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Old 05-30-2019, 12:49 AM   #21
First c10
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Join Date: Dec 2012
Location: Los Banos CA
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Re: Vintage air question

Follow up to this thread.

The gen 4 stuff needs a special canbus box to tell the pcm that the ac is on for the pcm to control the fans during the use of AC.
So on to a trinary switch if a relay to turn on the fan when the ac calls for the ac clutch to engage.
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1956 Chevy 210 4 Door
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1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E
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