2010 A/C Compressor won't kick on
So first the background.. We bought our 2010 murano SL in 2013 with 38k miles, it now has 73k. We haven't had a single problem with it until now.
On a recent road trip, in the blazing Texas heat, our a/c started blowing hot. So a few miles down the road we stop and I pop the hood, and see the compressor isn't running, so I figured it may just be low on freon. When I got home I put some gauges on it and had a can of freon to put in it, but when hooking up the gauges I saw it had tons of pressure in the system (I don't recall the actual reading, but it was high, higher than it probably should be?). So the system definitely isn't low on freon, maybe its too high and I need to bleed some off??
Anyways, I figured I will start troubleshooting the compressor. I checked the fuse, since that's the easiest.. But it was good. Is there a relay somewhere? Next I was going to check the pressure switch, which I located (on the top side of the compressor) but haven't gotten to yet. I just haven't had the time. But I want to make sure it is good, and then jump the compressor to see if I can get the clutch to engage. If it doesn't, I guess I have a bad compressor...
Am I on the right track? I have a lot of experience working on vehicles, but not so much with newer, imported vehicles. I have searched and searched but haven't turned up much so i am assuming this isn't a real common problem with these models or maybe people with muranos just take them straight to a dealership or shop? (That's not my style.. I prefer to do the work myself to save a little money..) Should I be looking at something specific or do the compressors just fail on the vehicles? Could it be some sort of other electrical problem? Are these compressors or systems similar to the older year models or other Nissans? Is there a diagram for the a/c system?
Thanks in advance and i really appreciate any help!