Toyota Corolla (E120): Fail–safe chart

If any of the following codes is recorded, the ecm enters the fail–safe mode.

Check for intermittent problems

Check for intermittent problems

Hand–held tester only:

by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent problems.

  1. Clear the dtcs .
  2.  set the check mode .
  3.  perform a simulation test .
  4.  check the connector and terminal .
  5.  wiggle the harness and connector
    Share this page:

    Other materials:

    Fog light switch
    The fog lights secure excellent visibility in difficult driving conditions, such as in rain and fog. 1 Turns the front fog lights off 2 Turns the front fog lights on *1: For U.S.A. *2: For Canada ■Fog lights can be used when The headlights are on in low beam. ...

    Symptom confirmation and diagnostic trouble code
    Hint: the diagnostic system in corolla has various functions. The first function is the diagnostic trouble code (dtc) check, in which a malfunction in the signal circuits to the ecu is stored in code form in the ecu memory. Another function is the input signal check, which checks if ...

    Replacement
    Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Remove horn button assy Place the front wheels facing straight ahead.  using a torx socket wrench (t30), loosen the 2 torx screws until the groove along the screw circumference catches on the screw ca ...