The Autel MS309 is a compact, user-friendly OBD2 scanner designed to diagnose and clear engine fault codes, turn off check engine lights, and retrieve vehicle info. With wide vehicle compatibility and built-in DTC definitions, it’s a must-have tool for every car owner or DIY mechanic.
Key Features of the Autel MaxiScan MS309
✅ On-Screen DTC Definitions
Instant display of Diagnostic Trouble Code (DTC) meanings
Built-in database of 3,000+ codes for fast troubleshooting
No need to search online for code meanings
✅ Read & Clear Fault Codes
Quickly scans and clears OBD2 codes
Pinpoints issues affecting your check engine light
Helps prevent unnecessary repair costs
✅ Freeze Frame Data & Vehicle Info
View critical engine parameters like RPM, fuel pressure, and coolant temperature
Retrieve VIN, Calibration ID, and CVNs for used car verification
✅ Emission Monitor Readiness
Check I/M Readiness for smog inspection
Monitors include: catalyst, O2 sensors, EVAP, fuel system, and more
✅ Reset Check Engine Light
Diagnose and reset CEL caused by minor issues like loose gas caps or misfires
Saves hundreds in unnecessary mechanic visits
✅ Broad Vehicle Compatibility
Supports all OBD2 protocols: CAN, KWP2000, ISO9141, J1850 PWM/VPW
Compatible with 99% of post-1996 US, post-2006 EU, and post-2009 Asian vehicles
✅ Compact, Plug-and-Play Design
No batteries required
Simple interface suitable for beginners
Color TFT display and built-in speaker
What's Included
Autel MS309 Scanner (Red)
User Guide
12-Month Warranty
Lifetime Free Technical Support
Important Notes
This tool is for OBD2 system diagnostics only and does not support full engine system scans. For advanced diagnostics, consider Autel ML629 or MK808BT.
