Special Function; How To View History; Electronic Throttle Position Reset/Learn; Repair Data - LAUNCH TECH X-431 PRO3 User Manual

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Record: Tap to start recording diagnostic data for future playback and analysis.
The saved file follows the naming rule: It begins with vehicle type, and then the
record starting time and ends with .x431 (To differentiate between files, please
configure the accurate system time). The file is stored in "My Report" under
"Profile" menu. For details on playback operations, please refer to Chapter
4.10.4 "My Report".
To stop reading the data stream, tap
Print: Tap to print the content of current screen. An additional Wi-Fi printer is
required.
Help: Tap to view the help information.
If more than one page of data stream items is displayed, an icon similar to 1/4
appears. Swipe the screen from right to left to switch to the next page.

4.5.4 Special function

This option allows you to detect whether the system parameters are normal or
not. It mainly includes: Injector test, fuel pump test, purge control solenoid and
so on.

4.5.5 How to view History?

Generally once a vehicle diagnosis is performed, X-431 PRO3 will record the
every details of diagnostic process. The History function provides a quick access
to the tested vehicles and users can resume from the last operation, without the
necessity of starting from scratch.
1. Tap "History", all diagnostic records will be listed on the screen in date
sequence.
Where the box with light blue background indicates that no DTCs are found on
this vehicle and the light yellow box indicates that the vehicle has DTCs.
2. Tap a certain box to enter the history records.
3. Tap "Restore" to directly jump to the system selection screen.
4. Tap the desired system to enter and follow the instructions on the screen to
proceed.

4.5.6 Electronic throttle position reset/learn

This function enables you to make initial settings to throttle actuators and returns
the "learned" values stored on ECU to the default state. Doing so can accurately
control the actions of regulating throttle (or idle engine) to adjust the amount of
air intake.

4.6 Repair Data

This option provides abundant repair case and automotive technology handbook
for your reference.
X-431 PRO3 User's Manual — Vehicle Diagnosis
before the recording progress bar.
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