The tipm module tells the pcm to turn it on so as long as the connector is disconnected from compressor yes. If you took it to an auto parts they can't read the codes with their scanner that only does engine/trans codes nothing else. It may be a wiring issue between either hvac module to tipm then to pcm. Something is n't getting a signal to run. I would try to replace the TIPM because its easy and self initializes. Here are the diagrams and instructions to do so.
Check out the diagrams (Below). Please let us know what you find.
Images (Click to enlarge)
Tuesday, September 1st, 2015 AT 7:00 AM