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CAN Bus Information

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61K views 25 replies 15 participants last post by  Thaniel  
came across this thread while searching for where to hookup my AIM Pista datalogger.... Ill post back with pictures/writeup once I figure it out. My PDFs say:

ECUs of these BMW cars have twisted wires out coming.
To connect these cars to AIM loggers:
***8226; connect AIM cable labelled CAN+ to yellow/red (CAN High) of BMW ECU wiring;
***8226; connect AIM cable labelled CAN- to yellow/brown (CAN Low) cable of BMW ECU
wiring.
or
***8226; connect AIM cable labelled CAN+ to yellow/black (CAN High) of BMW ECU wiring;
***8226; connect AIM cable labelled CAN- to yellow/brown (CAN Low) cable of BMW ECU
wiring.

Edit: Looks like pin 9 is CAN+ and pin 10 is CAN- on the instrument cluster or PIns 36/37 off DME.
 

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Just hooked up the Pista using the CAN BUS. Pretty simple using the wiring from the instrument cluster. Went out for a drive to check the datalogging. It appears it reads all the basic stuff, but the brake pressure switch pressure isnt logging anything. I'll have to figure it out. Fuel is reading in liters and Ill have to make that change.

AIM CAN BUS info: http://www.aim-sportline.com/download/ecu/stock/bmw/BMW_Mini_100_eng.pdf
 

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