BMW OBD II vehicle diagnostic connector pinout

connector or cable wiring scheme

20 pin car OBD2 custom connector
at the car side

Pin	Signal	Description
1	Engine rotation speed	TD
2	OBD-II diagnostic
7	Oil service and Inspection reset
11	External starter turn on
14	Battery power
15	ISO 9141-2 L Line	RXD- Diagnostic Data link
16	Ignition +12V
17	ISO 9141-2 K Line	n/c?
18	PGSP	Programming line
19	GND
20	ISO 9141-2 K Line	TXD - Diagnostic data link

Some OBD-II cables schemes:

OBD-2 ISO 9141-2 (14230-4, KWP2000) simple serial cable
OBD-2 J1850 PWM, J1850 VPW serial ELM327 cable

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Pinoutsguide.com > Cars and bikes interfaces > Pinout of OBD II BMW vehicle diagnostic connector and layout of 20 pin car OBD2 special connector	Is it correct?:	should be correct
Source(s) of this and additional information: tele-way.com Contributor: CIPSAN	5 reports
Last updated 2009-10-27 23:02:45. Edit this page.	Is this document correct or incorrect? What is your opinion?

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