User Guide

LAUNCH X-431 V User Manual — Vehicle Diagnosis
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vehicle’s control system.
Tap “Read DTC” in function menu, the screen will display the diagnostic result.
Fig. 4-16
On-screen Buttons:
New Session:
Tap it to return to the home screen.
Search:
Highlight a certain DTC item, and then tap it to search the definition
of the selected DTC online.
Report:
To save the current diagnostic data.
All reports are saved under the
tab “Diagnostic Report” in “My Report” from “Profile” menu. For details on report
operations, please refer to Chapter 4.7.4 “My Report”.
Freeze Frame:
When an emission-related fault occurs, certain vehicle conditions
are recorded by the on-board computer
. This information is referred to as freeze
frame data. Freeze frame data includes a snapshot of critical parameter
values at the time the DTC is set.
Help:
Tap it to view the help information.
4.5.2 Clear fault memory
After reading the retrieved codes from the vehicle and certain repairs have been
carried out, you can use this function to erase the codes from the vehicle. Before
performing this function, please be sure the vehicle’s ignition key is in the ON
position with the engine off.
Tap “Clear fault memory” in function menu, the system will automatically delete
the currently existing trouble code.
Note:
The trouble code will not disappear until the trouble was completely cleared.