Launch X-431 SmartLink C HD LITE V2 is a new commercial vehicle diagnostic expansion package equipped with the upgraded SmartLink C V4 technology. Compared with the previous SmartLink C V2, it offers a smaller design, improved hardware performance, and enhanced diagnostic capabilities. It is compatible with X-431 PRO V5.0, X-431 PROS V5.0, X-431 PRO TT, X-431 PRO DYNO, and other 8-inch supported diagnostic tools.

Hardware Performance Upgrade
SmartLink C HD LITE V2 has received a complete hardware improvement to provide faster and more stable diagnostic performance.
The processor has been upgraded from a single-core CPU to a dual-core CPU with a frequency of up to 1.7 GHz. The RAM capacity has increased from 256 MB to 1 GB, improving calculation speed and reducing response time during diagnostic operations.
The CAN communication system has also been upgraded to 4-channel CAN FD, providing higher bandwidth and faster data transmission. This allows the adapter to support the diagnostic requirements of more modern commercial vehicles.
SmartLink C V2 vs. SmartLink C V4
| Product | SmartLink C V2 | SmartLink C V4 |
| CPU | Single-core 528MHz | dual-core 1.7G |
| Working Voltage | DC 9V ~ 36V | DC 8V ~ 36V |
| Screen | 3.95 inches, 320*480 | 5 inches, 1280*720 |
| RAM | 256M | 1G |
| Storage | 8G | 8G |
| Communication | Local Diagnosis: WIFI/BT/USB | Local Diagnosis: WIFI/BT/USB |
| SmartLink Remote Diagnosis: Wi‑Fi / Wired | SmartLink Remote Diagnosis: Wi‑Fi / Wired | |
| WIFI | WIFI 5 | WIFI 6 |
| Bluetooth | BT4.2 | BT5.0 |
| I/O | DB15 male, USB-B, RJ45, DC IN | DB15 female, USB-B, RJ45, DC IN |
| Working Tenperature | 0℃ ~ 50℃ | 0℃ ~ 50℃ |
| Size | 200*47*110mm | 187.6*32.8*106mm |
| Weight | 0.55kg | 0.35kg |
Enhanced Diagnostic Functions
- Visual Diagnostic Display
X-431 SmartLink C HD LITE V2 supports graphical displays for special functions, topology diagrams, and live data streams. Vehicle data trends can be viewed more clearly, helping technicians locate faults faster and reduce manual data analysis.
- Faster Vehicle Scanning
With multi-channel synchronous scanning technology, the device can process multiple diagnostic tasks at the same time. Compared with traditional single-channel scanning, it improves diagnostic efficiency and reduces repair time.
- AI Fault Repair
The built-in AI fault repair function helps identify fault locations and provides targeted repair suggestions based on diagnostic results.

Key Features
Advanced Data Stream Display
Supports multiple data stream display modes and allows users to customize standard data stream settings for easier vehicle analysis.

Graphical Special Functions
- Dynamic vehicle data can be displayed visually for various functions, including:
- DPF regeneration
- APS system
- Urea injection system
- Cylinder cut-off detection
- Injector coding
- Suspension system
- Clutch system
- And more

Common Special Functions
The device supports many frequently used special functions, including:
- DPF regeneration
- Parameter settings
- Cylinder cut-off compression test
- Service reset
- Injector programming
- Speed limit adjustment
- Idle speed adjustment
- Fan calibration
- Remote throttle control
- Urea injection activation
- Deep DTC clearing
- Transmission adaptation
- NOx sensor functions
More functions will continue to be added through updates.

X431 SmartLink C HD LITE V2 provides faster communication, smarter diagnostics, and improved support for commercial vehicle repair professionals.







