AC Troubleshooters needed

[SHO Continental]

Working on the AC (and a few other things if you saw my CEL thread) on my brother's '92. Changed the AC compressor/clutch as the old clutch was dead and IMO it's easier to change the whole unit. Not getting any voltage to the clutch. Jumped the pressure switch and still not getting any voltage. What sends power to the AC clutch switch?

 

[goalieman59]

I just went through this, it most likely is the CCRM, it is under the plastic thing above the radiator. you can get one used or you can get one new from oreillys

 

[hawkeye18]

I believe a 92 uses an "M" code CCRM, so if you go here:

http://www.shoforum.com/showpost.php?p=738911&postcount=16

you'll see that the clutch is fed from pins 23(+) and 16(-). Hopefully this will help you.

I've found that removing CCRMs and smacking them against a hard flat surface can help 'unstick' the relays inside of it. I call this "having a conversation" with them. Also, "Italian tune-up". It's worth a shot. Just don't smack too hard.