well I thought I had the AC fixed. a week later, no AC. checked voltage at the TIPM output to the compressor and its going to 0V again. If I unplug the compressor i get 12V at the TIPM and at the compressor plug hot wire. checked all the wiring, no shorts to ground. checked continuity through the coil and get 4ohm. put 12V directly on the coil and it clicks and engages.

so my genus self made a jumper with a switch, hooked up to the compressor and everything was fine for about 2 minutes, then the pressure relieve valve blew. so is the compressor now bad? im getting sick of working on this truck and its 100+ outside now.