Modern OBD-II scanners give everyday drivers and DIYers the power to read their car’s ‘check engine’ light and uncover hidden trouble codes. From basic code readers to advanced professional tools, ...

We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

An OBD2 scanner is like a translator between you and your car’s computer, giving you the codes and data you need to understand what’s wrong. From basic code readers to advanced diagnostic tools, these ...