LAUNCH LAUNCH X431 PRO3S+
LAUNCH X431 PRO3S+ V5.0 OBD2 Diagnostic Scanner User Manual
Model: LAUNCH X431 PRO3S+
Брэнд: LAUNCH
1. Танилцуулга
The LAUNCH X431 PRO3S+ V5.0 is a professional-grade OBD2 diagnostic scanner designed for comprehensive vehicle diagnostics and maintenance. This device offers OE-level full system scanning, advanced ECU coding capabilities, bidirectional control, and over 55 specialized reset services. It is built for technicians, workshops, and advanced DIY users seeking efficient and accurate vehicle analysis.

Figure 1.1: LAUNCH X431 PRO3S+ V5.0 Diagnostic Scanner and included accessories.
2. Тохиргоо
2.1 Хайрцагнаас задлах, анхны үзлэг
Upon receiving your LAUNCH X431 PRO3S+ V5.0, carefully open the packaging and inspect all components for any signs of damage. The standard package typically includes:
- LAUNCH X431 PRO3S+ V5.0 Tablet
- Smartlink HD VCI (Vehicle Communication Interface)
- OBD2 оношлогооны кабель
- Various OBD Adapters (for different vehicle types)
- Цахилгаан адаптер болон цэнэглэгч кабель
- Хэрэглэгчийн гарын авлага (энэ баримт бичиг)
- Зөөврийн цүнх
2.2 Асаалт ба анхны тохиргоо
- Ensure the tablet is sufficiently charged. Connect the power adapter to the tablet and a power outlet if the battery is low. The device features a 6300mAh battery for extended use.
- Таблетыг асаахын тулд асаах товчийг дараад барина уу.
- Follow the on-screen prompts to complete the initial setup, including language selection (English is supported), Wi-Fi connection, and time zone settings.
- Connect the Smartlink HD VCI to the tablet via Bluetooth. Ensure both devices are powered on and within range. The device supports Bluetooth 5.0 for stable connection.
2.3 Програм хангамжийн шинэчлэлтүүд
It is highly recommended to update the diagnostic software to the latest version upon initial setup to ensure compatibility with the newest vehicle models and access to the most recent features. Your device includes 2 years of free software updates.
- Connect the tablet to a stable Wi-Fi network (supports 2.4GHz and 5GHz dual-band).
- Navigate to the 'Software Update' section within the device's main menu.
- Download and install all available updates. This process may take some time depending on your internet speed and the size of the updates.
2.4 Тээврийн хэрэгсэлд холбогдох
To begin diagnostics, connect the Smartlink HD VCI to the vehicle's OBD2 port, typically located under the dashboard on the driver's side. Then, connect the VCI to the tablet wirelessly via Bluetooth.
3. Ашиглалтын заавар
3.1 Системийн навигаци
The LAUNCH X431 PRO3S+ V5.0 operates on Android 10.0 with a 10.1-inch touchscreen display, providing an intuitive user interface. Navigate through menus by tapping icons and swiping the screen. The main interface provides quick access to diagnostic functions, software updates, and settings.

Figure 3.1: Simple and intuitive interface for easy operation.
3.2 All System Diagnostics with Topology Mapping
The device supports OE-level full system diagnostics, allowing you to read and clear fault codes, view live data, and retrieve ECU version information for all available vehicle systems, including Engine Control Module (ECM), Transmission Control Module (TCM), Anti-lock Braking System (ABS), Supplemental Restraint System (SRS), Body Control Module (BCM), Immobilizer (IMMO), Battery Management System (BMS), Tire Pressure Monitoring System (TPMS), Steering Angle Sensor (SAS), fuel system, lighting system, and air conditioning system.
нэгдсэн Topology Mapping function provides a visual representation of the vehicle's communication network, allowing for quick identification of system status and fault locations. This feature significantly enhances troubleshooting efficiency.

Figure 3.2: All System Diagnose with Topology Mapping for fast and effective troubleshooting.
3.3 ECU кодчилол ба дасан зохицох
The LAUNCH X431 PRO3S+ V5.0 offers advanced ECU coding capabilities to configure or reprogram electronic control units. This includes:
- Параметрийн тохируулга: Modify vehicle parameters to optimize performance or customize features.
- ECU Replacement: Program new ECUs after replacement.
- Дэвшилтэт тохируулга: Personalize vehicle settings.
- Activate Hidden Functions: Unlock features that are disabled by default.
- Ядаргаатай функцуудыг идэвхгүй болгох: Хүсээгүй функцүүдийг унтраа.
- Гүйцэтгэлийн сайжруулалт: Optimize engine and transmission performance.
- Офлайн кодчилол: Perform coding without an internet connection for certain vehicle models.

Figure 3.3: ECU Coding capabilities for configuring and reprogramming vehicle ECUs.
3.4 Хоёр чиглэлийн хяналт (идэвхтэй туршилтууд)
Perform active tests to send commands to vehicle systems and components, verifying their functionality without using the vehicle's controls. ExampҮүнд:
- Радиаторын сэнсийг асааж байна.
- Хийн тохируулагчийг тохируулах.
- Opening or closing windows.
- Ашиглалтын тольнууд.
- Injector buzz test.
- Sounding the horn.
- Хаалганы түгжээний идэвхжүүлэгчийг турших.

Figure 3.4: Bidirectional control allows sending commands to vehicle components for active testing.
3.5 55+ Дахин тохируулах функцууд
The device supports over 55 common maintenance and reset services, streamlining repair processes and ensuring optimal vehicle performance. Key functions include:
- Газрын тосыг дахин тохируулах
- ABS цус алдалт
- EPB (Цахим зогсоолын тоормос) дахин тохируулна
- SAS (Жолооны өнцгийн мэдрэгч)-ийг дахин тохируулах
- TPMS (Дугуйн даралт хянах систем) дахин тохируулна
- DPF (Дизель тоосонцор шүүлтүүр) нөхөн төлжилт
- BMS (Батерейны удирдлагын систем) дахин тохируулна уу
- Инжекторын кодчилол
- Тохируулагч дасан зохицох
- Gear Reset
- AFS (Дасан зохицох урд гэрэлтүүлгийн систем)-ийг дахин тохируулах
- EGR (Exhaust Gas Recirculation) Adaptation
- Хурдны хайрцгийг тааруулах
- Нарны дээврийг эхлүүлэх
- Түдгэлзүүлэлтийн тохиргоог дахин тохируулах

Figure 3.5: A selection of the 55+ reset functions available.
3.6 Нэмэлт шинж чанарууд
- Автомат VIN: Quickly identify vehicle information with one-click Auto VIN technology.
- Live Data Graph: Display live data streams in a 12-in-1 graphical format for easy analysis and comparison.
- Тээврийн хэрэгслийн хамрах хүрээ: Supports over 200 car brands and 20,000 vehicle models from 1986 to 2025, including support for FCA AutoAuth, CAN FD, and DoIP protocols.
- ADAS шалгалт тохируулга: Supports calibration for Advanced Driver-Assistance Systems (ADAS) with optional accessories.
- Heavy Duty Truck Compatibility: Supports 24V heavy duty and commercial vehicles with additional connectors.
4. Засвар үйлчилгээ
4.1 Програм хангамжийн шинэчлэлтүүд
Regularly check for and install software updates to ensure optimal performance, access to new features, and compatibility with the latest vehicle models. Updates are available for 2 years free of charge.
4.2 Батерейны арчилгаа
To prolong the life of the 6300mAh lithium-ion battery, avoid fully discharging it frequently. Charge the device when the battery level is low. If storing the device for an extended period, ensure it is charged to approximately 50-70%.
4.3 Цэвэрлэгээ ба хадгалах
Clean the tablet screen and body with a soft, lint-free cloth. Avoid using abrasive cleaners or solvents. Store the device in its protective carrying case in a cool, dry place away from direct sunlight and extreme temperatures.
5. Алдаа засах
This section addresses common issues you might encounter with your LAUNCH X431 PRO3S+ V5.0.
5.1 Төхөөрөмж асахгүй байна
- Батерей цэнэглэгдсэн эсэхийг шалгана уу. Цахилгаан адаптерийг холбоод дахин оролдоно уу.
- Press and hold the power button for at least 10 seconds to perform a hard reset.
5.2 VCI нь таблеттай холбогдоогүй байна
- Ensure both the tablet and VCI are powered on.
- Check Bluetooth settings on the tablet to ensure Bluetooth is enabled and the VCI is paired.
- Move the VCI closer to the tablet to ensure they are within Bluetooth range.
- Restart both the tablet and the VCI.
5.3 Unable to Connect to Vehicle OBD2 Port
- Ensure the vehicle's ignition is on (engine can be off or running, depending on the test).
- Verify that the OBD2 connector is securely plugged into the vehicle's port.
- Тээврийн хэрэгслийн зайны багтаамжийг шалгана ууtagд. Бага ботьtage can prevent communication.
- Ensure the correct diagnostic cable/adapter is being used for the specific vehicle model.
5.4 Software Update Errors
If you encounter errors during software updates, such as incomplete downloads or installation failures:
- Тогтвортой, хүчтэй Wi-Fi холболтыг хангах.
- Check available storage space on the tablet (64GB internal storage). Clear unnecessary fileшаардлагатай бол s.
- Restart the update process. If issues persist, contact LAUNCH technical support.
6. Техникийн үзүүлэлтүүд
| Онцлог | Тодорхойлолт |
|---|---|
| Загвар | LAUNCH X431 PRO3S+ V5.0 |
| Үйлдлийн систем | Android 10.0 |
| CPU | 1.8GHz Octa-core Processor |
| Дэлгэц | 10.1 инчийн мэдрэгчтэй дэлгэц |
| Санах ой | 4 ГБ RAM, 64 ГБ санах ой |
| Батерей | 6300mAh лити-ион |
| Холболт | 2.4GHz & 5GHz Dual-Band WiFi, Bluetooth 5.0 |
| Хэмжээ | 61.01 x 19 x 41 см (савласан) |
| Жин | 7.65 Kilograms (packaged) |
| Дэмжигдсэн протоколууд | OBD2, CAN FD, DoIP, FCA AutoAuth, DPU Protocols |
| Тээврийн хэрэгслийн хамрах хүрээ | 200+ Brands, 20000+ Models (1986-2025) |

Figure 6.1: Physical dimensions and compatible extension modules.
7. Баталгаат хугацаа ба дэмжлэг
7.1 Баталгаат хугацааны мэдээлэл
The LAUNCH X431 PRO3S+ V5.0 comes with a standard warranty as per the purchase agreement. Additionally, it includes 2 жилийн үнэгүй програм хангамжийн шинэчлэлтүүд from the date of activation, ensuring your device remains current with the latest vehicle data and diagnostic capabilities.
7.2 Техникийн дэмжлэг
For any technical assistance, operational queries, or troubleshooting beyond this manual, LAUNCH provides comprehensive technical support. You can access support through:
- Онлайн үйлчилгээ: The device offers 7/24 online service for real-time assistance.
- Diagnostic Tech Support/Feedback: Utilize the built-in feedback function on the device to report issues or request assistance.
- Maintenance Database & Repair Academy: Access a wealth of information, including DTC help and repair skills, directly from the device.
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