Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Readiness monitor drive pattern / Oxygen sensor monitor (front and rear o2s system)
Toyota Corolla (E120): Oxygen sensor monitor (front and rear o2s system)

- 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 2 minutes or more.
- Drive the vehicle at 25 mph (40 km/h) or more for at least 50 seconds.
- Stop the vehicle and allow the engine to idle for 40 seconds or more.
- Perform steps (3) and (4) ten times.
- If the readiness status dose not switch to complete, make sure that the preconditions are met and the ignition switch is turned off and then repeat steps (1) through (5).
Other materials:
For vehicles equipped with catalytic converter
Caution:
if large amount of unburned fuel flows into the converter, it may cause
overheating and a fire hazard.
To prevent this, observe the following precautions.
Use only unleaded gasoline.
avoid prolonged idling.
Avoid running the engine at idle speed for more than 20 minutes. ...
Overhaul
1. Precaution
2. Disconnect battery negative terminal
3. Inspect place front wheels facing straight ahead
4. Remove horn button assy
Notice:
if the airbag connector is disconnected with the ignition
switch being at on, dtcs will be recorded.
using a torx socket wrench, loosen the ...
Maintenance requirements
To ensure safe and economical driving, day-to-day care and regular maintenance
are essential. It is the owner’s responsibility to perform regular checks. Toyota
recommends the following maintenance:
General maintenance
General maintenance should be performed on a daily basis. This can be don ...


