Ok so this is totally out of my league and I'm wondering if the mechanic I am dealing with is trying to get over on me.
The A/C compressor clutch was not engaging so I took it to the mechanic shop I have been doing business with for years. They determined the problem to be a bad AC clutch relay wire. They are saying that to fix it I will need a new wire (obviously) and a new ECM. I cannot get a straight answer as to why the ECM is needed. Everything else on the car works fine. Does this sound legit to you guys?