47
Chapter 11 O2 Mon. Test (O2 Monitor Test) (OBDII Only)
OBD II regulations set by the SAE require that relevant vehicles monitor and test the
oxygen (O2) sensors to indentify 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-boards 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.
To perform O2 Mon. Test,
1. Click the O2 Mon. Test button.
2. Wait a few seconds while the scan tool validates.
Possible 1: The following screen indicates the select mode is not supported
Click OK to exit.
Possible 2:
To Next Page
Loading...
