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About BMW-20 Diagnostic Socket (OBD-1) + Wiring Diagram
Posted by Alex E. on 24 October 2015 04:43 PM

 

1. Black - DME (TD)
4. Violet / black - +12V (R)
7. White / green - Service reset
12. Blue - Generator
14. Red - +12V (30)
15. White / Yellow - L-line (RxD)
16. Green / white - +12V (15)
17. White / violet - K-line (TxD2)
19. Brown - GND
20. White / violet - K-line (TxD)

 

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