Some Terminator X installers have a problem where the IAC control doesn't work at all. You don't need a USB to CAN harness either. Here is how to fix it:
1) Save your global file to the SD card on the handheld SD card
2) Download and install Terminator X software on computer.
3) Insert SD card in computer
4) Start Terminator X software and open file on SD card
5) Follow the instructions on this video
6) Save file to SD card
7) Insert SD card in Terminator X handheld
8) Load global file into Terminator X PCM.
9) Enjoy an IAC that works!
