OBD-II Diagnostic Connector Pin Assignment
1. Used by the vehicle manufacturer.
2. Bus + (Bus positive Line). SAE-J1850 PWM, SAE-1850 VPW.
3. Used by the vehicle manufacturer.
4. Body ground.
5. Signal ground.
6. CAN-High line of the CAN Highspeed bus (ISO 15765-4, SAE-J2284).
7. K-Line (ISO 9141-2 and ISO 14230).
8. Used by the vehicle manufacturer.
9. CAN-Low line of the CAN Lowspeed bus.
10. Bus - (Bus negative Line). SAE-J1850 PWM, SAE-1850 VPW.
11. Used by the vehicle manufacturer.
12. Used by the vehicle manufacturer.
13. Used by the vehicle manufacturer.
14. CAN-Low line of the high-speed CAN bus Highspeed (ISO 15765-4, SAE-J2284).
15. L-Line (ISO 9141-2 and ISO 14230).
16. Power supply +12V from the battery.
Important to know
• The diagnostic connector is usually located in the car's interior under the dashboard on the driver's side.
• In the OBD-II standard, manufacturers use many protocols for connecting to a car, for example: ISO 9141-2, ISO 14230, SAE J1850 VPW, SAE J1850 PWM, ISO 15765-4 CAN.
• We do not recommend diagnosing your car, lack of experience and confidence in your actions is fraught with consequences in which you can damage the on-board computer.
• For a more accurate search for the required code from the table, start a search on the page, press the keys (Ctrl + F).
• Considering the huge amount of data and the brevity of the decoding of the codes presented, the information in the table may contain inaccuracies.