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Professional full-system diagnostics, ECU coding & bi-directional control

The LAUNCH X-431 PRO3 APEX is a professional 10.1-inch diagnostic tablet designed for independent garages, automotive technicians and workshops that need advanced vehicle diagnostics, ECU coding, active testing and service functions in one powerful tool.

Equipped with the LAUNCH DBScar VII VCI, the PRO3 APEX supports modern CAN FD and DoIP communication, helping it communicate with newer vehicles and electronic control systems. It provides full-system diagnostics, live data, bi-directional/active tests, ECU coding, component matching, guided functions and a comprehensive range of service and reset functions.

With 2 years of free online software updates, the PRO3 APEX is designed to keep your diagnostic coverage current as vehicle technology continues to develop.

Key Features

Full-System OE-Level Diagnostics

Access available electronic control units across the vehicle to:

• Read and clear diagnostic trouble codes (DTCs)
• View ECU information and system status
• Display live data in real time
• View data in graph and text formats
• Perform active tests / bi-directional controls
• Carry out adaptations, relearns and calibrations
• Perform ECU coding and component matching
• Generate diagnostic reports

The exact functions available depend on the vehicle’s make, model, year, ECU and software coverage.

Advanced ECU Coding

The PRO3 APEX provides advanced coding and configuration functions for supported vehicles.

Use ECU coding to help:

• Match and initialise replacement modules
• Carry out supported ECU adaptations
• Configure replacement components
• Change supported vehicle configuration settings
• Activate supported manufacturer-installed functions
• Perform supported online and offline coding procedures

Important: ECU coding and programming functions vary by vehicle. Some operations may require manufacturer access, an online account, subscription or additional licence.

Bi-Directional / Active Testing

The PRO3 APEX can communicate with supported vehicle modules and perform active tests, allowing technicians to command components and observe their operation.

Depending on the vehicle, examples may include testing:

• Engine components
• Cooling fans
• Fuel systems
• Injectors
• Windows
• Door locks
• Lights
• Air-conditioning components
• Pumps and actuators
• Other electronically controlled components

This can help technicians diagnose whether a component, wiring circuit or control module is responsible for a fault.

Topology Mapping

The built-in Topology Mapping function provides a visual overview of the vehicle’s electronic control units and communication network.

The topology display can help technicians:

• Identify connected control modules
• See communication relationships
• Locate modules reporting faults
• Navigate directly to relevant systems
• Understand the vehicle’s electronic architecture more quickly

37+ Service & Maintenance Functions

The PRO3 APEX includes 37+ dedicated service functions, with additional functions available through individual vehicle systems depending on coverage.

Common functions include:

• Oil Service Reset
• Electronic Parking Brake (EPB) Reset
• Battery Registration / BMS Reset
• Steering Angle Sensor (SAS) Reset
• ABS Bleeding
• Throttle Body Relearn
• Injector Coding
• DPF Regeneration
• TPMS Functions
• Gearbox / Transmission Adaptation
• Air Suspension Calibration
• Coolant Bleeding
• Window Calibration
• Start/Stop System Reset
• AdBlue / SCR-related functions on supported vehicles
• NOx sensor-related functions on supported vehicles
• GPF-related functions on supported vehicles
• Crankshaft Position Adaptation
• Clutch Matching
• Turbocharger Matching
• FRM-related service functions

The availability of individual functions depends on the vehicle and its ECU configuration.

VAG Guided Functions

For supported Volkswagen, Audi, SEAT and Škoda vehicles, the PRO3 APEX offers Guided Functions designed to provide step-by-step assistance for selected diagnostic, adaptation, calibration and coding procedures.

This can simplify more complicated procedures by providing relevant instructions and diagnostic information directly through the tablet.

CAN FD & DoIP

The included DBScar VII VCI supports modern vehicle communication protocols including:

• CAN FD
• DoIP (Diagnostics over Internet Protocol)
• Bluetooth communication
• USB connection

CAN FD and DoIP support allows the PRO3 APEX to work with newer vehicle platforms that use these communication technologies.

Auto VIN

Automatic VIN identification can quickly identify a supported vehicle and help technicians enter the correct diagnostic software without manually selecting the vehicle information.

FCA Security Gateway Access

The PRO3 APEX supports diagnostic access to supported FCA vehicles equipped with a Security Gateway system.

This can allow supported diagnostic operations such as DTC reading/clearing, active tests, calibrations and other service functions.

Vehicle compatibility and online access requirements apply.

Expandable Diagnostic Platform

The PRO3 APEX can be expanded with selected LAUNCH accessories and modules, allowing workshops to extend its capabilities.

Optional solutions may include:

• TPMS tools
• Battery testing
• Oscilloscope functions
• Videoscope / inspection camera
• Immobiliser and key programming using compatible LAUNCH equipment
• Heavy-duty truck diagnostics using compatible LAUNCH hardware and software
• ADAS calibration solutions

Optional accessories/modules are not included unless specifically stated in the package contents.

Hardware Specifications

Specifications are based on available LAUNCH product documentation and may vary slightly by software version or regional product configuration.

What’s Included

The PRO3 APEX package includes the diagnostic tablet and LAUNCH DBScar VII diagnostic VCI, together with the relevant diagnostic cable, USB/Type-C cable, power/charging accessories and supplied vehicle adapter accessories.

Please check the package contents before ordering if you require specific OBD1 adapters, as adapter bundles can vary by package.

Ideal For

The LAUNCH X-431 PRO3 APEX is suitable for:

• Independent automotive workshops
• Professional mechanics
• Vehicle diagnostic specialists
• Mobile mechanics
• Auto electricians
• Automotive technicians
• Garages carrying out ECU replacement and coding
• Workshops requiring bi-directional diagnostics
• Technicians working on modern European, Asian and American vehicles

Why Choose the X-431 PRO3 APEX?

The PRO3 APEX combines advanced diagnostics with workshop-focused functions in a single professional tablet.

Key advantages include:

✓ Full-system vehicle diagnostics
✓ Bi-directional / active testing
✓ Advanced ECU coding
✓ Component matching
✓ Topology Mapping
✓ 37+ service and reset functions
✓ VAG Guided Functions
✓ CAN FD support
✓ DoIP support
✓ FCA Security Gateway access on supported vehicles
✓ Automatic VIN identification
✓ 10.1-inch touchscreen
✓ 4 GB RAM + 64 GB storage
✓ 6300 mAh battery
✓ DBScar VII wireless VCI
✓ 2 years free online software updates
✓ Expandable with additional LAUNCH diagnostic equipment

Software Updates

2 years of free online updates are included.

Updates provide access to newer vehicle coverage, diagnostic functions and software improvements released for the supported vehicle database.

After the included update period, further software updates may be available as a paid renewal. Update availability, pricing and supported functions are subject to LAUNCH software terms.

Vehicle Coverage

The X-431 PRO3 APEX supports a wide range of European, Asian and American vehicles. Coverage includes many major manufacturers, but diagnostic functions are not identical across every vehicle.

Before carrying out a specific operation such as ECU coding, programming, key/immobiliser work or security-gateway access, we recommend checking the exact make, model, year, engine and ECU for compatibility.

Important Information

Professional diagnostic equipment: The PRO3 APEX is an advanced diagnostic tool intended for use by trained technicians.

Function availability: Diagnostic, coding, reset, active-test and programming functions vary according to vehicle make, model, year, ECU and software version.

Online functions: Certain manufacturer-specific functions may require internet access, manufacturer authentication, an online account, subscription or additional licence.

Programming: ECU programming/flashing is not automatically available for every vehicle. Do not assume that the presence of ECU coding on the tool means that every vehicle supports ECU programming.

Additional equipment: TPMS, heavy-duty, ADAS, immobiliser/key programming, oscilloscope, battery testing and other extended functions may require additional LAUNCH hardware, software or licences.

LAUNCH X-431 PRO3 APEX — Professional Diagnostics for Modern Workshops

From routine servicing and fault-code diagnosis to live data, active testing, ECU coding and advanced service functions, the X-431 PRO3 APEX provides a powerful diagnostic platform for workshops working with modern vehicles.

2 Year Free Online Updates.
1 Year warranty and after warranty service available.
Price Inc. VAT and Postage (VAT Receipts Available)