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We are closed for staff holiday until the 5th November. You can still place orders but it won't get process until after that date.
We are closed for staff holiday until the 5th November. You can still place orders but it won't get process until after that date.

OBDII connector pinout and OBDII to DB9 wiring

 The OBDII socket is a 16way connector usually found just below the car's dashboard near the steering wheel.

 OBDII connector pinout. OBDII to DB9 wiring.

 OBDII socket viewed from the front

Pinout

Pin no Function
4 Chassis ground
5 Signal ground
6 CAN High
7 K-Line
14 CAN Low
15 L-Line
16 +12v

 

OBDII to DB9 Cable 

There seems to be two wiring configurations for the CAN-bus connection on the OBDII to DB9 cable.

OBDII to DB9 cable

Type 1.

As used in CAN-BUS analyser like Peak-Systems, Kvaser and Totalphase.


 

Type 2.