Diagnostics
Oxygen / af sensor heater monitor
In this manual: Diagnostics
5steps
~30min
2/5difficulty
Done 0 of 5

- Preconditions
The monitor will not run unless:
- mil is off
- drive pattern
- connect the obd ii scan tool to the dlc3 to check monitor status and preconditions.
- Start the engine and allow it to idle for 9 minutes.
- Drive the vehicle at 40 km/h or more for at least 2 minutes.
- If the readiness status dose not switch to complete, make sure that the preconditions are met and the ignition switch turned off and then repeat steps (2) and (3).
Test yourself
A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.
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