A/C Compressor will not turn on

There is a fuse #30 (10 amp) in the under-hood fuse panel let's check it for power. here is a guide to help and the fuse location along with the wiring diagrams for the A/C compressor so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

I just checked all the fuses, and they are good, then they unplugged the relay plugged it back in and I felt a click, I looked down at the compressor pulley and it is running but very slowly.

When I unplugged the relay, the compressor completely stops.

Okay, so lets pull the plug on the compressor and measure the voltage to the compressor with the system on it should be 12 volts. One wire will have no voltage. This guide can help you with the test.

https://www.2carpros.com/articles/how-to-use-a-voltmeter


Please run down this guide and report back.

Okay, here’s an update: I check the voltage on the plug at the compressor dark green wire has 14 V the light green wire has 1.12 V.

That's with the engine running.

Good job. Now let's check the ground circuit (black wire). It is connected to the body near the fuse panel. You can do an OHMs check. If this is okay, you got a bad compressor. Can I ask which brand the compressor is?

It is a RYC remanufactured compressor.

Is the third wire on that compressor connector the ground the black wire.

Yes, it is, I would have used an AC Delco compressor. The quality of some rebuilds are questionable.

Lesson learned. I just want to say thank you very much for all your help.

Good to hear, please use 2CarPros anytime we are here to help.