Thread: AUX fan woes
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Old 09-13-2020, 10:52 AM
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Originally Posted by andrewwynn View Post
I'm not so sure about that. I only thought it turned maybe 1/6 to 1/4 of a turn for its self test I'm going to look a little closer it's hard to do yourself.

If you remember your basic electricity, a dc motor free spinning becomes a dc generator. The electrical signal generated by this spinning is sent back to DME. The DME recognize this electrical signal and log the fan as good. If the DME don't see this electrical signal it log a bad fan fault code.
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