How to Identify MD1CS004 Version 1, 2 or 3 in Flex?

Question:

Trying to read Bosch MD1CS004 ECU with Flex Magicmotorsport.
It provides three versions of wiring pinouts. How do I know exactly which version I have? Which one to choose from?

Flex Md1cs004 Pinout 1

Here is the clue.

+12V power and GND are the same for all versions, only CanH/CanL change.
Power and gnd same pinout in all connection diagrams and no kill ecu.
Start with the first one, simple.

NOTE:

Some versions cannot do on bench mode, i,e H80, H22 only OBD.

Only some versions via OBD autotuner.

Autotuner Md1cs004

 

OBDII365