Use and Care Manual

5.6 O2 Monitor Test
OBD II regulations set by SAE require that relevant vehicles
monitor and test the oxygen (O2) sensors to identify problems
related to fuel efficiency and vehicle emissions. These tests
are not on-demand tests and they are done automatically when
engine operating conditions are within specified limits. These
test results are saved in the on-board computer's memory.
The O2 Monitor Test function allows retrieval and viewing
of O2 sensor monitor test results for the most recently
performed tests from the vehicle's on-board computer.
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 5.7 “On-Board Monitor Test”.
1. Use the Up/Down scroll button to select O2
Monitor Test from Diagno
stic Menu (See
Figure 5.4) 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.
............O2 Monitor Test 2/8…
O2 Bank1 Sensor1
O2 Bank1 Sensor2
O2 Bank1 Sensor3 ?
O2 Bank1 Sensor4
O2 Bank2 Sensor1
O2 Bank2 Sensor2
Figure 5.37
• If
the vehicle does not support the mode, an advisory
message will be displayed on the screen.
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