According to Wikipedia.org, On-Board Diagnostics, or OBD, is a generic term referring to a vehicle’s self-diagnostic and reporting capability. It gives the vehicle owner or a repair technician access to state of health information for various vehicle sub-systems. The has 16 pin locations which are numbered as shown below.

Pinout Diagram

OBD Connector Pinout Schematic Diagram

Pinout Assignment

1 ____ 5 (signal ground)
2 ____ 4 (chassis ground)
3 ____ 6 (CAN high J-2284)
4 ____ 7 (ISO 9141-2 K Line)
5 ____ 14 (CAN low J-2284)
6 ____ 10 (J1850 Bus-)
7 ____ 2 (J1850 Bus+)
8 ____ 15 (ISO 9141-2 L Line)
9 ____ 16 (Battery Power)



Related Post

Mazda Miata Wiring Diagram and Electrical Schematics (99)
2003 Toyota RAV4 Electrical Wiring Diagram, Routing and Connector List
1996 Nissan Quest Wiring Diagram Electrical System Troubleshooting
Honda Civic Cruise Control System Wiring and Circuit
ATV Polaris Sportsman Xplorer 500 Electronic Throttle Control Switch Testing