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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 chapter
″
On-Board Mon. Test
″
.
1)
Use
UP/DOWN
button to select
O2 Mon. Test
from
Diagnostic
Menu
and press
OK
button.
2)
Wait a few seconds while the scan tool communicates with
vehicle control unit.
3)
Use
UP/DOWN
button to select O2 sensor
from
O2 Monitor
Test
menu and press
OK
button.
Diagnostic Menu
Read Codes
Erase Codes
Live Data
Freeze Frame
I/M Readiness
►
O2 Mon. Test
OK
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