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3.9.6 〇2 sensor test
OBD lI regulations established by SAE require that applicable vehicles
monitor and test oxygen (O2) sensors to detect problems related to fuel
efficiency and vehicle emissions. These tests are not demand tests and
are performed automatically when engine operating conditions are
within specified limits. These test results are stored in the on-board
computer memory
The O2 Sensor Test function allows you to retrieve and display the O2
Sensor Monitor test results for the most recently performed tests from
the vehicle's on-board computer.
The O2 sensor test function is not supported by vehicles that communi-
cate via a Controller Area Network (CAN). The results of the O2 sensor
test of vehicles with CAN can be found in the "On-Board Mon. Test"
chapter.
Select O2 Sensor Test from the Diagnostic Menu and press ENTER.
The screen will be displayed as shown below:
Diagnostic Menu
Read Codes
Erase Codes
I/M Readiness
Data Stream
Freeze Frame
O2 Sensor Test
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