Toyota Corolla (E120): Circuit description

The key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Check mode procedure
    1. Dtc check (check mode) Hint: hand–held tester only: compared to the normal mode, the check mode has more sensing ability to detect malfunctions. Furthermore, the same diagnostic items which are detected in the normal mode can also be detected in the check mode. Procedure for check m ...

    Inspection procedure
    Hint: start the inspection from step 1 in case of using the hand–held tester and start from step 2 in case of not using the hand–held tester. 1 Read value of hand–held tester(skid control sensor) Check that there is no difference between the speed value output from the speed sensor ...

    Brake
    On–vehicle inspection 1. Inspect brake line pipes and hoses Hint: work in a well–lighted area. Turn the front wheels fully to the right or left before begining.  check all the brake lines and hoses for: damage wear deformation cracks corrosion leaks bends twi ...