BMW OBD-II diagnostic interface pinout

16 pin J1962 OBD-2 car proprietary connector
at the BMW car

used in all BMW models produced after 2000's

 

Pin	Signal	Description
1	+12V	 Ignition(in run or start)
4	CGND	Chassis ground
5	SGND	Signal ground
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7	ISO 9141-2 K-LINE	engine (ISO-9141 and ISO-14230), automatic transmission diagnostic (in some models)
8	ISO 9141-2 K-LINE	 IKE/KOMBI, ABS, ABS/ASR, ABS/ABD, ESP, DSC, Airbag and other electronic equipment
9	TD/RPM	Engine rotation speed
16	+12v	Battery power

 

 

 

ISO 9141-2 used in BMW 3-Serie, 5-Serie, X5, Z3, Z4, Z8, 740i, 740iL, 750iL.

KWP2000 used in BMW 5-Serie; Generation (E60), BMW 745i, 745Li, 765Li.

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