OBD2 Scanner Diagnostic Tool Code Reader for All OBDII Cars | Read & Clear Engine Codes

Product Specifications

• Automotive fit type: Universal fit

What It Is / How It Works

OBD2 code readers are handheld diagnostic tools that plug into a vehicle's OBD2 port, the standard diagnostic connector on most passenger cars sold in the United States in recent decades. Code readers in this category are built to read engine trouble codes and show them on a screen, so the driver can see what the vehicle's computer has logged.

Who It's For / Use Cases

Code readers like this suit car owners who want to check why a warning light is on before visiting a repair shop. Drivers who keep a basic diagnostic tool in the glovebox use this type of product for quick checks at the roadside or at home. Shop staff and hobbyist mechanics use code readers to get a first look at engine data before deciding on the next repair step.

How to Use / Care

1. Use it to read engine codes from the vehicle's OBD2 port.

How to Choose

Choose a code reader by the functions you need. If you mainly want to look up engine trouble codes, a basic reader covers that job. If you also want live data, battery checks or emissions readiness status, look for a model whose listed functions include those checks.

Frequently Asked Questions

Which vehicles does it fit?
It is listed with a universal fit type and is made for OBDII cars in general, so check the listed coverage against your vehicle before ordering.

What does a code reader like this do?
Code readers in this category read engine trouble codes and show them on a screen. Many also display live data and run readiness checks, which helps explain why a warning light is on.

What is I/M readiness?
I/M readiness is a status that shows whether the vehicle's emissions-related monitors have finished their self-checks. Code readers often display this status so the owner can see whether a test is likely to pass.