Really thanks. Your information rocks. I am really interested in the carsoft hardware schematics and any other information you may have about this.

So as i posted in another thread some more information when the BMW car has no OBD2 fuse but supports it.

If I was you:

1. I whould try before bying the cable to do the following diy stuff. It's plain easy and you need at most 50 cm cable and a cutting tool.

2. I couldn't sleep before getting that thing to work

(don't hang on me , is just what i whould do)

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BMW Diagnosis Socket Pinout for ODB2

14 Battery power
15 ISO 9141-2 L Line
17 ISO 9141-2 K Line
19 GND
20 ISO 9141-2 K Line



OBD2 Diagnosis Socket Pinout




OBDII ------------------ BMW

4,5 ------------------ 19(Ground)
7 ------------------ 17,20(K Line)
15 ------------------ 15(L Line)
16 ------------------ 14(Power)

Yet i don't have latter 96 BMW (and before CAN BUS) to test if this working. If so please write it down here.


So things are getting straight now.

1. hances are models latter 96 to support OBD2 either through the 20 pin diagnostic socket (see above) [if there is no J1962] either through preinstalled OBD2 (J1692) socket.

2. OBD2 Protocols. If the car is 96 latter but 2002 pre, is uses the ISO 9141-2 [ELM, RS232], if later than 2002 uses ISO 15765 CAN