Front a/c doesn't work

Hello, Scan it first. Make sure the scanner can read body control codes. The compressor is being turned off, or the relay is not feeding it power. Test the relay to find if it energizes when the switch in the interior is turned on as well. Also, inspect the circuit to find if there is proper continuity with no shorts along the way. Don't forget to check the grounding straps/ground wires. It is also possible that the A/C control module is turning off the compressor because of an issue in the refrigerant system, or due to a failed sensor which mimics a failure in the refrigerant system.