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Guide to Activate BMW auto detection with INPA Ediabas


Guide to Activate BMW auto detection with INPA Ediabas


Obd365.com here provides the instruction on how to enable BMW auto detection with INPA/Ediabas interface.

Tools: The Chinese INPA Ediabas interface (OBDII compatible, bought mine from Chinese seller obd365.com.)


How to:

I will auto-detect MY >2000-2001 via the OBD interface but not older models via the 20-pin/OBD adapter because the ignition signal is not detected by the 20-pin connector. The OBD side of the interface does have a connection to pin #1 (ignition, terminal 15) – see the small yellow “1” toward the top right of the PCB:


It is marked by the yellow arrow


But it is not passed through the OBD to 20-pin adapter. The adapter cable only has 4 conductors, only 3 of which are functional. So we have to do some soldering.


One connects OBD #16(battery, terminal 30) to 20-pin #14, the second connects OBD #4/5 (ground) to 20-pin #19, and the third connects OBD #7/8 (TDX1/TDX2) to 20-pin #17/20. (The 4th green conductor is soldered to 20-pin #15 but has no connection to the BMW INPA K+DCAN cable.)


I opened the shells of the 20-pin connector and the interface and soldered an external jumper (the red wire below) between pin#16 of the 20-pin connector and #1 of the INPA/Ediabas interface.


And voila, auto-detection in DIS:


Yellow “1” is on pin #16. Pin #1, where the jumper is to be soldered to, is on on top of picture on opposite side on the board.


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