LAUNCH         X-431 V V4.0 User Manual 
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5.2.2 System Scan 
This  option  allows  you  to  quickly  scan  which  systems  are  installed  on  the 
vehicle. 
On the test item selection screen, tap “System Scan”, the system start scanning 
the systems. Once the scanning is complete, the screen will display the result.   
 
Tap  the  desired  system  to  advance  to  the  test  function  selection  page.  For 
detailed operations on test function, please refer to Chapter 5.2.3.   
5.2.3 System Selection 
This option allows you manually select the test system and function step by step. 
On the test item selection screen, tap “System Selection”, the following screen 
will appear: