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Title: Map for Aux Fan temp trigger? Post by: dokalanyi on March 12, 2017, 09:18:57 PM Hi All,
Is there a map that determines at what temperature the aux fan comes on? Mine only comes on when AC is on. Can I make it come on at operating temperature as well? Car is a Passat B5, 1.8T Title: Re: Map for Aux Fan temp trigger? Post by: nyet on March 12, 2017, 09:44:24 PM Fan control module, input is the afterrun coolant temp sensor, ac compressor status, and i think there is an ac compressor temp signal as well.. It is not in the ECU.
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