30
2.
Depending on readiness test, one of these 2 screens will be present. Use the up and down
arrow keys to scroll through data to select lines, and left and right arrow keys to scroll back and
forth through different screens of data.
Figure 5-21 Sample IM Readiness Screen 1
Or
Figure 5-22 Sample IM readiness screen 2
3.
Press the
BACK
key to exit.
5.7 O2 Monitor Test
OBD II regulations require certain vehicles monitor and test oxygen (O2) sensors to isolate fuel
and emissions related faults. The O2 Monitor Test function is used to retrieve completed O2
sensors monitor test results.
The O2 Monitor Test is not an on-demand test. O2 sensors are not tested when selected via the
menu but tested when engine operating conditions are within specified limits.
If the vehicle uses a controller area network (CAN) protocol to communicate, this function is not
supported by vehicle. Refer to “On-Board Monitor Tests” on page 38-39 for O2 monitor data of
CAN-equipped vehicles.
To retrieve O2 monitor data:
1.
Scroll with the arrow keys to highlight
O2 Monitor Test
from Diagnostic Menu and press the
ENTER
key. A screen with a list of available sensors displays.