AiM systems acquire data from the ECU of your vehicle. 
The list of available ECU drivers is constantly updated and upgraded and includes  > 1,000 different ECUs, either Stock and Racing. 
They are sorted by manufacturer/vehicle model: for each ECU  you find the proprietary communication protocols, including the standard OBDII ones. 
From a hardware point of view, AiM systems manage  the following data lines: |