OBD-II Type Casting An OBD-II trouble code comes in two varieties. Type 1 codes trigger the check engine light immediately after a failure is detected.

Whether you are a full time mechanic, or just a hobbyist, keeping track of all the different OBD-II codes for various vehicles is a nearly impossible task, and while not everyone wants to keep their ...

Plus, it has a more straightforward and standard user operation, meaning it now uses the same OBD-II port, connector, and diagnostic trouble codes for all car makes.

Typically, inexperienced counter personnel use a scanner, or code reader, to pull an OBD-II trouble code from a customer’s car; off-handed repair advice is then communicated in an effort to ...

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.

Get the read on your car issues with an OBD-II code reader. I tried out some of the top brands on the market to find the best one for your needs.

OBDII ports are standard on all cars from the 1996 model year on in the U.S. This allows anyone with a reader to plug in and read any trouble codes the car may be throwing.

Tested: Best OBD-II Scanners for 2025 Did your vehicle's check-engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle.

OBD-II is the standard diagnostics port in cars, and it's been that way for years. When did it replace OBD-I in motorcycles? Which one does your bike have?