launch x431 PRO3 ACE Diagnostic Tool

Supports Online ECU Coding, Topology Map, CAN FD, DoIP, SGW, and 38+ Service Functions

Key Highlights

1. Equipped with DBScar VII Bluetooth diagnostic connector supporting CAN FD and DoIP protocols
2. Full system diagnostics, bi-directional control, and 38+ service functions
3. Supports ECU offline/online coding, Refresh Hidden features, and VAG Guided Function
4. Includes FCA AutoAuth access
5. Provides Topology mapping functionality
6. Compatible with 24V Truck Module and expansion accessories including endoscopes, battery testers, oscilloscopes, sensors, IMMO programmers, and more to enhance diagnostic capabilities
7. Includes 2 years of free software updates
8. Offers the same functions as the launch x431 Pro3 APEX
9. Multi-language support: 25 languages including Italian, English, German, Japanese, Russian, French, Spanish, Portuguese, Polish, Turkish, Dutch, Greek, Hungarian, Arabic, Danish, Korean, Persian, Serbian, Finnish, Swedish, Czech, Simplified Chinese, and Traditional Chinese—eliminating language barriers with free switching

Compatible Expansion Modules

• x431 HDIII: Extends diagnostic services to 24V heavy-duty trucks
• X431 BST360: Monitors vehicle battery health status
• Video Scope: Inspects hard-to-reach areas such as pumps, engines, and pipes
• X431-PROG3: Enables advanced key programming and module cloning
• ADAS mobile/PRO: Calibrates driver assistance systems
• WiFi Printer: Prints diagnostic reports, live data, and other information quickly
• Scopebox: Quickly acquires circuit signals
• Sensorbox: Simulates vehicle sensor faults
• Multimeter: Measures physical parameters such as voltage, resistance, and frequency
• launch DOIP Adapter Cable: Enables DOIP functionality

Version Notice

• Global Version: For customers outside the UK and EU countries
• UK/EU Version: For customers in the UK and EU countries

X431 Pro3 ACE vs X431 Pro3s+ V2.0

In addition to aesthetic differences, the X431 Pro3 ACE introduces new features including topology diagram support, CAN FD protocol compatibility, oscilloscope expansion, key programmer expansion, and 38+ reset functions. Hardware upgrades include larger memory capacity and an updated Android 10 operating system for faster performance and more comprehensive diagnostic software.

Launch X431 Pro3 ACE Functions

All System Diagnosis

The LAUNCH X431 PRO3 ACE is a cost-effective automotive scanner offering OE-level diagnostics across all available electronic systems. It can read and clear diagnostic trouble codes, display live data streams, and retrieve control module information for systems including ECM, ABS, SRS, TCM, EPB, TPMS, SAS, A/C, BMS, ESP, and more.

OBD2 Full Function Support

Supports full OBD2 functions to turn off instrument fault indicators and perform tasks such as reading/clearing codes, O2 sensor testing, I/M readiness checks, on-board monitor tests, live data stream reading, freeze frame data display, EVAP system testing, and retrieval of vehicle information (VIN, Calibration ID, Calibration Verification Numbers).

Full System Diagnostics Coverage

Comprehensive diagnostics for: engines, Automatic Transmission, Airbags, IMMObilizer, Key Coding, ABS, Cruise Control, Instruments, Self-Leveling Suspension, Seats, Doors, Gateway, Steering Angle, Air Suspension, Body Systems, Electronic Power Steering & Motor Assisted Power Steering, Tyre Pressure, Rain Sensors, 4WD System Stabilizer, Intelligent Parking Assist, Door Motors, Audio Systems, Air Conditioning, Tiptronic, Anti-Theft, Soft Top, Headlamp Leveling, Central Locking, Automatic Clutch, DPF Reset, Electric Windows, Plip Programming, Heated Rear Window, Xenon Headlights, Wash/Wipe Systems, Fuel Burning Heater, Transfer Box, Seat Memory, Oil Reset, Sliding Doors, Electronic Throttle, Navigation System, Rollover Sensor, Multi-Function Steering Wheel, Auxiliary Heating, Electronic Parking Brake, Clutch Electronics, and more.

Full 10-Mode OBDII/EOBD/JOBD Diagnostic Functions

1. Reading Codes: Displays detailed descriptions of Diagnostic Trouble Codes (DTCs)
2. Erasing Codes & Reset: Turns off the Check engine Light (MIL), clears codes, and resets monitors
3. Data Stream: Reads and displays live ECU/PCM data streams with graphical plotting and freeze frame data storage
4. I/M Readiness Status: Indicates whether emissions-related systems are functioning properly and ready for inspection
5. Read Live Data Stream: Shows continuous live data from the vehicle in graphical (waveform) format
6. View Freeze Frame Data: Displays vehicle conditions recorded by the on-board computer at the time of an emission-related fault
7. O2 Sensor Test: Retrieves and displays results from the most recent O2 sensor monitor tests
8. On-Board Monitor Test: Retrieves and displays test results for emission-related powertrain components and systems
9. Read Vehicle Information: Displays VIN (Vehicle Identification Number), CID (Calibration ID), CVN (Calibration Verification Number), and more
10. Component Test: Actuates specific vehicle components via scanner commands to test operability

ECU Coding

The advanced ECU coding function re-flashes vehicle control modules, enabling updates to the latest software versions and reprogramming of adaptive data after component repairs or replacements. This addresses issues related to drivability, fuel efficiency, power loss, fault codes, and mechanical part durability. Note: ECU coding is not universal—verify compatibility using your VIN before purchase.

• Online Coding: Compatible with VW, Audi, Skoda, Ford, Lincoln, and Mazda only
• Offline Coding: Compatible with Benz, BMW, Ford, Mazda, Jaguar, Vauxhall, Opel, and others
• Refresh Hidden Features: Personalization options
• Component Matching: Includes matching, relearning, and calibration
• Customize OE Settings: Supports retrofitting and modification

Note: Coding functions vary by model. Confirm compatibility by providing your VIN.

Bi-Directional Control

Enables Active Tests to access vehicle-specific subsystems and components. The tool sends commands to the ECU to drive actuators, allowing system integrity verification through ECU data readings or direct actuator observation. Examples include actuating relays, injectors, coils, solenoid valves, and performing system tests—such as opening an EGR valve to observe changes in idle response and oxygen sensor voltage. Note: Active tests are not universal—check VIN compatibility before purchase, as availability depends on manufacturer, year, and model.

Additional active test examples that accelerate fault diagnosis include:

• Injector Buzz Test
• Fuel Pump & Valve Tests
• A/C Compressor Clutch Activation
• Wiper ON/OFF Control
• Throttle Modulation (ON/OFF)
• Acceleration Device Test

38+ Reset Functions

CAN FD and DoIP Protocol Support

CAN FD

The Launch X431 PRO3 ACE is the only product in its price range compatible with the CAN FD protocol, supporting the latest GM vehicles manufactured after 2020. It uses advanced CRC algorithms to handle CAN frame data sizes from 8 to 64 bytes, delivering faster performance than competing products and reducing undetected error risks for an enhanced user experience.

Vehicle Compatibility

Supports For Chevrolet Onix 2020-2021 year
Supports For Chevrolet Tracker 2020 year
Supports For Chevrolet Suburban 2021 year
Supports For Chevrolet Tahoe 2021 year
Supports For Buick
Supports For Cadillac Escalade 2021 year
Supports For Cadillac Escalade 2021 year
Supports For GMC Yukon 2021 year
Supports For GMC Yukon XL 2021 year
Supports For Holden
Supports For DAEWOO
Supports For Alpheon
Supports For Ravon
Supports For Pontiac
Supports For Saturn
Supports For Hummer

DOIP (Diagnostics over Internet Protocol)

With Diagnostics over DoIP, diagnostics introduced over UDS are used over TCP/IP and Ethernet. This enables much higher data rates than with CAN. That makes LAUNCH X431 PRO3 ACE save both in terms of time and expenses in the case of complex diagnostic tasks and flash applications. Compatible with BMW (F&G chassis), Volvo models (2018 later), Land Rover & Jaguar models (2017 later).
(Note: this is car list that CANFD and DIOP supports, X431 PRO3 ACE also supports other cars, more than about 100+ brands, like for BMW, for VW, for Ford etc. There is the detailed car list in the following description, you can check.)

FCA AutoAuth Access: Bypass SGW in FCA Vehicles

You now have access to the security gateway module on 2018 and newer Fiat Chrysler vehicles, so that the diagnostic tool can clear codes, run bi-directional active tests, actuations, relearns or even IMMO key programming (pulls PIN & write), ADAS calibration assistance etc.
*Note: Update to get this new function. Since November 23, 2022, all FCA-supported regions will require an account purchase to log in AutoAuth. The payment is charged by AutoAuth directly. LAUNCH is not involved in any transaction process. Reach us for more detail.

Remote Diagnosis

Remote diagnosis can realize real-time communication between equipment and equipment or equipment and computers, complete remote diagnosis of vehicles, and make it a reality for repair technicians to diagnose vehicles thousands of miles away.

Auto VIN Recognition

Through "smart diagnosis", you can quickly read the vehicle VIN code, quickly enter the diagnosis, and check the historical diagnosis records.

Additional Features

IMMO Function

LAUNCH X431 PRO3 ACE scan tool has the immo function which is similar to X431 V's anti-theft key car model. It can add a new key and disable the lost car keys, but only covers some 3.5th gen. Volkswagen, Audi, Skoda, Seat, and some Asian cars.

4-in-1 Live Data Stream

The scan tool X431 PRO3 ACE shows you live sensor data and provides data graphing for intuitive diagnostics and monitoring your vehicle performance, helping customers better analyze abnormal parameters.
Data Recording Functionality is convenient—customers can record the live data stream for up to 4 simultaneous PIDs. Once recorded, they can be played back in text format and/or graph format.
Data Playback supports two independent graphs or 4 combined PID graphs. The playback timeline can be scrolled, paused, viewed, etc. There's quite a bit of power in the graphing.

One-Click Report Generation

Launch X431 PRO3 ACE OBD2 scanner supports auto-generation and storage of vehicle diagnostic reports, enabling mechanics to perform vehicle inspection and maintenance efficiently.

Print and Share Reports

The diagnostic report helps save time analyzing problems—it’s ideal for repair shops. Mechanics can print out the vehicle report for customers, and the report can also be shared via email.

Error Code Explanations

Click on the “Code Search” icon to dig deeper. It will switch to Google to show more analysis of trouble codes, reasons why such faults occur, and even YouTube links.

Online DTC Code Search

Search the DTC definition on “Google” for more online help & tips.

Supported Vehicle List

Supports 10,000+ car models from America, Europe, Asia (including Russian, Chinese, Indian, Malaysian, Australian, Brazilian, Latin American, and other national models), covering cars, SUVs, minivans, 12V light-duty trucks, gasoline cars, and diesel cars.

European Brands

For Audi, For Mercedes-Benz, For Maybach, For BMW, For Mini, For HCBMW, For Rolls-Royce, For Citroën, For Fukang, For Ferrari, For Fiat, For Abbas, For Lancia, For Alfa Romeo, For NanjingFiat, For GAZ, For Land Rover, For Jaguar, For Martha Lahti, For Opel, For GMSA, For Vauxhall, For Peugeot, For DFPeugeot, For Porsche, For Renault, For Dacia, For Rover, For SAAB, For Škoda, For SEAT, For Smart, For Transporter & V-Class, For VAZ, For Volvo, For Volkswagen, For Bentley, For Bugatti

American Brands

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

Asian Brands

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

Australian Brands

For Australia Ford, For Australia Holden

Chinese Brands

For Chang'an, For Changan (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 Dragon, For Kowloon, For Lifan Auto, For GAC Motor (GSMW), For SAIC Chase, For MVW Automotive, For Chery, For SAIC & MG, For SGM, For CHChevrolet, For CHBuick, For CHCadillac, For Tianjin FAW, For XinKai, For ZhongShun, For Zotye, For Zhongxing

Technical Specifications

OS: Android 10.0
Processor: 2.0GHz, quad-core
Memory: 4GB
Storage: 64GB
Display: 10.1 inches, LCD screen
Resolution: 1280×800
Camera: Rear 8-megapixel
Wi-Fi: 2.4GHz / 5GHz
Battery: 6300mAh, 7.6V
Working temperature: 0℃～50℃
Dimensions: 435 × 305 × 372 mm