The aux fan error or compressor error will show up in the dme error codes. Not sure if PA Soft will pick it up, when I had the issue I ran INPA to see the error. If you have the budget, the Foxwell is a great tool. I have 4 tools I use all the time and they each have functionality that the others do not.
- INPA
- PA Soft 1.4
- Foxwell NT-510
- ELM 327 Bluetooth module to OBD Fusion on my Android phone