Autel AUTOLINK AL529 Manual page 49

The O2 Monitor Test function is not supported by vehicles which
communicate using a controller area network (CAN). For O2 Monitor Test
results of CAN-equipped vehicles, see
1) Use the UP/DOWN scroll button to select O2 Monitor Test from
Diagnostic Menu and press OK button.
2) Wait a few seconds while the scan tool validates the PID MAP.
3) Use the UP/DOWN scroll button to select O2 sensor from O2 Monitor
Test menu and press OK button.
Figure 4-31 Sample O2 Monitor Test Screen 1

If the vehicle does not support the mode, an advisory message will
be displayed on the screen.
4) View test results of selected O2 sensor.
Figure 4-32 Sample O2 Monitor Test Screen 2
5) Use the UP/DOWN scroll button to view more screens of data if
additional information is available in more than one page.
6) Press the ESC button to return to the previous menu.
On-Board Monitor Test
45
on page 46.