A customer brought in a 94 Civic with an AC concern. The system is tight
and charged but the compressor won't engage. I was able to check the
system back to the AC relay and found that whatever grounds the
relay...doesn't. I don't have a wiring diagram, Is there anything
between the coil ground pin of the relay and the switch on the
instrument panel? I suspect the switch. If I had the pinout for the
switch I can troubleshoot from there. Can anyone provide this
information? IIRC there are 5 pins on the switch. I've got 1 pin with
switched power and 1 ground for sure. I imagine 1 is for the
illumination of the switch. That leaves 2 unknown terminals.Any input
would be appreciated.
Thanks, Tom