AC Questions

My AC recently went out in my 2013 Prius C. The compressor is not turning on and there is plenty of pressure on the low pressure side, so I'm not thinking it's a low pressure switch. Is there a relay for the AC compressor? I can not find one in my book or in the boxes. Also, which fuse controls the compressor? I saw the 7.5 under the dash and it is fine, but the compressor needs more than that, so I'm guessing there is something else? It never made any bad noises and was working well. Then it just stopped.
Thank you for and info.

 

Thank you. That did work on the C also. I got error code 13 which appears to be a temperature code from the evaporator sensor.
I'll start looking at wiring.

 

Solved. It was the evaporator temperature sensor, aka heater core sensor. It plugs in on the lower driver's side. To verify, unplug the old one and plug in the new one. The compressor will turn on, if that was it. I took the whole dash out and put it back in to find the issue. It took about 1.5 hours. Not a bad job. Mostly snap fit besides the 4 clips and several screws. I find the part at advanced auto. $38. I did not pull the evaporator, instead I cut a hole. Nothing pella couldn't fix.

 

You can access the plug without removing the dash. Unplug your old sensor and plug in the new one. Whether you install it in the evaporator or not, it will allow the compressor to turn on. To replace it, you either have to pull the dash and take apart the housing, or you can remove the lower part of the dash and console be carefully cut a hole in the housing and pull it out. There may be other ways, but I had to hold dash out to find out.