Cars and bikes interfaces  > Subaru pinouts
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

 

 

Subaru OBD-2 compatibility list

Model Engine Year (starting from) OBD-2 Protocol
Subaru Forester Gasoline (168 HP) 1999  
2.0 turbo, Gasoline (177HP) 2000 ISO 9141
2.0 Atmo, Gasoline (125HP) 2001 ISO 9141
Subaru Impreza gx, Gasoline (125HP) 2000 ISO 9141
2.0 Turbo 16s, Gasoline (217HP) 2001 ISO 9141
2.0 turbo, Gasoline (225HP) 2001 ISO 9141
1.6, Gasoline (95HP) 2002 ISO 9141
2.0 Turbo, Gasoline (265HP) 2003 ISO 9141
Subaru Impreza GD/GG Gasoline (124 HP) 2000 ISO 9141-2 
Subaru Impreza GX Gasoline (124 HP) 2001 ISO 14230-4, ISO 9141-2
Subaru Impreza WRX   2002 ISO 14230-4, ISO 9141-2
Gasoline (222 HP) 2003 ISO 14230-4, ISO 9141-2
Gasoline (227 HP) 2006 ISO 14230-4, ISO 9141-2
Subaru Impreza WRX GD/GG Gasoline (215 HP) 2000  
Subaru Legacy 2.5 BE/BH, Gasoline (155 HP) 2000 ISO 9141-2 
2.5i, Gasoline (165HP) 2004 KWP FAST
2, Gasoline or LPG (138HP) 2005 KWP FAST
2.0, Gasoline (163 HP) 2007 CAN 
2.0 D, Diesel (150HP) 2009 CAN 11bit (500kb)
2.0 2001 ISO 14230-4, ISO 9141-2
Subaru OUTBACK Gasoline (155 HP) 2000  
2.5i, Gasoline or LPG (165HP) 2005 KWP FAST
2.5l gpl, Gasoline or LPG (165HP) 2006 KWP FAST
3, Gasoline (245HP) 2007 CAN 11bit (500kb)
Subaru Outback Wagon   2002 ISO 14230-4, ISO 9141-2

Obd protocols:

1996-2002 : ISO 9141

2003-2005 : ISO 9141 or KWP2000

after 2007 : CAN

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

USA and Canada 1996-1998(?1999) models Legacy/Outback:
OBD-2 style connector, but only SSM protocol allowed. Pin(s):
2;4 (ground)
12;13 (SSMECM communication)
14 (automatic transmission sense/comunication)
16 power

The Subaru Select Monitor uses TTL serial communications. All that is required to connect the car to your computer is a 5-volt TTL to RS232 converter, or a 5-volt TTL to USB converter. These devices are quite easy to make, or can be bought cheaply.

16 pin J1962 OBD-2 car proprietary of Subaru OBD II diagnostic connector connector layout
16 pin J1962 OBD-2 car proprietary connector
at the Subaru car
According to 4 reports in our database (2 positive and 1 negative) this pinout should be correct.

Is this pinout
Subaru OBD II diagnostic connector visual pinout:
Subaru OBD II diagnostic connector diagram
click to enlarge
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