Where is the 2002 chevy tracker obd port located?

The OBD II port in Your 2002 Chevy Tracker is located under the driver side of the dashboard below the steering column. There is a small plastic cover that You will need to remove to access the plug. OBD II stands for On-board Diagnostics system Second generation. The second generation took the place of Gen 1 in 1996, Gen 1 was created in 1987. The main reason these two systems were created is to implement a universal communication protocol to read and exchange data created by the increasingly computerized vehicle systems and sensors. Before these were created owners and independent mechanics would need a unique scan tool for each make of vehicle they intended to work on. The system became legally required in 1996 if the vehicle was to be sold in the US.