Toyota Corolla (E120): Inspection procedure

1 Check operation(stop lamp swtich assy)

  1. Check that the stop light comes on when the brake pedal is depressed, and turns off when the brake pedal is released.

2 Input signal check

2 Input signal check

  1. See input signal check on page 05–745.
  2.  check the indicator light when the brake pedal is depressed.

    Ok: the indicator light goes off when the brake pedal is depressed.

3 Inspect terminal voltage(stp–)

3 Inspect terminal voltage(stp–)

  1. Remove the cruise control ecu assy with connectors still connected.
  2.  turn the ignition switch to on.
  3.  measure voltage between terminal 3 (stp–) of cruise control ecu assy connector and body ground, when the brake pedal is depressed and released.

    Ok:

4 Check harness and connector(between cruise control ecu assy

4 Check harness and connector(between cruise control ecu assy and stop lamp switch assy)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and stop lamp switch assy

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

    Share this page:

    Other materials:

    Repair
    1. Steering off center repair procedure Inspect steering wheel off center.  Apply masking tape on the top center of the steering wheel and steering column upper cover.  Driving the vehicle on a straight line for 100 meters at a constant speed of 35 mph (56 km/h), and ho ...

    Monitor description
    Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies the sensor with a regulated 5 v reference–voltage and the sensor returns a signal voltage betwee ...

    Body panel sealing areas
    Be sure to apply body sealer to the body panel joints and door edges (tip of outer panel folded part), etc., To waterproof and rustproof them. Hint:  apply degreasing agent to a clean cloth and clean the sealer application areas. After removing the applied spot sealer from the se ...