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obd 2 pinout for GM cars
Should be suitable for most modern GM cars - Buick, Cadillac, Chevrolet, Daewoo
GMC, Holden, Opel, Vauxhall.
GMC, Holden, Opel, Vauxhall.
Most GM cars produced in 1996-2003 use J1850-VPW interface. GM cars produced in 2003-2006 use J1850-VPW interface or CAN. Most cars produced after 2006 are equipped with CAN bus.
Pin Number | Pin Name | Description |
1 | Second UART | |
2 | J1850 | J1850(+) VPW |
3 | Comfort | |
4 | GND | Chassis ground |
5 | SGND | Signal Ground |
6 | HS-CAN | PCM |
7 | K-Line | n/c |
8 | CCM | |
9 | first UART | |
10 | PWM | n/c |
11 | EVA controller | |
12 | ABS | |
13 | SIR | |
14 | HS-CAN(-) | E&C |
15 | L-Line | n/c |
16 | Battery+ | Battery +, unswitched |
Since 2002, there is another pinout - GM-LAN (for vehicles equipped with CAN bus)
Pin Number | Pin Name | Description |
1 | SW-LS-CAN (33kB) or DW-FT-CAN (+) (<125kB) | |
2 | J1850 | n/a |
3 | MS-CAN (+) (95kB) | |
4 | GND | Chassis ground |
5 | SGND | Signal Ground |
6 | HS-CAN | ISO 15765 HS-CAN (+) (500kB) |
7 | K-Line | n/a |
8 | n/a | |
9 | DW-FT-CAN (-) (<125kB) | |
10 | PWM | n/c |
11 | MS-CAN (-) (95kB) | |
12 | K-Line (KW82 Prot.) | |
13 | reserved | |
14 | HS-CAN(-) | ISO 15765 HS-CAN (-) (500kB) |
15 | L-Line | n/a |
16 | Battery+ | Battery +, unswitched |
OBD-2 compatibility list
Note that list is not 100% complete!
Model | Engine | Year (starting from) | OBD-2 Protocol |
---|---|---|---|
Buick Century | 2002 | VPW J1850 | |
Buick Rivera | 1998 | VPW J1850 | |
Buick Skylark | 1996 | VPW J1850 | |
Cadillac Deville | 2000 | VPW J1850 | |
Cadillac Eldorado | 1998 | VPW J1850 | |
GMC Jimmy | 1999 | VPW J1850 | |
GMC K2500 | 1997 | VPW J1850 | |
GMC Lumina | 2001 | VPW J1850 | |
GMC Yukon | 1998 | VPW J1850 | |
Chevrolet Astra | 2.0 Flex Power, Gasoline (127 HP) | 2004 | ISO 14230-4, ISO 9141-2 |
Chevrolet Aveo | 1.4, Gasoline (60HP) | 2005 | KWP FAST |
1.6, Gasoline (103HP) | 2005 | KWP FAST | |
1.6, Gasoline (103HP) | 2007 | KWP FAST | |
1.2, Gasoline (70HP) | 2008 | KWP FAST | |
1.5, Gasoline (?HP) | 2008 | KWP FAST | |
Gasoline (84 HP) | 2009 | ISO 14230-4 | |
1.2, Gasoline or LPG (82HP) | 2009 | KWP FAST | |
Chevrolet Blazer | 1995 | VPW J1850 | |
Chevrolet Blazer LT | Gasoline (191 HP) | 1997 | VPW J1850 |
Chevrolet Camaro | 1997 | VPW J1850 | |
1997 | ISO 14230-4, ISO 9141-2 | ||
1998 | VPW J1850 | ||
3.8 V6, Gasoline (193HP) | 1998 | VPN | |
1999 | VPW J1850 | ||
5.7 LS1, Gasoline (288HP) | 1999 | VPN | |
2000 | VPW J1850 | ||
L36, Gasoline (191 HP) | 2002 | VPW J1850 | |
6.2 V8, Gasoline (405HP) | 2012 | CAN 11bit (500kb) | |
Chevrolet Caprice | 1996 | VPW J1850 | |
Chevrolet Captiva | 2.0 VCDI, Diesel (150HP) | 2006 | CAN 11bit (500kb) |
2.2 VCDI, Diesel (163HP) | 2011 | CAN 11bit (500kb) | |
Chevrolet Cavalier | 1996 | VPW J1850 | |
1998 | VPW J1850 | ||
1999 | VPW J1850 | ||
Chevrolet Cobalt | Gasoline (145 HP) | 2006 | CAN |
Chevrolet Corvette | 2000 | VPW J1850 | |
V8, Gasoline (400HP) | 2007 | CAN 11bit (500kb) | |
Chevrolet Corvette C5 | 5.7 V8, Gasoline (350HP) | 2003 | VPN |
Chevrolet Corvette C6 | 6, Gasoline (404HP) | 2005 | ISO 9141 |
LS7, Gasoline (512HP) | 2007 | CAN 11bit (500kb) | |
6.2, Gasoline (436HP) | 2008 | CAN 11bit (500kb) | |
Chevrolet Cruze | 2.0 VCDi, Diesel (150HP) | 2010 | CAN 11bit (500kb) |
2.0 VCDI, Diesel (163HP) | 2011 | CAN 11bit (500kb) | |
Chevrolet Epica | 2.5, Gasoline (155HP) | 2004 | KWP FAST |
2.0 vdCi, Diesel (150HP) | 2007 | CAN 11bit (500kb) | |
Chevrolet Evanda | Gasoline (176 HP) | 2005 | |
Chevrolet Express van | V8 5.3L, Gasoline (300HP) | 2003 | VPN |
Chevrolet HHR | Gasoline (168 HP) | 2008 | |
Chevrolet Impala | 2000 | VPW J1850 | |
2002 | VPW J1850 | ||
Chevrolet Kalos | 1.4 SE, Gasoline (93 HP) | 2005 | ISO 14230-4, ISO 9141-2 |
1.4 16V, Gasoline (93 HP) | 2006 | ISO 14230-4 | |
Chevrolet Lumina | 1996 | VPW J1850 | |
Chevrolet Malibu | 1997 | ||
Chevrolet Malibu | 3.1 V6, Gasoline (150HP) | 2000 | VPN |
Chevrolet Matiz | 1.0 SE LPG.i, Gasoline (64HP) | 2006 | KWP FAST |
Gasoline (66 HP) | 2007 | ISO 14230-4, ISO 9141-2 | |
0.8, Gasoline (65HP) | 2009 | KWP FAST | |
Chevrolet Nuriba | 1.8 BVA, Gasoline or LPG (122HP) | 2006 | KWP FAST |
Chevrolet Optra | 1.6, Gasoline (109HP) | 2005 | KWP FAST |
Chevrolet Orlando | 1.8, Gasoline (146HP) | 2012 | CAN 11bit (500kb) |
2.0 HDi, Diesel (163HP) | 2012 | CAN 11bit (500kb) | |
Chevrolet Rezzo | 1.6 16v, Gasoline or LPG (107HP) | 2005 | ISO 9141 |
Chevrolet S10 | 2000 | VPW J1850 | |
Chevrolet Silverado | 2002 | VPW J1850 | |
6.5, Diesel (194HP) | 1996 | VPN | |
Chevrolet Spark | Gasoline (81 HP) | 2008 | |
1, Gasoline (68HP) | 2011 | KWP FAST | |
Chevrolet Tahoe | 1996 | VPW J1850 | |
5.7, Gasoline (265HP) | 1998 | VPN | |
5.3, Gasoline (275HP) | 2001 | VPN | |
5.3 V8, Gasoline (290HP) | 2005 | VPN | |
Chevrolet Trailblazer | Gasoline (270 HP) | 2002 | PWM J1850 |
Gasoline (270 HP) | 2002 | ||
Chevrolet Trans Sport | Gasoline (184 HP) | 2000 | |
Gasoline (186 HP) | 2003 | ||
Chevrolet Transsport | Gasoline (184 HP) | 1997 | VPW J1850 |
Chevrolet Uplander | 3.9, Gasoline (200HP) | 2007 | CAN 11bit (500kb) |
3.9, Gasoline (250HP) | 2007 | CAN 11bit (500kb) | |
Chevrolet Venture | 1998 | VPW J1850 | |
3.4, Gasoline (160HP) | 2002 | VPN |
Some OBD-II cables schemes: