Toyota Corolla (E120): Light control switch circuit

Wiring diagram

Inspection procedure

Inspection procedure

1 Check headlamp dimmer switch assy (light control switch)

2 Check wire harness (tvip ecu  light control switch)

2 Check wire harness (tvip ecu  light control switch)

  1. Disconnect the tvip ecu and light control switch connectors.
  2.  check the continuity between the terminals of the tvip ecu and light control switch connectors, as shown in the illustration and table.

Standard:

3 Check wire harness (light control switch  body ground)

3 Check wire harness (light control switch  body ground)

  1. Disconnect the light control switch connector.
  2. check the continuity between the terminal of the light control switch connector and the body ground, as shown in the illustration and table.

Standard:

Proceed to next circuit inspection shown on problem symptoms table

Proceed to next circuit inspection shown on problem symptoms table

    Share this page:

    Other materials:

    Data list/active test
    1. Data list Hint: using the data list displayed by the hand–held tester or the obd ii scan tool, you can read the value of the switches, sensors, actuators and so on without parts removal. Reading the data list as a first step of troubleshooting is one method to shorten diagnostic time. ...

    Correct use of the seat belts
    Extend the shoulder belt so that it comes fully over the shoulder, but does not come into contact with the neck or slide off the shoulder. Position the lap belt as low as possible over the hips. Adjust the position of the seatback. Sit up straight and well back in the seat. Do not twist ...

    On–vehicle inspection
    1. Inspect sliding roof function  check the slide opening operation (manual).  Turn the ignition switch on.  When keeping operating the sliding roof switch to the open side, check that the roof glass will slide and be fully opened.  check the slide closing ...