Monday, 23 September 2013

Audi Multifunction steeering wheel

Schematics:









 

Fritzing file. 

Steering wheel with electronic for MFSW (4B0 419 091 BB)










control unit in steering wheel



connectors from left: power, button inputs, output





Control unit for MFSW (4B0 907 487 E)








Based on MCU pins used, comunication is CAN @ ~17000kHz 

looks like control unit is sending to steering  wheel 0xfe

VOLUME_UP:


RIGHT:


LEFT:



DOWN:


lights on PROBABLY:



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