Toyota Corolla (E120): Oxygen sensor monitor (front and rear o2s system)

  1. Preconditions

The monitor will not run unless:

  • mil is off
  1.  drive pattern
  1.  connect the obd ii scan tool to the dlc3 to check monitor status and preconditions.
  2.  Start the engine and allow it to idle for 2 minutes or more.
  3.  Drive the vehicle at 25 mph (40 km/h) or more for at least 50 seconds.
  4.  Stop the vehicle and allow the engine to idle for 40 seconds or more.
  5.  Perform steps (3) and (4) ten times.
  6.  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).
    Share this page:

    Other materials:

    Body panel anti-rust agent (wax) application areas
    Apply rustop w to the doors and hood edges (tips of outer panel folded parts) and undersides, areas around hinges, etc.To prevent rust. Coat the undersides of the edges using a nozzle and air gun, and coat the areas around the hinges using a brush. Hint:  if rustop is unnecessarily ...

    Problem symptoms table
    The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot the problem when a normal code is displayed in the diagnostic trouble code chart but the problem is still occurring. Numbers in the table indicate the order in which the circ ...

    Dialing by selecting a name
    1 Select “Phonebook” using . 2 Select the desired name using and press the off-hook switch. By pressing (Add S. Dial) and then one of the speed dial buttons (from to ) while the desired name is selected, it can be registered as a speed dial. ...