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48
monitor status prior to emissions certification testing, verify repairs, and perform a
number of other services that are emissions-related. The OBD direct access option is
also used for testing OBDII/EOBD compliant vehicles that are not included in the
Diagnostics database.
Functions of the diagnostics toolbar buttons at the top of the screen are the same as
those available for specific vehicle diagnostics. See
Table 4-2 Diagnostics Toolbar
Buttons for details.
General Procedure
To access the OBDII/EOBD diagnostics functions
Tap the Diagnostics application from the MaxiCOM Job Menu. The Vehicle
Menu displays.
Tap the EOBD button. There are two options to establish communication with
the vehicle.
Auto Scan — when this option is selected the diagnostic tool attempts to
establish communication using each protocol in order to determine which one
the vehicle is broadcasting on.
Protocol — when this option is selected the screen opens a submenu of
various protocols. A communication protocol is a standardized way of data
communication between an ECM and a diagnostic tool. Global OBD may use
several different communication protocols.
Select a specific protocol under the Protocol option. Wait for the OBDII
Diagnostic Menu to appear.
Figure 4-18 OBDII Diagnostic Menu
Select a function option to continue.
DTC & FFD
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