AC compressor clutch problem

The low and high side pressure is good. I also checked the voltage on pin 85 when I turn the AC but I think I will need to check voltage on that pin in circuit. Since high side is normal closed I will close the circuit on low side connector to see if the problem is there. If I am still having the same issue I will bypass the PCM ground to see if I can get the compressor to click on. If I can confirm all the switches are working correctly and bypassing the PCM works, I will try to replace PCM.

ASEMASTER6371
Yes, I charged the system myself and all the pressures look good.

I did some testing and the results are pretty strange. With car on and AC on I only get voltage on one side of the low pressure switch (2 pin). This is strange because I replaced the low pressure switch when I replaced the accumulator/ drier. I tried to complete the circuit with a paper clip inside the connector but still not getting voltage on the other pin. Then I basically bypassed the connector by linking the two back probes with test leads, but still do not get compressor to turn on. I thought I had two issue because even after link the connections by connecting test lead to back probe, I am still not getting voltage inside the connector on one side. So assumed I have a bad connector. Then to my surprise I do not see voltage on either pin on the high pressure switch. I apply power to one pin but I do not get voltage on the other one. When trying to complete the circuit on the high pressure connector with paper clip, I still do not get power on the other pin. I highly doubt that I have two bad connectors. I basically bypass all the connectors going to the PCM but still cannot get compressor to turn on. I was also able to get the compressor to kick on if I use the battery ground for the relay instead of the PCM. Anybody have any ideas? I am ready to just get a junkyard PCM and if that does not work I will just rig up a switch. LOL. But it is really bothering me not knowing what is causing this problem.

So the switches are not in series they get power independently from the power head? Also, I applied power directly to the line going the the PCM and I am not sure why the compressor would not kick on if the PCM is getting power on that line.

With low pressure jumped relay does not activate. There definitely seems like there is an issue on the control side since compressor comes on when I use battery ground instead of the PCM ground. It is weird that when I apply power to the PCM the relay is still not activating.

Not power to PCM ground. Applied power to the wire on the high pressure switch. According to your picture I applied power to C150.

With key on and AC pin 85 is grounded and pin 86 has about 12 volts. It is strange. I am going to try replace the PCM. Do I need to pull PCM from a Grand Marquis or can I use one from a Crown Victoria 1992-1996 or Lincoln Town Car 1992-1996?