Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    Circuit description
    In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...

    Description
    1. Radio wave band The radio wave bands used in radio broadcasting are as follows: Lf: low frequency mf: medium frequency hf: high frequency vhf: very high frequency 2. Service area There are great differences in the size of the service area for am and fm broadcasting. Sometimes ...

    Selecting, fast-forwarding and reversing tracks/files/songs
    ■ Selecting a track/file/song Press the “∧” or “∨” button on “SEEK/TRACK” or turn the “TUNE/ SCROLL” knob to select the desired track/file/song number. To fast-forward or reverse, press and hold the “∧” or “∨” button on “SEEK/TRACK”. ...