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Not a diy. Video shows a few steps that lead me to the problem for this vehicles AC clutch not engaging.
Fix for this was bypassing the PDC (fuse box) for just the AC relay. Replacing the PDC would have also fixed the issue but at a much higher cost. May do a video on adding a relay to bypass the PDC in the future.
If you replace the PDC it does not need to be programmed.
Assuming the system is full and the pressure switches are good, if shooting power to the ac clutch fuse makes it work - then chances are your PDC is bad. Be sure to properly diagnose the vehicle.
I posted a second video to explain bypassing the internal Pdc relay. It’s not a diy but with basic mechanical knowledge it can be done.