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16 pin J1962 OBD-2 car diagnostic connector layout
16 pin J1962 OBD-2 car diagnostic connector
at the GM car
obd-II pinout for Buick, Chevrolet, Cadillac, Pontiac, GMC, Holden
The pinout should fit 47 devices/models. Click to list>

Pinout may be slightly different - depending on model.

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    Low Speed GMLAN Serial Data. 
  • Amplifier (Amp)  
  • Rear seat audio (RSA)  
  • Vehicle communication interface module (VCIM)  
  • Digital radio receiver (DRR)  
  • Inside rearview mirror module (ISRVM), connected through the mid I/P fuse block  
  • Instrument panel cluster (IPC)  
  • Body control module (BCM)  
  • Theft deterrent module (TDM)  
  • Heater ventilation and air conditioning (HVAC)  
  • Radio  
  • Driver door switch (DDS), connected through the left I/P fuse block  
  • Passenger door switch (PDS), connected through the right I/P fuse block  
  • Articulating running board module (ARBM) 
  • Ultrasonic park assist (UPA)  
  • Memory seat module (MSM)  
  • Liftgate module (LGM)  
  • Passenger presence system (PPS)  
  • Inflatable restraint vehicle rollover sensor (ROS)  
  • Inflatable restraint sensing and diagnostic module (SDM)  
2 J1708 SAE J1708 Serial Data (Trucks only)
3 PTLAN (+) high speed hybrid GMLAN serial data bus (+) terminal  (with Hybrid propulsion electric)
4 GND  Chassis ground
5 SGND  Signal Ground
6 HS-CAN (+) High Speed GMLAN Serial Data Bus +. Communication between the body control module (BCM), ECM, transmission control module (TCM), vehicle communication interface module (VCIM), 4WD control module, EBCM, and the suspension control module depending on RPO
7 KW200 Keyword 2000 Serial Data (on some models) / SAE J1708 Serial Data A (Trucks only) 
8   Central Control Module Diagnosis Enable (some Holden models)
11 PTLAN (-) high speed hybrid GMLAN serial data bus (+) terminal  (with Hybrid propulsion electric)
14  HS-CAN(-)  E&C (High Speed GMLAN Serial Data Bus -)
15 J1708 B SAE J1708 Serial Data B (Trucks only)
16  Battery+ Battery Positive Voltage

 

Pre-2000 OBD-2 connector have following pinout (may be varied)

Pin

Wire Color

Function

2

PPL

Serial Data Signal-Class B

4

BLK

Ground

5

BLK/WHT

VCM Ground

8

BLK/WHT

Keyless Entry Program Enable Signal

9

TAN

SIR Serial Data

12

TAN/WHT

Diagnostic Signal (ABS)/(15,000 GVW Only)

13

ORN

Diagnostic Signal-Transfer Case Control Module

14

GRN DK

Diagnostic Signal-Entertainment and Comfort

16

ORN

Battery

 

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:

 

Pinout status: +2 -0
According to 2 reports in our database (2 positive and 0 negative) the General Motors (GM) OBD II diagnostic interface pinout should be correct.

Is this pinout
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General Motors (GM) OBD II diagnostic interface visual pinout:click to enlarge
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