Question about 2003 Dodge Caravan

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I have a 2003 grand caravan that has an electrial problem only when it is raining. The cooling fan will stop working along with the power door locks, radio, wipers and heating unit. If i remove the fuse for the cooling fan everything else will work. This is only a problem when it is raining, that is a big problem because the wipers don't work. I have looked at the wiring around the cooling fan and i do not see any visable bare wires. The last time this happened it illuminated the check engine light with trouble code P1491. Any information i can get to trouble shoot this problem would be greatly appreciated. Thanks, Norm

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  • nslynch3 Mar 04, 2009

    Thanks for the reply but i have had the alternator checked when this problem is present and it is fine.

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HI!!!!!! P1491 means radiator fan relay control cir. .. the best thing you can do is run the car for about ten min.if tac is digital feel it w/ you hand if is hot . is you alternator .if is not digital. take apart the alternator bring it to local autozone have them chek for you . dont forgot to change the relay,,,,,

Posted on Mar 04, 2009

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