Diagnostics

Oxygen / af sensor heater monitor

5steps
~30min
2/5difficulty
Done 0 of 5
Toyota Corolla. Oxygen / af sensor heater monitor
  1. Preconditions

The monitor will not run unless:

  • mil is off
  1. drive pattern
  2. connect the obd ii scan tool to the dlc3 to check monitor status and preconditions.
  3. Start the engine and allow it to idle for 9 minutes.
  4. Drive the vehicle at 40 km/h or more for at least 2 minutes.
  5. 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.