LAUNCH TECH X-431 PRO V4.0 User Manual page 39

X-431 PRO V4.0 User Manual
LAUNCH
Fig. 4-27
Help: Tap to view the help information.
E. Actuation Test
This option is used to access vehicle-specific subsystem and component tests.
Available test vary by vehicle manufacturer, year, and model.
During the actuation test, the handset outputs commands to the ECU in order to
drive the actuators, and then determines the integrity of the system or parts by
reading the ECU data, or by monitoring the operation of the actuators, such as
switching a injector between two operating states.
In Fig. 4-21, tap "Actuation Test". Simply follow the on-screen instructions and
make appropriate selections to complete the test. Each time when an operation
is successfully executed, "Completed" displays.
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