1995 Accord EX, have the wiring diagram, couple of my colors don't match, have traced most of it out, a/c clutch and both fans will come on only when I ground the red/white wire at the pressure switch, I don't know where the blue/yellow goes, I assume into the car and the thermo switch which I can't find? Jumping the switch does nothing, so asume the blue/yellow trigger is bad.

 

Your problem is somewhere on the ground side of the circuit.

I think that you will need to work backwards to find out where you are not getting ground. The order from the red/wht wire is a/c pressure switch>a/c thermostat>a/c switch>heater fan switch>ground.

The Online Manuals thread in the DIY section has links to site with a 94 shop manual. It looks like pg 22-16 starts the diagnostics that you need. 22-5 has a wiring diagram that should help out a lot.

 

Well, finally messed with it again, the thermo switch was bad, and also a trace on the heater switch circuit board was lifted and fried. I soldered in a jumper for the board for now, and a new thermo switch, and all is good.