Autel MaxiScan MS309 Universal OBD2 Scanner Check Engine Fault Code Reader, Read Codes Clear Codes, View Freeze Frame Data, I/M Readiness Smog Check CAN Diagnostic Scan Tool
Brand: Autel
Color: Red

Turn off check engine light
Autel MS309 obd2 engine analyzer read engine related fault codes stored(hard codes) and pending codes (intermittent codes) in the ECU and display DTCs(diagnostic trouble codes) definitions on the TFT color display. It retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes. The MS309 car engine code reader helps you figure out why the check engine light is on, fix the problem and clear the codes, turn off MIL(Malfunction Indicator Light) light and reset monitors.
View Freeze Frame Data
The Autel MS309 auto code reader is most useful while diagnosing continuous monitor faults like engine misfire and fuel control concerns.
When an emissions related fault occurs, the OBD II system not only sets a code but also records a snapshot of the vehicle operating parameters to help in identifying the problem. This set of values is referred to as Freeze Frame Data and may include important engine parameters such as engine RPM, vehicle speed, mass airflow, engine load, fuel pressure, fuel trim value, engine coolant temperature and etc.
Smog Check
MS309 engine scanner code reader comes with readiness status check function that shows whether all the emission related systems and components are operating within allowable limits to help pass the annual Smog Check.
Powerful Compatibility
Autel MS309 car OBD2 scanner is Compatible with domestic, Asian and European vehicles, 1996 and newer. And the auto scanner supports all 5 OBDII protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN.
Retrieve Vehicle Information
MS309 automotive scanner retrieves the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is especially useful when you buy a used car and use this little pocket code reader to check whether the VIN matches and make sure the ECU has not been replaced by a garbage car.

👍【TURN OFF CHECK ENGINE LIGHT】Autel MS309 OBD2 scanner is an easy-to-use plug-and-play check engine code reader that read and clear codes. This little code scanner retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes and displays DTC definitions on the TFT color screen. It can easily find out what caused the check engine light on, turn off MIL light.👉NOTE: It does not supports full engine system, if need, pls consider ML629/ MK808BT, e
👍【FREEZE FRAME DATA FOR ACCURATE DIAGNOSIS】This MS309 check engine code reader comes with viewing freeze frame function that enables you to retrieve data recorded in the ECU of the condition under which the fault occurs to figure out why the check engine light is on and cut down test drive cycle verification time. It includes important engine parameters such as RPM, vehicle speed, mass airflow, engine load, fuel pressure, short/long term fuel trim, engine coolant temperature and etc.
👍【READINESS STATUS TO PASS SMOG CHECK】The Autel MS309 car diagnostic scanner tool comes with I/M Readiness function to check the operations of the Emission System on OBD2 compliant vehicles. It includes vehicle-specific number of monitors like misfire monitor, fuel system monitor, comprehensive components monitor, O2 sensors, EVAP system and etc, making this OBD2 scan tool an excellent scan tool to help get your vehicle ready to pass the annual smog check.
👍【UNMATCHED COMPATIBILITY】Autel MaxiScan MS309 compact pocket code reader supports all OBD2 protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. This OBD2 code scanner is compatible with all OBDII-Compliant vehicles, passenger cars or light trucks. For OBD2 cars, usually, EU cars after 2006, Asian cars after 2009, US cars after 1996. 👉NOTE: It does NOT supports ABS, brake, SRS, full Engine systems, etc. If need pls consider ML629/ MK808BT or above.
👍【RETRIEVE VEHICLE INFO】This portable OBD2/EOBD scanner MS309 enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is useful to check whether the ECU matches when you are buying a used car. It comes with 30 days Amazon return policy, seller 1 year worry-free warranty. A very handy little tool to have with your bigger scanner. A must to keep in your car. Contact info: 🚘autelofficial @ outlook . com🚘.