X-431 EURO PRO 5 Link

Professional Diagnosis with SRD function

X-431 EURO PRO5 LINK, based on Android 9 system, is a new high-end vehicle diagnostic device developed by LAUNCH. It passes on LAUNCH’s advantages in diagnostic technology, such as wide car model coverage, powerful test function, abundant special functions and accurate test data. Integrated with Guided Diagnosis function based on LAUNCH electronic database, powered by HaynesPro.

Smartlink C is equipped as Local Diagnosis VCI, supported with LAUNCH super remote diagnosis system, DoIP, PassThru, HD truck. Supports both 2.4GHz and 5GHz Wi-Fi.

Also X-431 EURO PRO5 LINK has a more user-friendly high quality industrial design for better protection.

Service Functions

  • CarSET database
  • Battery reset
  • Oil change service
  • Throttle valve reset
  • Steering angle sensor calibration
  • Injector coding
  • Crankshaft position sensor reset
  • Adaptive headlights
  • ADAS function (Advanced Driver Assistance Systems)
  • Sunroof
  • Electrical parking brake reset
  • EGR reset (Exhaust gas recirculation)
  • Tyre pressure monitoring system
  • Diesel particulate filter reset
  • Brake bleeding


  • Comprehensive diagnostic functions for all systems
  • Diagnostic software covers 77 car brands worldwide
  • Live Data Stream with standard value
  • Powerful reset and service functions
  • Diagnosis for trucks with additional HD module
  • One-click update online via Wi-Fi
  • Smart design for the convenient placing with Docking station
  • Integrated search function simplifies the daily work
  • Remote diagnosis function

Tech Specs

Android 9.1

1.8 GHz 8 Cores

10.1” IPS FullHD (1.920 x 1.200)


64GB, support SD card up to 32 GB


Wi-Fi Printer (optional)

Wi-Fi 2.4 GHz/ 5 GHz

Front 5.0 MP, Back 8 MP

7,000 mAh

265 x 210 x 30 mm (LxWxH)



LAUNCH SRDs is comprised with SmartLink C, SmartLink B and Cloud Platform. The SmarLink C can be connected to the vehicle, and the SmartLink B can be connected with any diagnostic device. The remote diagnosis will be carried out on the Smartlink platform.


SmartLink C


  • Local Diagnosis VCI
  • Remote Diagnosis VCI (LAUNCH SRDs)
  • Compatible with DoIP
  • Pass-Thru VCI
  • J2534
  • D-PDU
  • RP-1210
  • Support both passenger car and HD vehicles

Business Solution

The Launch dealer or service provider can provide the SmartLink C or Launch diagnosis tool EURO PRO5 LINK to his clients.  The clients can use the Smartlink C to initiate the remote diagnosis requests to SmartLink B owned by service provider, and start the service remotely.

If the service provider is not fit to the request, he can still forward the request free to other Smartlink B colleagues.


Pass-Thru device has standard API (application programming interface) that can be adopted by all car manufacturers,  this interface standard is issued by SAE (Institute of Automotive Engineers) and authorized by the US Environmental Protection Agency (EPA) for automotive ECU reprogramming. The goal is to allow the independent aftermarket (IAM) to reprogram the ECU without the need for a special dealer-only tool.

Since the introduction of OBDII and leading up to modern Hybrids and EV’s, computers and software in cars have been expanding at an exponential rate. In-car software is becoming one of the leading needs for service, and updating software may be the only way to fix some of these issues: drivability, fuel efficiency, power loss, fault codes, and durability of mechanical parts.

PassThru Connection

Smartlink C can be used as Pass-Thru device to reprogram ECU. The use of Pass-Thru functions requires users to install the Smartlink C driver on laptop. This driver is used to do the settings for Smartlink C. After that, users can purchase the reprogramming software from OEM‘s website and install the OE software on laptop. Smartlink C can connect the vehicle and OE software (laptop).