Hardware connector pinouts cables schematic wiring

Subaru OBD II diagnostic connector pinout

connector or cable wiring scheme

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obd 2 used in most american models produced after 1996 and european produced after 2001

Pin Signal Description
4 CGND Chassis ground
5 SGND Signal ground
6 CAN High J-2284
7 K-LINE (ISO 9141-2 and ISO/DIS 14230-4)
9    SSM (Subaru Select Monitor) timing pulse
11   SSM (Subaru Select Monitor) timing pulse
12   SSM to ECM signal
13   ECM to SSM signal
14 CAN Low J-2284
15 ISO 9141-2 L-LINE (ISO 9141-2 and ISO/DIS 14230-4)
16 +12v Battery power

 

 

Obd protocols:

1996-2002 : ISO 9141

2003-2005 : ISO 9141 or KWP2000

after 2006 : CAN

There are no support for any OBD protocols in some european models produced before 2001.


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
OBD-2 universal ISO 15765-4 CAN, SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 and SAE J1939 diagnostic cable

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