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Help: Blower Fan Not Working and It Is Not The Blower Resistor


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Hello All,

I have a 2006 Cayenne S, and last week the fan was blowing and all of the sudden quit working. I did smell something burning, but not sure if the source was outside of the car.

I naturally thought the issue was the blower resistor, so I ordered one and just replaced it. However, still have no fan. I checked for DC current going into the blower motor and no current. I also, checked the brown wire coming out of the resistor is no current as well. I don't have an external DC source, so I can't really check the blower motor. I checked all the fuses on both sides of the dash and in the engine compartment. The interesting thing is when I click on the front defrost, no blower. I've read that is separate from the blower motor, and should work.

Have anyone experienced this issue? Maybe suggestion on what the issue is? Maybe a relay?

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Update... I decided to reboot and restart my diagnoses from the beginning.  I discovered that the 40 amp fuse in fuse holder 56 had blown.  It must have somehow blown while I was replacing the resistor pack.  Once I replaced the fuse, everything was working :clapping:

 

Thanks everyone for chiming in.  Here is a link on information about the blower motor that I found interesting and helpful:

http://www.renntech.org/forums/topic/48293-no-air-conditioning-2005-cayenne-turbo/

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