Mazda OBD II diagnostic interface pinout

sed in Mazda’s produced after 1996

 

 

Pin Signal Description
2 J1850 Bus+
3 LS CAN Hi Low speed (125Kb) CAN bus. This bus used for some IC, RFA and other units.
4 CGND Chassis ground
5 SGND Signal ground
6 CAN High J-2284
7 K-LINE Diagnostic, (ISO 9141-2 and ISO/DIS 14230-4)
10 J1850 Bus-
11 LS CAN Low Low speed (125Kb) CAN bus. This bus used for some IC, RFA and other units.
14 CAN Low J-2284
15 ISO 9141-2 L-LINE Diagnostic, (ISO 9141-2 and ISO/DIS 14230-4)
16 +12v Battery power

 

 
 

Mazda OBD-2 compatibility list

Note that list is not 100% complete!

Model Engine Year (starting from) OBD-2 Protocol
Mazda 121 1,25 liter, Gasoline (100 HP) 1995 PWM J1850
Mazda 2 Gasoline (74 HP) 2008 CAN
Mazda 323 Gasoline (97 HP) 2001 ISO 9141-2
2, Gasoline (130HP) 2001 ISO 9141
Gasoline (92 HP) 2003 -
Gasoline (97 HP) 2001
Mazda 6 Diesel (120 HP) 2003
Diesel (135 HP) 2005 CAN
Gasoline (127 HP) 2005
Gasoline (135 HP) 2005 CAN
Diesel (135 HP) 2005 CAN
Diesel (135 HP) 2005 CAN
Gasoline (164 HP) 2003
2.0 MZR CD, Diesel (136HP) 2003 CAN 11bit (500kb)
2.0 MZR CD, Diesel (120HP) 2006 CAN 11bit (500kb)
2, Diesel (143HP) 2006 CAN 11bit (500kb)
Diesel MZR 2.0, Diesel (128 HP) 2007
Mazda 626 2.0 16V, Gasoline (114 HP) 2001 ISO 14230-4, ISO 9141-2
Mazda B2300 2002 PWM J1850
Mazda B2500SE Pickup 2001 PWM J1850
Mazda B3000 2002 PWM J1850
Mazda BT50 2.5 MRZ-CD, Diesel (143HP) 2007 CAN 11bit (500kb)
Mazda 2 1.4, Diesel (68HP) 2007 CAN 11bit (500kb)
1.3 MZR, Gasoline (86HP) 2009 CAN 11bit (500kb)
Mazda 3 1.6 MZCD, Diesel (110HP) 2004 CAN 11bit (500kb)
Gasoline (74 HP) 2005 CAN
Mazda 5 2.0 MZ-CD, Diesel (110HP) 2006 CAN 11bit (500kb)
CRD, Diesel (145HP) 2007 CAN 11bit (500kb)
1.8L, Gasoline (114 HP) 2006 CAN
1.6 MZR-CD, Diesel (110HP) 2011 CAN 11bit (500kb)
Mazda MX-5 Gasoline (109 HP) 2001 ISO 14230-4
1.8L, Gasoline (126HP) 2006 CAN 11bit (500kb)
Mazda MX-5 (Australian) 2003 ISO 14230-4, ISO 9141-2
Mazda MX-5 (Miata) 2003 ISO 14230-4, ISO 9141-2
Mazda MX5 NB Gasoline (139 HP) 2000
Gasoline (113 HP) 2003 ISO 9141-2
Mazda MX-5 NC Gasoline (128 HP) 2007 CAN
Mazda MX-5 NC1 Gasoline (159 HP) 2006 CAN
Mazda MX5NB FL Gasoline (114 HP) 2004 ISO 14230-4, ISO 9141-2
Mazda Protege 2001 ISO 14230-4, ISO 9141-2
Gasoline (108 HP) 2000
Mazda Protege 5 2002 ISO 14230-4, ISO 9141-2
Mazda RX8 1308 cm3, Gasoline (192HP) 2003 CAN 11bit (500kb)
2.6, Gasoline (231HP) 2004 CAN 11bit (500kb)
Gasoline (228 HP) 2003 CAN
Gasoline (190 HP) 2005
Mazda Tribute 2002 PWM J1850

Protocols used:

1996-2002 : ISO-9141

2002-2005 : ISO-9141 or CAN

after 2005 : CAN

Mazda (Ford) used J1850-PWM mostly.

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