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Figure 4-16 Sample of the Actuation Test
This function allows the device to send information to and receive
information from, vehicle control modules. For example, in the case of
OBD II generic information Mode 1 (which relates to data parameters),
the scan tool user initiates a request for information from the powertrain
control module (PCM), and the PCM responds by sending the
information back to the scan tool for display. Most enhanced scan tools
also can actuate relays, injectors and coils, perform system tests, etc.
Users could check the individual part to see what is working properly by
actuation test.
Freeze Frame
