![]() ![]() The presence of the OBDII socket seems to be rather random - some people have them on pre-facelift cars, others have facelift cars without. ![]() Cars built before September 1998 are a different kettle of fish, and the USB interface I have is next to useless with them - you need a serial port version. ![]() I do know that if you connect it to the OBDII socket under the steering wheel (on cars that have it), the ONLY module you can access is the engine - in the same cars if you connect to the round 20-pin connector under the bonnet, you can access all the modules (airbag, instruments, ABS, etc.). I am not sure that there is anything too special about the USB OBDII interface I have, but it was sold with INPA on a disc, so there is the possibility that there are interfaces that do not work with it. Using an OBDII-to-BMW round 20-pin adapter cable you seem to be able to access all the modules. =5&t=29419įrom my experience with INPA, it looks very much like cars built after September 1998 (that's six months before the facelift) have OBDII support, even if they don't have the connector. There is a rather long-winded thread on the subject here.
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