1. Rhagymadrodd
The LAUNCH X431 PRO3S+ V5.0 is an advanced automotive diagnostic scan tool designed for comprehensive vehicle analysis and maintenance. This device offers a wide range of functions including full system diagnostics, ECU coding, bidirectional control, and specialized service functions, supporting a broad spectrum of vehicle models and protocols.

Image 1.1: LAUNCH X431 PRO3S+ V5.0 main unit, VCI connector, and protective case.
2. Cynnwys Pecyn
Gwiriwch fod yr holl eitemau yn bresennol yn y pecyn:
- 1x LAUNCH X431 Pro3S+ V5.0 Main Unit (Tablet)
- 1x DBSCAR VII Connector (VCI)
- 1x HD15M to OBDII 16 Adaptor
- 1x Type A to Type C USB Data Cable
- 1x Power Adapter (with US/UK/EU Plugs)
- Canllaw Cychwyn Cyflym 1x
- Llawlyfr Defnyddiwr 1x
- 1x PIN Envelope
- 1x Inventory List

Delwedd 2.1: Cefn view of the LAUNCH X431 PRO3S+ V5.0 tablet and DBSCAR VII VCI.
3. Gosod a Defnydd Cychwynnol
3.1 Troi Ymlaen a Chyflunio Cychwynnol
- Gwefru'r Dyfais: Connect the power adapter to the tablet and a power outlet. Ensure the device is fully charged before first use.
- Pŵer Ymlaen: Pwyswch a daliwch y botwm pŵer nes bod y sgrin yn goleuo.
- Dewis Iaith: Dilynwch yr awgrymiadau ar y sgrin i ddewis eich iaith ddewisol.
- Cysylltiad Wi-Fi: Connect the device to a stable Wi-Fi network for software updates and online functions.
- Diweddariad Meddalwedd: Navigate to the 'Software Update' section and download any available updates to ensure optimal performance and the latest vehicle coverage.
3.2 Cysylltu â Cherbyd
- Lleoli Porthladd OBD-II: Identify the vehicle's OBD-II diagnostic port, typically located under the dashboard on the driver's side.
- Cysylltu VCI: Plug the DBSCAR VII connector into the vehicle's OBD-II port. The VCI indicator lights should illuminate.
- Pair VCI: On the X431 PRO3S+ V5.0 tablet, ensure Bluetooth is enabled. The tablet will automatically attempt to pair with the DBSCAR VII connector. Confirm the connection when prompted.
- Trowch y Tanio Ymlaen: Switch the vehicle's ignition to the 'ON' position (engine off).
4. Gweithrediadau Sylfaenol
4.1 Adnabod Cerbyd
The X431 PRO3S+ V5.0 offers multiple methods for vehicle identification:
- Auto-VIN Scan: Automatically identifies vehicle information (Brand, Year, Make, Model) for most 2006+ vehicles.
- Camera VIN Scan: Use the integrated camera to scan the vehicle's VIN.
- Mewnbwn â llaw: Enter the VIN manually.
- Dewis â llaw: Select vehicle details from a comprehensive menu.
4.2 Diagnosteg System Llawn
After vehicle identification, select 'Diagnose' to perform a full system scan. The tool will automatically scan all available electronic control units (ECUs) for diagnostic trouble codes (DTCs) and display live data.
- Darllen/Clirio DTCs: View and clear diagnostic trouble codes from all systems.
- Gwybodaeth ECU: Retrieve detailed information about each ECU.
- Llif Data Byw: Display real-time data parameters in text or graph format. The tool supports 12-in-1 PID graphing for simultaneous monitoring.

Image 4.1: User interface showing various diagnostic and reporting features.
5. Advanced Diagnostic Functions
5.1 Mapio Topoleg
The Topology Mapping feature provides a visual representation of the vehicle's module structure and communication network. Modules are color-coded to indicate their status (Normal, Abnormal, Scanned, Not Scanned, Not Equipped), allowing for quick identification of problematic areas.

Delwedd 5.1: Enghraifftample of a topology map on the X431 PRO3S+ V5.0 screen.
5.2 Codio ECU
ECU Coding allows for modification of pre-programmed options within the vehicle's software. This includes:
- Codio Ar-lein: Connects to OEM servers for data when code data is lost (compatible with VW/Audi/Skoda/Ford/Lincoln/Mazda).
- Variant/Offline Coding: Adapts ECUs for different vehicle configurations (e.g., left-hand/right-hand drive, activating/deactivating software functions).
- Cyfatebu Cydrannau: Establishes communication between new ECU modules and existing systems after replacement.
- Flash Hidden Functions: Activates advanced features or disables certain functions (e.g., mirror automatic folding, disabling auto start-stop).
- Customize OE-Settings: Modifies original vehicle behavior (e.g., upgrading fog lamps, battery capacity changes).
- Swyddogaeth PMI: Allows copying data from an original module to a new unit for module replacement (for Ford/Lincoln/Mazda).

Delwedd 5.2: Drosoddview of ECU Coding capabilities.
5.3 Service Functions (55+)
The tool provides over 55 specialized service functions for routine maintenance and repairs. These include, but are not limited to:
- Ailosod Olew
- Ailosod Brêc (EPB)
- Gwaedu ABS
- SAS Calibration (Steering Angle Sensor)
- Battery Matching (BMS)
- Ailosod TPMS
- Adfywio DPF
- Codio Chwistrellydd
- Addasiad Throttle
- Crank Position Sensor Adaptive Learn
- Cylinder Power Balance Test
- Calibradiad Ataliad

Delwedd 5.3: Enghraifftamples of service functions and bidirectional control.
5.4 Rheolaeth Dwyffordd (Profion Gweithredol)
Bidirectional control allows the tool to send commands to vehicle ECUs to perform specific tests on actuators. This helps in quickly pinpointing faulty components without disassembly. Exampmae llai yn cynnwys:
- Profion EVAP
- Fuel Injector Test
- Cooling Fan Test
- Operating Windows/Doors
- A/C Compressor Activation
- Wipers Test
5.5 Vehicle Coverage and Protocols
The X431 PRO3S+ V5.0 supports over 200 global brands and 200,000+ models from 1984-2025. Key protocol support includes:
- CAN FD: Compatible with 2019+ GM & Chrysler new models, offering faster data transfer.
- DOIP: Supports Volvo (2018+), Land Rover & Jaguar (2017+), BMW F&G chassis (requires adapter).
- Awdurdodiad Auto FCA: Provides secure access to 2017+ FCA vehicles (Chrysler, Jeep, Dodge, Fiat) for diagnostics and maintenance (AutoAuth account purchased separately).
- HD Trucks & NEVs: Optional support for 24V heavy-duty trucks and New Energy Vehicles with additional modules.

Image 5.4: Extensive vehicle coverage and protocol support.
6. Data Management and Reporting
6.1 Llif Data Byw
Monitor up to 12 data parameters simultaneously in graph format. Data can be recorded, played back, and exported as CSV or PDF files for detailed analysis.
6.2 Pre & Post Scan Reports
Generate detailed reports documenting vehicle conditions before and after repairs. These reports help verify that all issues have been resolved and can be shared or printed.
6.3 Hanes Diagnostig
The tool automatically records all diagnostic processes, allowing quick access to previously tested vehicles and resuming operations without starting from scratch.
7. Connectivity and Expansion
7.1 Remote Diagnostics
Connect with remote experts for assistance with complex vehicle issues. This feature allows for diagnostics of vehicles located remotely.
7.2 Extension Modules
The X431 PRO3S+ V5.0 supports integration with various optional add-on modules (sold separately) to expand its functionality:
- X431 Smartlink C: For heavy-duty truck diagnostics.
- NEV Detection Expansion Package: For New Energy Vehicle diagnostics.
- i-TPMS: For TPMS sensor programming and activation.
- BST360 Battery Tester: For battery health, starting, and charging system tests.
- Videoscope (VSP600): For inspecting inaccessible areas.
- ADAS Calibration: For calibrating Advanced Driver Assistance Systems.
- O2-2 Oscilloscope: For circuit signal acquisition and waveform display.
- X-PROG3: For engine and gearbox programming.

Image 7.1: Available extension modules for the X431 PRO3S+ V5.0.
8. cynnal
8.1 Diweddariadau Meddalwedd
Regularly update the software to ensure the latest vehicle coverage, bug fixes, and new functions. The device provides 2 years of free updates. After this period, the device remains functional, but new updates will require a subscription.
8.2 Gofal Cyffredinol
- Cadwch y ddyfais yn lân ac yn rhydd o lwch a lleithder.
- Osgowch ollwng y ddyfais neu ei hamlygu i dymheredd eithafol.
- Storiwch y ddyfais yn ei chas amddiffynnol pan nad yw'n cael ei defnyddio.
9. Datrys Problemau
Am broblemau cyffredin, cyfeiriwch at y canlynol:
- Dyfais ddim yn pweru ar: Gwnewch yn siŵr bod y batri wedi'i wefru. Cysylltwch yr addasydd pŵer a cheisiwch eto.
- VCI not connecting: Verify the VCI is securely plugged into the OBD-II port and the vehicle's ignition is on. Check Bluetooth settings on the tablet.
- Software freezing/crashing: Restart the device. Ensure the software is up to date.
- Incompatible models or abnormal functions: Use the 'Online Diagnostic Feedback' feature to submit detailed descriptions to the LAUNCH team for analysis.
10. manylebau
| Nodwedd | Manyleb |
|---|---|
| System Weithredu | Android 10.0 |
| Prosesydd | 2.0 GHz 4-Core CPU |
| Arddangos | 10.1-inch LCD Touchscreen (1280 x 800 resolution) |
| Cof (RAM) | 4GB |
| Storio (ROM) | 64GB |
| Batri | 6300mAh Lithium Ion (up to 12+ hours operation) |
| Cysylltedd | 2.4GHz & 5GHz Dual-band WiFi, Bluetooth |
| Camera | Camera Cefn 8MP |
| Cysylltydd VCI | DBSCAR VII (supports CAN FD) |
| Dimensiynau | 15"H x 12.5"L x 17"U |
| Pwysau | 15.97 pwys |

Image 10.1: Hardware specifications of the X431 PRO3S+ V5.0.
11. Gwarant a Chefnogaeth
11.1 Gwybodaeth Gwarant
The product comes with a 5-year warranty. For accessory replacements (e.g., USB charging cable, BT connector) within this period, contact customer support.
11.2 Diweddariadau Meddalwedd
Enjoy 2 years of free software updates. After this period, the device will continue to function with the last updated version, but further updates will require a renewal subscription.
11.3 Cefnogaeth i Gwsmeriaid
For any questions, technical assistance, or warranty claims, please contact customer support via email: obdbox21@163.com.