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LAUNCH X431 PRO3 ACE V5.0 OBD2 Diagnostic Scanner ECU Coding Bidirectional
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LAUNCH X431 PRO3 ACE V5.0 Bidirectional Diagnostic Scanner | ECU Coding, Topology Mapping, CAN FD & DoIP, 38+ Reset Services, HD Truck Ready, 2-Year Free Updates
The LAUNCH X431 PRO3 ACE V5.0 is a top-tier, workshop-grade diagnostic platform engineered for professional technicians who demand speed, accuracy, and future-proof capability. Built on 2025 hardware architecture with a powerful quad-core processor, massive 64GB storage, and advanced protocols like CAN FD and DoIP, this tool delivers true OE-level diagnostics across 10,000+ vehicle models worldwide. Featuring full bi-directional control, advanced ECU coding (online & offline), topology mapping, and 38+ reset services, the PRO3 ACE replaces multiple factory tools while dramatically increasing workshop efficiency. With 2 years of free software updates, 5-year warranty, lifetime technical support, and extensive expansion options (HD truck, ADAS, TPMS, oscilloscope, videoscope), this is not just a scan tool—it’s a long-term investment in professional diagnostic excellence.
⭐ Key Functions & Features (Customer-Focused & Value-Driven)
🔧 OE-Level Full System Diagnostics
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Diagnose ALL vehicle systems (Engine, Transmission, ABS, SRS, BCM, Chassis, Electrical, ADAS & more)
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Covers 99% of vehicles on the road with dealer-level accuracy
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Supports OBD I & OBD II
🧠 Topology Mapping Technology
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Visual system architecture showing healthy & faulty modules instantly
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Faster fault isolation → less diagnostic time, more profit
🔄 Full Bi-Directional Control (Active Tests)
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Command actuators directly from the tablet
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Test fans, injectors, throttle, windows, locks, lights, fuel pumps, mirrors & more
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Diagnose without dismantling components
🔐 Advanced ECU Coding & Programming
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Online Coding (cloud-based OEM data access)
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Offline Coding (VIN write, module replacement)
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Component matching, calibration & initialization
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Refresh hidden features, disable annoying factory limits
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IMMO / Anti-Theft services supported
🔁 38+ OE-Level Reset & Relearn Services
Includes but not limited to:
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Oil / EPB / BMS / DPF / SAS / ABS Bleeding
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TPMS / Injector Coding / Gearbox & Throttle Relearn
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Air Suspension / Sunroof / Window / Seat Calibration
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AdBlue / NOx / GPF Regeneration
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VIN Write / Transport Mode Delete
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High-Voltage Battery Diagnostics (EV support)
📊 Advanced Live Data & Reporting
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12-in-1 Live Data Streams with graphs
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Record, replay & analyze sensor data
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One-click Health Report (PDF) – generate, print, or share with customers
🌐 Remote Diagnosis & Cloud Support
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Diagnose vehicles remotely via LAUNCH cloud
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Share data with other technicians in real time
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Online DTC repair tips & guided diagnostics
🚛 Expandable to Heavy-Duty & ADAS
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Compatible with SmartLink HD modules (12V–24V trucks)
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Optional ADAS calibration, TPMS, oscilloscope, videoscope, printer, battery tester
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Ideal for mixed vehicle workshops
🚀 Future-Ready Protocols & Hardware
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CAN FD & DoIP support for modern vehicles
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Quad-core 2.0GHz CPU for fast scanning
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64GB storage for vehicle history & updates
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Stable Wi-Fi + Bluetooth connectivity
🌍 Global Coverage & Multi-Language Support
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Supports 24+ languages
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Global Version works worldwide (EU version restricted to Europe)
🛡️ Warranty & Updates (Premium Assurance)
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2 Years Free Software Updates
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5 Years Warranty
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Lifetime Technical Support
LAUNCH X431 PRO3 ACE V5.0 , Bidirectional Scan Tool with DBSCar VII Connector,HD Truck Scan,OEM Topology Map,Online Coding &38+ Reset Functions,CAN FD & DoIP,FCA SGW,2-Year Free Update
What is the different between EU Version and Global Version
1. EU Version can Only be used in European countries and cannot be used in other countries
2. The Global Version supports use anywhere in the world
Please select the correct version you need to avoid affecting normal delivery
The Key Reason to choose LAUNCH X431 PRO3 ACE
1. ALL System ALL Function Diagnose
2. Topology Map + 64G Storage + 4G Memory.
3. CAN FD protocol,can support more car models
4.Full Bi-directional Control ((Active Test))
5.ECU Coding & Online Coding & Key Programming
6.Support OBD I & OBD II vehicle.
7.Remote Diagnoses
8. 37+ OE-LEVEL Relearn Reset Service
9.ADAS Calibration(optional)
10.Health Report Generate&Share&Print
11.Guided Function for VW (Step-by-Step Guide)
12. Stable WIFI Connection
13. Anti-Theft IMMO Service
14.Refresh Hidden Features
15. Cover 10,000+ models
16. Full Set Car Connector and Cable Kit
17. Work with X431 SmartLinkC Heavy Duty Module to Test 24V Truck.(need extra-buy)
18. 2 Years Free Software
19. 5 Years Warranty+ LifeTime Tech Support
20.WIFI printer extension (Pay extra)
21. Endoscope Extension (Pay extra)
22.TPMS extension (Pay extra)
23.ADAS Extensions (Pay extra)
24. PRO3S+ V5.0 with DBSCAR VII
And more...

24 Language Supports,
Switch for freeEnglish, French, Spanish, German, Russian, Korean, Japanese, Portuguese, Italian, Polish, Dutch, Hungarian, Finnish, Simplified, Czech, Turkish, Greek, Arabic, Danish Persian, Romanian, Serbian, Swedish, Chinese Traditional
Warm TIP: The factory presets the language and the model software in English. After switching the language, customer needs to re-download the model software in the corresponding language.

Topology Mapping
Support diagnose all the systems of the car in seconds, and all the healthy and unhealthy data in the car's system will be displayed, pinpointing the car's faults, greatly improves work efficiency and saves time.

OE-Level All System Diagnosis
As a universal scan tool, the Launch scanner X431 Pro3 ACE v5.0 automotive obd2 scanner can diagnose all systems on 99% of vehicles on the road and does so to OE levels. Rather than using separate OE diagnostic tools, the Launch scanner X431 Pro3 ACE v5.0 helps you increase efficiency and control costs. The systems include but are not limited to:
PCM (Drive System): Engine, Transmission, Transfer case, Electrical Machine Electronics, Gear, and more…
Chassis System: Accumulator Management Electronics, Steering, Integrated Chassis Management, Tyre Pressure Control, Active Cruise Control, Braking System, Suspension, TPMS, and more…
BCM (Body System): SRS Airbag, Camera, Audio Radio, Gateway, Cluster Dashboard, Rain Sensors, Charging Interface Module, Parking Assistance, Power Control Unit, Touch box, Light, Battery Charging System, Head-up Display, Wipe Control System, Roof, Seat & Door Motor system, ABS ESP system, Air Condition. Electric Windows, and more…
Electrical System: Centralized Control System Chassis Integrated Control and Safety System, Intelligent Body Electronic System, Communication and Information/Entertainment System.
Active Test ( Bi-directional Test )
With this diagnostic tool’s Active Test, you can output the command into the ECU in order to turn on/off actuators, to find faults in the subsystems of your car effortlessly, without using the vehicle’s control:
[ Turn on the radiator fan | Modulate the throttle | Open/close windows | Operate mirrors | Turn on/off the lights | Turn on/off the sound horn | Test door lock … ]

Advanced ECU coding
With this function,LAUNCH X431 PRO3 ACE will improve vehicle performance, customize individual customization, refresh hidden functions, disable the annoying functions, code the adaptive data for certain components after repairs or replacements, customized configurations for high-end models,etc to enhance fuel efficiency and ensure safe driving.
1.Online Coding: this LAUNCH scan tool can directly access the online vehicle repair data to do high-level repairs.
2.Offline Coding: read the code from the original module, and then write the code for the new module,for example ,write a VIN to new ECU.
3.Component Matching:Matching,relearn ,Cali-b-ration, or initia-li-zation adaptive data for certain components after repair or replacements,such as: suspension cali-b-ration ,seat matching ,sunroof initia-li-zation,gearbox matching,injector cali-b-ration, transmission adap-t-ion.Delete Adap-t-ation Data, Tank Cali-b-ration,Height sensor system cali-b-ration,PSM Sensor Cali-b-ration ,etc.
4.Re-trofit & Mo-dification: for example, re-trofit battery with different type, Upgrading the headlights, taillights, and interior lighting to LED lights,etc.
5.Refresh the Hidden Features:for example,disable auto start-stop, disable daytime running light, disable safety belt chiming ,delete transport mode .delete transmission adaptive value.setting speed limits,etc.
Examples of ECU Coding:1)The new Ford Focus can be upgraded to a tire pressure monitoring function by flushing the ECU. This feature is especially important for those who like to drive long distances, significantly improving the safety of the car;2)Mercedes-Benz E-Series can change the much-criticized air conditioning mode by brushing the ECU to improve passenger comfort;3)VW Passat can be swiped to "modify home/leave time";4)It is important to note that, due to hardware and other reasons, such as the Audi Q5, if you want to brush the "home/away function", you must have the automatic headlights function. ***Note: All above functions are not compatibility with all vehicles, please send car make, year, model, VIN# and functions you need to us to check vehicle compatibility.

38+ Reset Service
Comprehensive Advanced Service & Reset Functions
This diagnostic system supports an extensive range of advanced maintenance, calibration, relearn, and reset services, enabling technicians to perform dealership-level operations efficiently and accurately.
Engine, Oil & Fuel System Services
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Oil Lamp Reset Service – Resets the engine oil life monitoring system after oil changes, ensuring accurate service interval tracking.
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Fuel Injector Coding – Writes new injector codes into the vehicle ECU to ensure precise fuel injection quantity per cylinder.
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Fuel Injector Balance – Evaluates and balances injector performance for smooth engine operation.
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Reset Fuel Trim – Resets adaptive fuel correction values stored in the ECU.
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Throttle Adaptation (Idle Relearn) – Reinitializes throttle actuators to factory default settings to improve idle stability and throttle response.
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A/F Reset – Resets air–fuel ratio learning values to restore optimal combustion performance.
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Fuel Economy Test – Assesses fuel efficiency and engine performance parameters.
Brake, Steering & Stability Systems
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EPB Reset – Retracts and resets electronic parking brake calipers after brake pad replacement.
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ABS Bleeding – Removes air from the ABS hydraulic system to restore braking sensitivity and performance.
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SAS Steering Angle Sensor Reset – Calibrates the steering angle sensor to zero for proper stability and alignment.
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Zero-Point Calibration – Resets sensor reference points to factory baseline values.
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Interactive Vehicle Dynamics (IVD) Initialization Sequence – Reinitializes dynamic stability and handling systems.
Suspension, Chassis & Ride Control
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Air Suspension Reset – Calibrates air suspension height and pressure after component replacement or repair.
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Clutch System Learn – Relearns clutch engagement parameters for smoother shifting.
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VGT Relearn – Recalibrates variable geometry turbocharger parameters.
Transmission & Drivetrain Services
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Gearbox Reset – Resets transmission adaptive data to improve gear shifting quality.
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Gear Learning – Relearns gear position and engagement parameters.
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Halt/Resume Transmission Adaptive Learning – Controls adaptive transmission learning during service procedures.
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Transmission Service Fast Relearn – Accelerates the transmission relearning process after repairs.
TPMS, Tires & Wheels
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TPMS Service – Displays sensor IDs, inputs replacement IDs, and tests tire pressure sensors.
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Tire Reset – Resets tire-related monitoring data after replacement or rotation.
Exhaust, Emissions & Diesel Systems
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Diesel Particulate Filter (DPF) Regeneration – Performs active regeneration to clean the particulate filter.
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GPF Regeneration – Regenerates gasoline particulate filters to restore exhaust efficiency.
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AdBlue Reset (Diesel Engine Exhaust Gas Filter) – Resets urea system parameters after DEF replenishment.
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NOx Sensor Reset – Clears learned catalytic converter values stored in the ECU.
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EGR Reset – Resets exhaust gas recirculation system parameters.
Electrical, Battery & High-Voltage Systems
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BAT Battery Service (BMS Reset) – Registers new batteries and resets battery management parameters.
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High Voltage Battery Diagnostics – Diagnoses and evaluates high-voltage battery systems in hybrid and electric vehicles.
Comfort, Body & Convenience Systems
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AFS Headlamp Reset – Initializes adaptive front-lighting systems to restore proper illumination angles.
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Sunroof Initialization – Resets sunroof control unit and restores smooth operation.
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Normalise Slide/Tilt Sunroof – Calibrates sunroof movement and positioning.
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Initialisation of Automatic Tailgate – Resets power tailgate opening and closing functions.
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Windows Calibration – Calibrates power window limit positions.
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Initialise Power Window Regulators – Relearns window motor control parameters.
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Seat Calibration – Calibrates electric seat positions and memory functions.
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Seat Standardisation – Normalizes seat movement and reference points.
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Language Change – Changes vehicle system language settings.
Advanced System Controls & Configuration
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Delete Transport Mode – Disables factory transport mode to activate full vehicle functionality.
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VIN Registration (Write) – Writes or registers the vehicle identification number into control modules.
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BSI Solenoid Test – Tests body system interface solenoid functions.
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SWS Initialization – Initializes steering wheel sensor systems.
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Camshaft / Crankshaft Sensor Relearn – Relearns engine timing sensor positions.
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Relearn Vehicle Data – Resets and relearns stored vehicle adaptation data.
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Coolant Bleeding – Removes air from the cooling system to prevent overheating.
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AC System Relearn / Initialization – Resets and recalibrates air conditioning system components.

Auto VIN and Auto Scan
Auto VIN functions allowing you to quickly figure out Vehicle Identification No. (VIN) to perform fast diagnostic.(Note:it does not work for all vehicles) If the auto scan is not supported,please try to 1.manually input vin 2.automatic detection 3.manual selection
12-in-1 Live Data Stream Insights
Visualize sensor data through Live Data streams and graphs, recording and replaying data stream, including common values like Transmission Temperature and Misfire.
Remote Diagnosis
You can LAUNCH family of other diagnostic scanners for remote diagnosis, realizing the reality of sharing mechanic technology in the cloud without leaving home. With this feature, you can even diagnose abnormal vehicles thousands of miles away and enhance the effectiveness of your business.
One-Click Generate Health Report
Health Report will scan all vehicle modules and give you a status list for each modules condition. Also known as “Global Test” or “Full Scan” .This diagnostic tool can automatically generate a diagnostic report when diagnostic work is successfully finished.The reports are saved to the internal memory for later review. The reports are able to be saved in PDF format, and as the tablet is equipped with WI FI, these can be send to the office or directly to the customer.
One to One Online Feedback- In-Time Problem Solving,
LAUNCH X431 Pro3s+ v5.0 provides you with a Feedback function to share any problems you encounter in the process of diagnosis. We will make every effort to perform a no-delay problem solving and makes improvements on product quality according to your problems and suggestions, thus offering you a higher quality user experienceOnline Code Search allows you to connect with online browswer for massive online code information,Help you to eliminate Guesswork and Get Directly to the Fix Quickly.
DTC Help & Repair Tips
Compared to ONLY providing simple DTC definition of other scanner ,LAUNCH X431 Pro TT Scanner provides comprehensive repair support by offering detailed explanations, probable causes, and troubleshooting guidance for each Diagnostic Trouble Code (DTC) that is generated during a scan. This additional information assists you in identifying the root causes of issues and allows for more accurate and efficient diagnosis.
and more...

Supports More expansion module
1. X431 VSP-600 Videoscope (For inspection of hidden and narrow parts of the engine, fuel tank, brake system, etc.)
2. X431 TSGUN: (You can use it not only to activate the sensor ID, tire pressure, sensor frequency, tire temperature and battery status; you can also code sensor data to a blank LAUNCH branded sensor in three ways: automatically, manually and by activating a copy; at the same time, you can write the newly coded sensor ID to the vehicle ECU.)
3. X431 SmartLink HD Module -LAUNCH smartlink HDIII add-on module is an essential truck module which can turn your X431 scan tools into full function heavy duty truck diagnostic tools,working on both heavy-duty(Class 4 through 8) and medium-duty trucks(Such as heavy trucks, city buses, bulldozers, excavators, etc.)
4. X431 ADAS Mobile/ADAS PRO -Compatible with LAUNCH X431 ADAS Mobile to calibrate advanced driver-assistance systems, such as ACC, AEB, and more. ADAS Calibrate a wide range of camera-based & radar-based driver assistance systems, Operate ADAS calibration to vehicle cameras, LKA system, ACC system, LDW system, and AVM system. ADAS is designed to improve driver, passenger and pedestrian safety by reducing both the severity and overall number of motor vehicle accidents. ADAS can warn drivers of potential dangers, intervene to help the driver remain in control in order to prevent an accident and, if necessary, reduce the severity of an accident if it can’t be avoided.
5. X431 Printer (Print out diagnostic data/ reports.)
6.X431 BST360 battery test.(For Battery Cranking system Test, Battery Charging system Test, Battery Health Test) Allows you to fix battery detection faster and easier. For battery cranking system test, battery charging system test, battery health test
7.X431 S2-2 Sensorbox:Diagnose and simulator vehicle sensor faults quickly and conveniently.
8.X431 O2-2 Oscilloscope: This module can make the auto repair technician quickly judge the faults on automotive electronic equipment and wiring. Measure and test all the electrical, electronic components and circuits.
9.X431 Multimeter:Allows you to measure the physical parameters such as voltage, resistance, frequency etc.
10.Electric Vehicle Diagnose(New Energy): This function only applies to the new energy vehicles. There are two function modules available: Vehicle diagnosis and battery pack detection. Note: This function needs to work with New Energy Vehicle Diagnosis Add on Kit (optional).
11.LAUNCH X431 SmartlinkC HD module: This function enables X431 PRO3S+ V5.0 to do full comprehensive HD truck diagnostic functions for cars and trucks from 12V to 24V.

LAUNCH X431 PRO3S+ V5.0 Supports car list :
- EUROPE Cars :
For Audi, For Mercedes-Benz, For Maybach, For BMW, For Mini, For HCBMW, For Rollsroyce, For Citroen, For Fukang, For Ferrari, For Fiat, For Abbas, For Lancia, For Romeo, For NanjingFiat, For GAZ, For LandRover, For Jaguar, For Martha Lahti, For Open, For GMSA, For Vauxhall, For Peugeot, For DFPeugeot, For Porsche, For Renault, For Dacia, For Rover, For SAAB, For Skoda, For Seat, For Smart, For Transporter&V-Class, For VAZ, For Volvo, For VW, For Bingley, For Bugatti
- America Cars :
For Brazil Fiat, For Brazil GM, For Chrysler, For Dodge, For Jeep, For GM, For Buick, For Cadillac, For Chevrolet, For Ford, For ChinaFord, For Lincoln, For EuropeanFord
- Asia Cars :
For Daewoo, For Daihatsu, For Honda, For Acura, For DFHonda, For GZhonda, For Hyundai, For Ikco, For India Mahindra, For India Maruti, For India Tata, For JPIsuzu, For TLIsuzu, For Kia, For Luxgen, For Mahindra, For Malaysia Asia Pacific Perodua, For Malaysia Asia Pacific Proton, For Maruti, For Mazda, For YQMazda, For Mitsubishi, For Nissan, For Infiniti, For DFNissan, For Perodua, For Proton, For SAIPA, For Ssangyong, For Subaru, For Suzuki, For TATA, For Toyota, For Lexus, For TJToyota
- Australia Cars :
For Australia Ford, For Australia Horton
- China Cars :
For Chang'an, For ChangCheng, For Chenghe, For DR automotive, For ECUADI, For BYD, For Foton, For Hafei, For Haima, For Brilliance, For Jiangling, For Iveco, For Jac JAC refine general, For Gonow Auto, For Xiamen Golden, For Kowloon, For Lifan auto, For GSMW, For SAIC Chase, For MVW Automotive, For Chery, For SAIC and MG, For SGM, For CHCHEVROLET, For CHBuick, For CHCadillac, For Tianjin FAW, For XinKai, For ZhongShun, For ZOTYE, For Zhongxing
(Note: Car brands marked in Red can only be used after purchase in the mall)




Advanced Performance Hardware Architecture
The LAUNCH X431 PRO3 ACE is powered by a high-performance 2.0GHz quad-core CPU, delivering significantly faster processing speed and smoother multitasking compared to previous generations. This enhanced running speed ensures rapid system scanning, quick ECU communication, and seamless execution of advanced diagnostic functions. Built on the 2025 hardware version, the device reflects the latest advancements in diagnostic technology, offering improved stability, durability, and long-term reliability.
With 64GB internal storage, the scanner provides ample space for diagnostic data, vehicle history records, software expansions, and system updates, ensuring uninterrupted professional use in demanding workshop environments.
Expandable Diagnostic Capability & Commercial Vehicle Support
Designed for versatility, the LAUNCH X431 PRO3 ACE supports module expansion, including HD modules for 24V truck diagnostics, enabling technicians to diagnose not only passenger vehicles but also heavy-duty and commercial trucks. This makes it a comprehensive solution for mixed vehicle workshops handling both light and heavy vehicles.
The device has undergone external testing certification and passed with excellence, confirming its compliance with professional diagnostic standards and performance benchmarks.
Latest Software Platform with Long-Term Updates
Equipped with the 2025 software version, the PRO3 ACE provides access to the latest diagnostic algorithms, system optimizations, and expanded vehicle coverage. Users receive 2 years of free updates, ensuring continuous compatibility with newly released vehicles, updated ECU software, and emerging automotive technologies.
Advanced Connectivity & Smart Features
The LAUNCH X431 PRO3 ACE integrates multiple smart connectivity options to enhance diagnostic efficiency:
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Bluetooth for wireless VCI communication
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Wi-Fi for fast software updates and cloud services
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Online Database Access for guided diagnostics and repair references
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Remote Diagnosis capabilities for expert support and off-site troubleshooting
Additionally, the built-in rear 800W camera provides high-resolution visual assistance, allowing technicians to capture images during inspections and enhance diagnostic accuracy.
Professional-Level Diagnostic & ECU Functions
This tool delivers an extensive range of advanced diagnostic operations required by modern vehicles:
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Coding, Matching, and AF Adjustment for component calibration and vehicle customization
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Actuation Tests and Component Tests for real-time control and verification of vehicle subsystems
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Read Code, Delete Code, and Read Live Data Stream for accurate fault diagnosis and performance monitoring
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ECU Replacement support to assist with control unit installation and adaptation
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Audi / VW Firmware Protection Cancel Features, enabling access to restricted functions on supported VAG vehicles
These capabilities make the PRO3 ACE suitable for in-depth diagnostics, advanced repairs, and professional workshop-level service.
Broad Vehicle Coverage & Future-Ready Protocols
The LAUNCH X431 PRO3 ACE supports over 10,000 vehicle models worldwide, offering full-system OBD / OBD2 diagnostics across multiple brands and regions. Support for advanced communication protocols such as CAN FD and DoIP ensures compatibility with next-generation vehicles, including modern electric and high-speed network architectures.
Whether diagnosing passenger cars, luxury models, or commercial vehicles, this scanner is built to handle current and future automotive platforms.
Combining powerful hardware, advanced software, intelligent connectivity, and professional-grade diagnostic depth, the LAUNCH X431 PRO3 ACE stands as a complete, future-ready diagnostic solution. It is engineered for workshops, technicians, and automotive professionals who demand speed, accuracy, scalability, and long-term value from their diagnostic equipment.
This tool is not just an upgrade—it is a strategic investment in modern vehicle diagnostics and repair excellence.