Got a check engine light? Trying to run a diagnostics check but you're still wondering what those OBD 1 codes mean? Check out what engine codes your ECU may throw out and what they mean. Get all ...

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.

Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

Nearly all TTAC readers and writers have wrenched on a vehicle equipped with the OBD-II diagnostic system. Having a handheld code reader in yer box of tools can help douse that infernal check ...

If you're a personal user, knowing how to read and interpret OBD codes is a trick that's well worth having up your sleeve for those times when the Check Engine light in your car suddenly comes on ...

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.

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

An OBD II system can be so sensitive to changes in engine performance that the addition of some aftermarket equipment causes the system to operate outside of those very tight operating limits.

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?

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.

The primary purpose of the OBD-II connection is for emissions testing, but one of the first and most widespread applications available to consumers is the scan tool or code reader.