User Manual

LAUNCH X-431 V+ V4.0 User Manual

comparison of the pre- and post- repair reports, you can easily identify which

DTCs are cleared and which remain unfixed.

• Post indicates DTC status of post-repair.

• Pre indicates DTC status of pre-repair.

Note: Before performing this function, make sure you have met the following

conditions:

• You have saved a pre-repair report of the currently tested vehicle, and

• You have already made some repairs and service and cleared the DTCs after the

pre-repair reported is generated. Otherwise, no differences exist between the pre-

and post- repair reports.

Clear DTCs:

Tap to clear the existing diagnostic trouble codes.

Note: Clearing DTCs does not fix the problem(s) that caused the code(s) to be set.

If proper repairs to correct the problem that caused the code(s) to be set are not made,

the code(s) will appear again and the check engine light will illuminate as soon as the

problem that cause the DTC to set manifests itself.

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 process is complete, the following screen will

appear.