2007 Gen2 A/C won't take refrigerant - no techstream codes - 21/76 on console

I didn't know they were up to TIS 18 already. That may be a pirated copy or something I don't know You should be able to look in at your air conditioner with TIS installed and see the compressor RPM and all of that kind of thing I mean it's not going to tell you anything that lots of other things can't tell you especially about your air conditioning system I mean anyway generally it's like a regular compressor instead of being driven by a belt and a clutch It's got an inverter motor inside of it once you pull a vacuum on that system you should have enough vacuum in the system to suck in enough gas to start the compressor easily easily so I'm not sure what you have going on the serious leak that's letting the vacuum go but if you service air conditioners before I'm sure that's not happening so I'm not sure exactly what you have going on these inverter compressors are actually a lot easier to work on than the business with the belt and the clutch and all the other nonsense here all you need is a power supply and the compressor works If you have an HV battery that's working and what have you then you should have compressor operation happening whether it's pumping and making cold that's another story that has nothing to do with TIS or anything else just with the motor inside the compressor.