Any help on where to start? i'm not real electronically saavy. I just followed the directions online that said to pull the AC Compressor Clutch relay and jump the B1 terminal to the B4 terminal. I will start looking into it though and try and figure it out.

 

Well im not sure because i dont have a diagram so, i cant tell exactly which terminal is for what on the relay. but you should have 2 wires that receive 12 volts with the key on, one that has ground all the time, and one grounded by the computer when it decides to turn the compressor on..... At least thats how they are usually wired.

I would start with the coil ground for the relay (the one grounded by the computer). But you need a diagram to know which one it is. Unless you can get a logic probe or power probe, then it would be the one that doesnt light the probe at all. DO NOT USE A REGULAR TEST LIGHT. IT CAN DRAW TOO MUCH CURRENT AND FRY A COMPUTER. A logic probe is computer safe and so is a DVOM. AND IF YOU USE A POWER PROBE DO NOT APPLY POWER OR GROUND TO ANYTHING THAT MAY BE HOOKED UP TO THE COMPUTER. May blow computer too.

 

Disconnect the low side pressure switch on the suction line and measure across the switch with the ohms function.
Measurement should be less than zero ohms, if pressure is high enough, and it should be with it off after 30 minutes of working.
If switch is closed, it is good, then short across connector, comp might come on.
After this check, follow green's suggestion of relay troubleshooting.

 

Awesome. I will have to get my multimeter out and give that a try when I get off work. I was curious if a code reader may be needed as well? Thanks for all the help!

 

So what did you find. What was wrong and how did you fix it?

Did you replace the pressure sensor? Was the wiring bad?