What Is the OBD-II Port and What Is It Used For?

If you purchased a car built after 1996, it probably has an OBD-II port. But what is it for, and how do you diagnose errors with it?

OBD2 Explained - A Simple Intro [2023] – CSS Electronics

This optional cable can be used to connect your AiM EVO4 data logger to an ECU via the OBD-II port for a plug-and-play installation! It has a 5-pin

AiM EVO4 Cable, 5-Pin 712 to OBD-II (CAN only) Connector

Diesel Laptops Mack & Volvo 2013 & Newer OBDII Cable for DPA5

OBD2 Connector Pinout, Details & Datasheet

On-board diagnostics - Wikipedia

OBD2 Y-Cable OBD Extension for TrackPort GPS Tracker

OBD2 Explained - A Simple Intro [2023] – CSS Electronics

Extension cables can be used to relocate the Car Connector if it obstructs normal driving operation or if the OBD-II port is loose.

Alarm.com Car Connector OBD-II Extension (Left) ADC-OBDII-EXT-L

OBD2 Male to 9pin J1939 Female adapter cable. OBD2 Male to type 2 green 9Pin Female Port. Can be used for converting connection from truck round 9 pin

16 Pin OBD II 2 Male Port to Female 9 Pin Truck Diagnostic Scanner Cable Adapter

Learning about your OBD II port

User Manual Tractor Hacking

Where Is The OBD Port Located In My Car? (With Illustrations)

Blog - What is OBDII? The High-Tech Port In Every Car Since 1996