Thank you for your help.
I have tested my low and high switches and the ambient temperature sensor all tests good. I have swapped out the AC relay with a known working one of the same number. I can make the compressor turn on by jumping across pins 30 and 87.
Today I went to look at a few more things on my truck and it wouldn't start. I would turn the key to crank, but the engine wouldn't turn over. I checked for voltage at pin 30 of the start relay and had 12 volts. Nothing at the other pins when key was turned to crank. I also tested to see if the relay activated by completing the ground circuit saw no changes. I could jump across pins 30 and 87 of the start relay and the engine turned over and started. I load tested the battery and it was good. Now all I can do is step back, scratch my head and say hmm.
Friday, May 26th, 2023 AT 9:17 AM