LAUNCH    X-431 PRO Series User Manual 
11 
5 Diagnosis 
5.1 Intelligent Diagnosis 
Through simple Bluetooth communication between the display tablet and VCI, 
you can easily get the  VIN (Vehicle  Identification Number) information of  the 
currently identified vehicle. Once the VIN is successfully identified, the system 
will retrieve it from the remote server and then guide you to vehicle information 
page without the necessity of step-by-step manual menu selection.   
The vehicle information page lists all historical diagnostic records of the vehicle, 
which lets the technician have a total command of the vehicle faults. In addition, 
a quick dial to local diagnosis and diagnostic function are also available on this 
page for reducing the roundabout time and increasing productivity. 
Notes:   
• 
Before using this function, please make sure the VCI is properly connected to the 
vehicle’s DLC. For detailed connection, see Chapter 4.3.3 “Vehicle Connection”.
 
• 
A stable network connection is required for this function.
 
Follow the steps below to proceed. 
1.  Tap “Intelligent Diagnosis” on the Job menu screen to enter Fig. 5-1.