A/C compressor not working properly

Van listed above is the XLE model, 2WD.
A/C would shut off for very short periods but turn on within a couple of minutes at first. Over the next couple of months it got worse. Last week I never new how long it would run. Now it doesn't come on at all.
During the time it would run I used some gauges to check the if the system was low of refrigerant and to check the pressures. Not low and the readings matched the ambient temperature. Example low 94 degrees low side 47 high side 232.
I replaced the clutch relay and compressor still won't come. I pulled the relay and checked the pins and there is power to the relay coil and to one side of the contact when I turn on the controls in the cabin.
I jump the pins to the clutch at the relay pins base and clutch does not engage.
When the compressor was running it sounded the same as the day I bought the van 5 years ago.
How can I test the A/C clutch? Could the pressure switch be bad and where is that?
Given this information what should I do?