I'm looking at my schematics to properly wire up my A/C system (IE no bypassing or tricking the PCM with resistors) to work as OEM. I'm finding lots of conflicting info, and some missing info.

Some problems I've yet to figure out:

The 0411 PCM references a high pressure 3 prong switch. The thirdgen uses a two prong switch on the A/C compressor. How is this wired up correctly?

The thirdgen pressure cycling switch is on the accumulator/dryer. Easy enough to wire that in, but what do you do with the switch on the high pressure line on the passenger framerail? Is this no longer needed?

The way I see it, if the 0411 PCM requires inputs from sensors that are not there (3 prong hi pressure sensor) instead of just an open/closed switch (like the thirdgens) I want to make sure it's done correctly. Seems to me there's several ways it's been done on here but the information is always incomplete. What is the RIGHT way to wire up the A/C?

 

I don't have any of my schematics handy (at work currently), which pins was the original 2 wire setup attached to on your original pcm (what where they listed as, not just pin number)? And what are the pins for the 0411 3 wire setup (numbers and labels)?