I need a big favor from someone who owns a 84 300TD..if you would be so kind to pop your hood and take a pic of your AC Dryer showing the wiring from the dryer to the relays and the wire going to the AC Clutch. Thanks for any help.

 

I have no idea if this will help,however the evap temp sensor has a lead that goes direct to the AC control and two wires, one goes to the incar temp sensor and one goes to the right side heat exchanger temp sensor!!

The AC clutch is simple, two wires, one to ground and the other to the compressor shutoff relay!!

 

I hope this helps. From my '84 300D-T.