MG CLT is the typical abbrev for relay.
if it isn't a relay or a fuse, AC failure can be that the clutch coil is broken, which won't engage your AC. you can see the wire in the top of the diagram, its the coil inside the AC clutch. or your system has lost coolant and a pressure switch will stop the compressor from kicking in, or the pressure switch is bad.Yes. Blower works normally at any speed setting. I will check the pipe temp as you suggest. Thanks.
well i honestly thought the diagram i posted was from the 2016.. oh google failed me.. again.. i went out and looked at my 2016 and it totally isn't what i posted. thanks for the feedback and informationThe 2016 uses a variable displacement compressor, there is no magnetic clutch. You will never hear the clicking sound of the old magnetic clutches. Visually it will appear that the compressor is running because it's always spinning there is no clutch that cycles. There are valves in the compressor that controls output and pressures and it depends on the pressure in the system and several sensors monitored by the HVAC module to determine output..
As recommended earlier you can feel the low pressure line (the big one) and feel if it's cold and see if the cooling fan is running. If the line is not cold but the fan is running it's a indication that the command to turn on the A/C has been received. The electrical side should be OK if this is the situation but there is a problem mechanically which could be a number of things. The best thing to do is to take it to an expert that can access the HVAC module to scan for fault codes and do a proper diagnosis.