Cooling fans not working in my 2003 C5

by Les
(Gold Canyon AZ)

The cooling fans are not turning on. When I am driving on the highway my car does not heat up but does in stop and go driving. I checked to see if one of the fans comes on when I turn on the AC but I don't see either one of them turning on. I have checked the 2- 30 amp fuses under the hood and they are fine. I saw some people say that there is another fuse box in the passenger side foot well. Is there other fuses for the fan control in there? Also I am curious about fan relays. I see some schematics that have a fan control relay and they also have an auxiliary fan control relay. Can someone clear up what each of these relays controls. Thanks in advance for any advice.

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Jun 29, 2019
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cooling fans C5 NEW
by: Anonymous

having the same problem with the one I just bought. looking for answers. thanks.

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