User Manual

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If the process quits, recheck all the cable connections to assure good communications
and initialize the flash procedure. The programming procedure will automatically repeat
if the previous operation does not succeed.
4.11 Generic OBD II Operations
The OBD II/EOBD vehicle diagnosis offers a quick way to check for DTCs, isolate the
cause of a dashboard illuminated malfunction indicator lamp (MIL), check monitor status
prior to emissions certification testing, verify repairs, and perform other emissions-related
services. The OBDII direct access option is also used for testing OBD II/EOBD-compliant
vehicles that are not included in the Diagnostics database. Diagnostics toolbar buttons
at the top of the screen are available for specific vehicle diagnostics. See Table 4-2
Diagnostics Toolbar Buttons on page 32 for details.
4.11.1 General Procedure
 To access the OBD II/EOBD diagnostics functions
1. Tap the Diagnostics application button in 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 – select it to establish communication using each protocol in
order to determine which one the vehicle is using.
 Protocol – select 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.