Pin 1 of OBD is connected to DSR (pin 6 of a sub RS232) over a 1k resistance (for shorts protection)Ĥ. uses DTR instead of RTS (pin4 on sub D RS232)ģ. pin 7 and 8 of the OBD interface connectedĢ. Here the mods it has over the std interface above:ġ. Here the mods a std OBDII serial KL interface needs to have to be BMW diagnosis compatible (works also with BMW scanner demo, would assume Carsoft would also work but have’n tried it as Carsoft doesn’t bring anything when you have INPA/NCS and GT1), as modified schematic and in words: Please observe the 1-4 OBD reference is for the internal connection card to the OBD socket, the schema below lists the corresponding OBD pins. Here how a true KL interface looks (work for std OBDII serial diagnosis software (not ELM type software)): You can most likely do the modifications yourselves to the interface (if you know anything about electronics and have a Volt/Ohm meter to check for Voltages and contact over the pins)ġ00% compatible with INPA and DIS (actually with EDIABAS STD:OBD)
It could be your interface which seems not fully following the special modifications that an OBD serial INPA/GT1 interface should have on top of a standard serial OBDII interface. This is a 100% compatible interface and the explanation + schematics over the BMW mods. Only short the Pin 7&8 from my vcds cable, and use it for bmw? It is possible to use an “old” vcds or vagcom kkl cabel and use it for newer bmw (2004-2011) with the software inpa? Here, you will get answers to questions below:
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