Quote:
Originally Posted by ls1nova71
Looking at the air conditioning schematics for a 2004 Corvette, there is no mention of a 12v A/C request, but there is a serial data line from the A/C module to the PCM. However, in the PCM schematics there is one at C2 Pin 17 that says A/C request then in parentheses 'C60 only' so not sure what that means? But, C2-17 is where the request in on the older PCM's that had 12v requests, so it may work. You'll have to keep us updated, because I'd like to know if it works.
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I will. It might be a while- I just had major rotator cuff surgery so it might be a bit before I can crawl under the dash. I'll get that tech II from the dealership again when I do it and see if the pcm can see the input change.