A decent, basic scan tool costs under $100, and most will work with all OBD-II vehicles. These devices plug into the vehicle’s onboard diagnostics port, a 16-pin socket that looks like an old-fashioned TV SCART connector. A dedicated hand-held scanner plugs in via cable, and may have its own screen, buttons and software chip. This type of car scanner price is usually more expensive than the cheaper display-only models, and some offer advanced component and module testing. This is a useful feature for the DIYer who’s comfortable disassembling parts and putting them back together. These types of scan tools also include technical advice, common repairs and Technical Service Bulletins (TSBs).

Budget-Friendly Solutions: Navigating the World of Affordable Car Scanners

Gear Team testers found the Foxwell NT201 to be a good choice for DIYers. It reads and clears codes, has a nice color-coded display and large control buttons, and includes a battery tester that can help you get a jump when your car dies. However, it’s not compatible with all makes and models, has a short cable and doesn’t include hybrid battery testing.

There are also Bluetooth scanners that work with a mobile device app to provide some of the same functionality, without the extra cost and clutter of a standalone handheld. These can be very affordable, and apps are easy to use. In fact, the top-rated car code reader diagnostic app, Carly, has users who report saving an average of $500 a year in maintenance and repair costs.