Originally posted by tigger73
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According to VW's material and as can be seen, in the mk7, the multifunction steering wheel is included in the car's network, whereas the unit in the mk6 is simply directly connected to the steering wheel assembly.
So, while the multifunction steering wheel control unit J453 on the mk7 was previously a LIN slave to the steering column electronics control unit J527 (see E221 LIN wire), it is now connected directly to the diagnostic interface for data bus J533 as a LIN slave. As is shown in the picture above, the signals from the multifunction steering wheel are, as previously the case, transmitted via the coil connectors and the steering column electronics control unit, but for wiring reasons only. They do not have any effect on functions there (whereas they are part of the J527 functions on the mk6)
Don
PS: I wasn't aware that someone was offering a emulator box for the LIN differences! Sounds interesting- I wonder how it works?
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