Access generic and manufacturer-specific Diagnostic Trouble Codes (DTCs) with instant definitions. Our included software provides on-screen code explanations directly from an integrated database.
For the car DIYer and beginner, the Autel MS300 scanner is a plug-and-play tool that pays for itself the first time you use it. Powered directly through your vehicle’s OBD2 port, this compact device requires no batteries and delivers clear diagnostic trouble codes in seconds—so you can quickly pinpoint emission-related issues. Keep this little powerhouse in your toolbox, and you’ll always be ready to scan on the go.
Start every repair with confidence. The MS300 reads and clears codes in seconds, helping you quickly understand what’s wrong, decide whether it’s a fix you can handle, and know when it’s time to call a mechanic. Never get stuck overpaying for repairs you could have done yourself.
Tired of that mysterious check engine light? Don’t panic—and don’t pay hundreds for a simple fix. With the Autel MS300, you can read the code, see what’s really going on, and turn off the light yourself.
Prepping for your annual smog check? Make it easy. The MS300 checks your vehicle’s OBD II Readiness Monitors—including misfire, fuel system, catalyst, O2 sensors, and EVAP—so you can ensure your car is ready to pass and avoid costly retests.
Compatible with 99% of OBDII-compliant cars and light trucks sold in the US since 1996, the EU since 2006, and Asia since 2009, the Autel MS300 supports all major protocols. Your purchase is backed by a 12-month warranty and free lifetime technical support—we’re always here to help.
Autel MaxiScan MS300
Universal OBD2 Scanner
A compact and powerful diagnostic tool for your vehicle. The Autel MaxiScan MS300 reads and erases trouble codes, turns off the check engine light, and retrieves your vehicle’s VIN and I/M readiness status. It is universally compatible with all OBD2 domestic, Asian, and European vehicles from 1996 and newer.
Powered directly by your vehicle’s 12-volt system through the 16-pin data link connector; no batteries are required. Simply plug in the scanner and turn the ignition on to begin your diagnostic session.