TOPDON TopScan Master OBD2 Diagnostic Scanner

Professional diagnostics, AI-powered repair guidance, and full vehicle access, all from your smartphone.

The TOPDON TopScan Master is a next-generation diagnostic tool designed for workshops, mobile mechanics, and serious DIY users. It delivers full-system diagnostics, bi-directional control, 30+ service functions, and advanced features like DOIP, SGW access, and TopFix AI, giving you deeper insight, faster troubleshooting, and smarter repairs.
 

Key Features

• TopFix AI Assistant: AI-driven fault analysis with step-by-step repair guidance and technical insights
• Full System Diagnostics: Access all ECUs including engine, transmission, ABS, airbag, BCM and more
• Bi Directional Control: Actively test components like injectors, windows, mirrors, fuel pumps and more
• DOIP Protocol Support: Diagnose newer vehicles with faster communication and deeper access
• SGW Gateway Access: Supports FCA, Renault and Nissan secure gateway diagnostics
• Wireless Bluetooth Operation: Diagnose vehicles without cables using your smartphone
• NFC Quick Installation: Tap your phone to instantly download and install the app without searching

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Functions

• Read and clear diagnostic trouble codes across all systems
• AutoVIN automatic vehicle identification
• AutoScan full system scan in one click
• Live data stream with multi-graph display
• Freeze frame data analysis
• O2 sensor testing
• EVAP system testing
• On-board monitor testing
• Generate diagnostic reports and share results
• Record and replay live data for deeper analysis

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Full OBD2 Modes

• Read DTCs
• Clear DTCs
• Live Data
• I/M Readiness
• Freeze Frame
• O2 Sensor Test
• On-board Monitor Test
• EVAP Test
• Vehicle Information
• DTC Lookup

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Service Functions

• Oil Reset
• EPB Reset
• SAS Reset
• BMS Reset
• Throttle Relearn
• ABS Bleeding
• Injector Coding
• DPF Regeneration
• TPMS Reset
• Gearbox Matching
• Suspension Calibration
• Airbag Reset
• EGR Reset
• Immobilizer Functions (vehicle dependent)
• Window Initialization
• Sunroof Initialization
• Seat Calibration
• Headlight Calibration
• Transport Mode
• Language Change
• A/F Reset
• NOx Sensor Reset
• Start Stop Reset
• Cylinder Balance Test
• VGT Learning
• ODO Reset
• Water Pump Test
• Tire Reset
• Gear Learning
• More depending on vehicle

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Advanced Features

• TopFix AI: Fault code explanations with guided repair steps
• DTC Repair Guide: Detailed troubleshooting and solutions
• Technical Service Bulletins: Access manufacturer repair data
• Warning Light Library: Understand dashboard warning lights instantly
• DLC Location Guide: Quickly find OBD port locations
• Performance Testing: Measure 0 to 100, 1/4 mile and acceleration performance
• Volumetric Efficiency Test: Analyze engine airflow and efficiency
• Vehicle Health Reports: Generate before and after reports

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Real Time Data & Reporting

• Display up to 4 data streams simultaneously
• Visual graphs and dashboards for easier analysis
• Record and replay data sessions
• Generate and share professional diagnostic reports

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Connectivity and Operation

• Bluetooth 5.0 wireless connection
• NFC instant app pairing
• Works with Android and iOS devices
• Operate directly from smartphone app
• Over-the-air updates via app

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Technical Specifications

• Connection Type: Bluetooth 5.0
• Interface: OBD2 16 pin
• Supported Protocols: CAN, ISO9141-2, ISO14230-4, SAE J1850, DOIP
• Operating Voltage: 9V to 18V
• Working Temperature: -10°C to 50°C
• Storage Temperature: -20°C to 70°C
• Range: Up to 10 meters