What is EOBD

What is EOBD?

EOBD is an abbreviation of European On-Board Diagnostics.

Since 1 Jan 2001 All petrol cars sold within Europe, and diesel cars manufactured from 2003, must have on-board diagnostic systems to monitor engine emissions.

These systems were introduced in line with European Directive 98/69/EC to monitor and reduce emissions from cars.

All such cars must also have a standard EOBD diagnostic socket that provides access to this system.

Standard pin out description is as follow:

2	J1850 Bus+
4	Chassis Ground
5	Signal Ground
6	CAN High (J-2284)
7	ISO 9141-2 K Line and ISO/DIS 14230-4
10	J1850 Bus
14	CAN Low (J-2284)
15	ISO 9141-2 L Line and ISO/DIS 14230-4
16	Battery power