I have a 16 pin to usb cable. I have managed to get INPA working and can speak to the engine and auto box plus view real-time stats but can't seem to connect to any of the other modules in the car. My car is a 99 328ci. Do I need to purchase a 16 to 20 pin adapter and connect via the 20 pin?
I also can connect to the car with DIS SSS but both fail to read the actual data from the car.