Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello, where are you jumping the circuit for the compressor to come on? Does the cooling fans work when then compressor comes on when jumped?
You are unplugging the coil and hooking up power and ground directly to the compressor or you are backfeeding the circuit through the connector? do you have power and ground at the compressor coil connector?Did you have power at the low pressure cycling switch and have you jumped it from there and compressor and fans come on?
Ok if the pcm isnt seeing the ac demand(ac switch on input) it will not ground the relay.So need to see if any pcm codes are stored.If no codes are stored then need to verify the continuity of the ground circuit from the pcm and to the relay assuming the rest of the circuit is working properly.Before condeming a bad pcm.