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22
SYSTEM TEST MENU
Additional Functions
SYSTEM TEST MENU
22
O2 Sensor Test
OBD2 regulations require that applicable vehicles monitor and test operation
of the oxygen (O2) sensors to identify problems that can affect fuel
efficiency and vehicle emissions. These tests are performed automatically
when engine operating conditions are within predefined limits. Results of
these tests are stored in the on-board computer's memory.
The
O2 Sensor Test
function lets you retrieve and view O2 sensor
monitor test results for the most recently completed tests from your
vehicle's on-board computer.
The scan tool does not perform O2 sensor tests, but retrieves
results from the most recently performed O2 sensor tests from
the on-board computer's memory. You may retrieve O2 sensor
test results for only one test of one sensor at any given time.
1.
From the System Test menu, select
O2
Sensor Test,
then press
ENTER
.
2.
A "One moment please..." message
displays, followed by the select sensor
screen.
The Select Sensor screen displays.
The screen shows all O2 sensors
applicable to the vehicle under test.
If O2 sensor test data is not presently stored in the vehicle’s
computer, an advisory message displays. Press
M
to return to
the Main Menu.
If O2 sensor tests are not supported by the vehicle under test,
an advisory message displays. Press
M
to return to the Main
Menu.
3.
Select the O2 sensor for which you
wish to view test results, then press
ENTER
to display the test results.
4.
When test results have been retrieved,
data for the selected sensor test will
show on the diagnostic tool's display.
5.
When you have finished viewing the
retrieved test data:
To view test results for the next sensor, select
Next
, then press
ENTER
.
To return to the Select Sensor screen, select
Back
, then press
ENTER
.
6.
When you have finished viewing test data for all desired sensors,
select
Back
, then press
ENTER
to return to the System Test
menu; or, press
M
to return to the Main Menu.
Summary of Contents for ZURICH OBD2
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