Best Car Code Reader Reviews: 10 OBD2 Scanners Compared
Compare 10 manufacturer-listed OBD2 scanners for check-engine diagnosis, battery testing, emissions readiness, oil resets, enhanced system coverage, and smartphone connectivity.
OBD2 Scanners & Diagnostics
Learn what a diagnostic scanner can read, how to interpret vehicle data and where a code reader reaches its limits. Use the explainers and diagnostic guides before comparing tools for a specific vehicle.
Best Car Code Reader for DIY Check-Engine Diagnosis
Compare 10 car code readers from $15.97 to $349.99, including basic engine scanners, live-data tools, ABS/SRS readers, battery testers, and advanced bidirectional diagnostics.
Best Car Diagnostic Tools for DIY Car Owners
Compare nine OBD2 scanners for check-engine codes, live data, ABS, SRS, resets, and bidirectional controls. The MOTOPOWER MP69033 is the only fully verified recommendation from the supplied power-source data.
Best Car Diagnostic Tool AUTO Scanner for DIY Vehicle Checks
Compare 10 OBD2 scanners by diagnostic coverage, compatibility, reset functions, connection method, and listed price to find the right car diagnostic tool for DIY checks.
Best Car Diagnostic Tool: Match the Scanner to the Job
Compare 10 car diagnostic tools by price, vehicle coverage, live data, app requirements, system access, and service functions to find the right OBD2 scanner.
Best Car Diagnostic Software for DIY Repairs and Code Reading
Compare 10 car diagnostic software and scanner options, from basic OBD2 code readers to Bluetooth apps and advanced bidirectional scan tools.
Best Car Diagnostic Scanner for DIY Repairs and Code Reading
Compare 10 car diagnostic scanners for check-engine codes, live data, ABS, SRS, transmission diagnostics, resets, and bidirectional controls.
Best Car Diagnostic Reader for Check-Engine Lights, ABS, and DIY Repairs
Compare 10 car diagnostic readers for check-engine lights, ABS, SRS, live data, battery tests, Bluetooth scanning, and service resets.
Best BMW OBD2 Scanners for DIY Diagnostics and Service Resets
Compare seven supplied OBD2 scanners for BMW, MINI, and Rolls-Royce vehicles, including full-system tools, battery-registration scanners, Bluetooth readers, prices, limitations, and compatibility advice.
Best BMW Scan Tool: Match the Right Diagnostic Features to Your Car
Compare six BMW scan tools, including full-system diagnostic tablets, wired service-reset scanners, Bluetooth readers, and a basic universal OBD2 code reader.