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OBD Direct Operations OBD Diagnose
($08) Request Control of On-board System
This service enables bidirectional control of the ECM, that is the Scanner transmits control
commands to operate the vehicle system. This function is useful in determining how well the ECM
responds to a command.
Available options vary by make, model, and year of the test vehicle. Select a test and follow the
on-screen instructions.
($09) Read Vehicle Identification
This selection displays the vehicle identification number (VIN), the calibration identification, and
the calibration verification number (CVN) of the test vehicle.
($09) In-use Performance Tracking
This selection displays the “In-use Performance Tracking” of monitored data. It is basically a
record of the number of times each of the monitor tests have been completed.
6.2.2 Select Communication Protocol
A communication protocol is a standardized way of data communication between an ECM and a
scan tool. Global OBD may use several different communication protocols.
Touch Select Communication Protocol to open a menu of options (
Figure 6-7).
Figure 6-7 Sample communication protocol menu
When the All Protocols setting is used the Scanner attempts to establish communication using
each protocol on order to determine which one the vehicle is broadcasting on.
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