Quote:
Originally Posted by Destro408
I meant running the 12v to see if the compressor kicks on and clutch engaged, I also had a question about if it’s safe to do a brief 12v to the pressure switch to rule that out, I’m not fully amateur I’m just new to this platform. Have fully rebuilt e39s and my current e90
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This post tells us all we need to know. You don’t understand how the system works. Does your AC have a clutch or is it variable displacement? Using a BMW capable code reader are there any codes related to climate control? Why do you think putting 12v to a switch that is designed to send a signal by completing a path to ground is a good idea?
It’s not a ‘74 Matador.