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 ...

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.

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?

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.