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If the process crashes, recheck all the cable connections to assure good
communications and reinitialize the flash procedure. The programming procedure will
automatically repeat if the previous operation does not succeed.
Generic OBD II Operations
A fast-access option for OBD II/EOBD vehicle diagnosis is available on the Vehicle
Menu screen. This option presents a quick way to check for DTCs, isolate the cause of
an illuminated malfunction indicator lamp (MIL), check 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 OBD II/EOBD
compliant vehicles that are not included in the Diagnostics database. Functions of the
diagnostics toolbar buttons at the top the screen are the same as those available for
specific vehicle diagnostics. See
Table 4-2 Diagnostics Toolbar Buttons
on page 27 for
details.
General Procedure
To access the OBD II/EOBD diagnostics functions
1. Tap the
Diagnostics
application button from the MaxiSys Job Menu. The
Vehicle Menu displays.
2. Tap the
EOBD
button. There are two options to establish communication with
the vehicle.
Auto Scan
– selects it to establish communication using each protocol in
order to determine which one the vehicle is broadcasting on.
Protocol
– selects it to open 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.
3. Select a specific protocol if the
Protocol
option is selected. Wait for the OBD II
Diagnostic Menu to appear.
