A/c Wiring Help !

ROB_D

New Member
Apr 24, 2014
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I am trying to wire up an A/C from a 99 mustang transplanted in a 69 Mustang. I mainly need to know which wires do what on the A/C circuit. I have a 4 pin switch mounted on the accumulator and a two pin on the high side ( I think ). I wont be using the CCRM a it doesn't exist. I have found a few diagrams, but they all show the PCM, Im sure it can be wired stand alone.
thanks
 
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I don't know much about the rest but I know how to wire up the compressor. Just find which of the 2 wires activate the clutch. One is power one is ground I think so just run 2 wire from battery positive and negative and put them to the 2 wires on compressor if u don't hear the compressor click then switch up the 2 wires then u know which is positive. Then just wire it to a switch. It's kind if hard to explain in words lol I could do it better in person.