2018 lt625 a/c troubleshooting checklist

[DVT873]

Post the last 8 of your VIN, and I can get you a copy of the 4000-plus-page technician manual for your truck and the circuit diagram manual. The manual will show you more than you may want to know! The new circuit diagrams are a struggle, at least for me. They are now "interactive." I have not had to use them more than 3 or 4 times. They are engineering-based and have a LOT of information, but for me are a bear to navigate. Rawze will probably navigate them with no problem!
A note on A/C. Think about replacing the belt and tensioner. Use OEM if possible. Over time, both wear and the belt starts to slip. Slippage builds heat in the clutch, changing the coil resistance, which changes the amperage going to the coil. The body computer watches this like a jealous bride, and if it goes out of a pretty narrow range, power to the clutch is shut off. This gives a code of something like "clutch current above/below spec" which can baffle the shi#t out of you if you've not run into it before.
FWIW, almost all OEM's have been using some variation of this for a long time.