Autel MaxiScan MS309 Car Engine Auto Diagnostic OBD2 Scanner Code Reader Tool

Autel MaxiScan MS309 Car Engine Auto Diagnostic OBD2 Scanner Code Reader Tool

About this item:

【TURN OFF CHECK ENGINE LIGHT】:Autel MS309 OBDII scanner is an easy-to-use plug-n-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 check engine related fault codes, easily find out what caused the check engine light comes on, turn off MIL light(Malfunction Indicator Light).

【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 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, post 1996 in US, post 2000 for EU-based and Asian cars.

【RETRIEVE VEHICLE INFO】:The Autel MS309 automotive OBD2 scanner enables retrieval of the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car when you are buying a used car. The MS309 auto car scanner comes with LIFETIME FREE software updates. Purchase now and go fix something!

Practical Multi-Functions OBD2 Code Reader Scanner for All OBD II Protocol Cars Since 1996Autel MaxiScan MS309 OBDII Code Scanner - Turn Off Check Engine Light & Erase Codes

Autel MS309 scanner not only read and clear normal codes, but also retrieves generic (P0, P2, P3 and U0), manufacturer-specific (P1, P3 and U1), and pending codes.

Quickly scan and define vehicle Diagnostic Trouble Codes (DTCs) with this easy-to-use, compact code reader with the ability to view Freeze Frame Data, check I/M Readiness (Emissions) and monitor status. The MS309 is a go-to tool for quick vehicle health status.

Affordable and Professional OB2 Scan ToolAutel MS309 Multi-Function Scan Tool

DTC Definitions

Autel MS309 supprots DTC definitions. The definitons will be displayed bellow the codes. It provides you an easier way to read and a quick understanding of what\'s the meaning of the fault codes that was detected.No need to search online for what\'s the codes meaning.

View Freeze Frame

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, ignition timing advance, or closed loop status.

Smog Check

MS309 engine scanner code reader comes with I/M readiness status check function that shows you whether all the emission related systems and components are operating within allowable limits to help you pass the annual Smog Check.

The engine scanner shows readiness status with series of readiness monitors: continuous monitors like misfire, fuel system and comprehensive components monitor and non-continuous monitors like EGR system, O2 sensors, Catalyst, Evaporative System, O2 Sensor Heater, Secondary air, Heated Catalyst and A/C system.

Retrieve Vehicle Information

MS309 automotive scanner retrieves the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is especially useful while you take this little pocket OBD2 code reader with you while buying a used car to check whether the VIN matches and make sure the ECU has not been replaced with a garbage car.

Support CAN and OBDII ProtocolsVehicle Coverage

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 main function

Diagnostic codes

Red Codes

Eease Codes

View Freeze Frame

I/M Readiness

Vehicle Info

Exit

Retrieve Vehicle Information

MS309 automotive scanner retrieves the Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs).This function is especially useful while you take this little pocket OBD2 code reader with you while buying a used car to check whether the VIN matches and make sure the ECU has not been replaced with a garbage car.

MS309 engine scanner code reader comes with I/M readiness status check function that shows you whether all the emission related systems and components are operating within allowable limits to help you pass the annual Smog Check.

The engine scanner shows readiness status with series of readiness monitors: continuous monitors like misfire, fuel system and comprehensive components monitor and non-continuous monitors like EGR system, O2 sensors, Catalyst, Evaporative System, O2 Sensor Heater, Secondary air, Heated Catalyst and A/C Frame Data Display current sensor data including: Engine RPM, Calculated Load Value, Fuel System Status, Vehicle Speed, Short Term Fuel Trim, Long Term Fuel Trim, Intake Manifold Pressure, Timing Advance, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position, Oxygen sensor voltages/associated short term fuel.

MS309 scanner can read and clear trouble codes, also retrieves generic (P0, P2, P3 and U0), manufacturer-specific (P1, P3 and U1), and pending codes.

Work with all 1996 and later OBD II compliant US, European and Asian vehicles. Supports all OBDII protocols: KWP2000, ISO2000, ISO9141, J1850 VPW, J1850 PWM and CAN. it is powerful enough to retrieve the same information as large expensive scanners.

MS309 OBDII diagnostic Scanner Code ReaderY09 OBD2 Scanner Code ReaderY10 OBD2 Scanner Code ReaderELM327 OBD2 Scanner BluetoothUSB Cable OBDII Diagnostic scannerWIFI OBD2 Diagnostic Engine Light: read and clear codes and reset monitors, Turn off Check Engine Light (MIL). View Freeze Frame Data: check the ECU data, Multilingual menu and DTC definitions, Retrieve vehicle information, Smog Check, I/M readiness status.Diagnose and clear codes, Data waveform display, real-time data stream, I/M emission detection data, 2.8-inch color LCD display, Read Freeze Frame Data, Read the Vehicle Information, calculate load value, engine coolant temperature, get engine speed.Easily determine the cause of the engine light, read error code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine Speed.Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database); Clear trouble codes and turn off the MIL (\"Check Engine\" light)Read and Clear trouble codes, Display current sensor data : Engine RPM, Calculated Load Value, Fuel System Status, Vehicle Speed, Intake Manifold Pressure, Intake Air Temperature, Air Flow Rate, Oxygen sensor voltages/associated short term fuel.Display current sensor data: Engine RPM, Calculated Load Value, Fuel System Status, Vehicle Speed, Short/ Long Term Fuel Trim, Intake Manifold Pressure, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position and so on.Compatibility for VehiclesUniversalfor All Cars Protocol Vehicles 1996 and Newersupports 9 protocolssupports All OBD-II protocols carsfor All Cars Protocol Vehicles 1996 and NewerSupports all OBDII protocols

Specifications

Display: Backlit, 128x64 pixel display

Operating Temp: 0 to 60 ℃ (32 to 140 ℉)Storage Temp: -20 to 70 ℃ (-4 to 158 ℉)Power: 8 to 18 V provided via the vehicle batteryDimensions (LxWxH):110.3 mm (4.34\") x 69.5 mm (2.74\") x 20.2 mm (0.80\")Weight:NW: 180 g (0.39 lb.); GW: 210 g (0.46 lb.)

Package Included:

MS309(with 16 PINOBD2 cable)
CD
English User Manual

On Aug 3, 2026 at 03:15:26 PDT, seller added the following information: