or melted plastic. When reinstalling the fuse block don't forget to tighten the (3) 7mm bolts.
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