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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    Customizing vehicle features
    It is possible to customize the language and Eco Driving Indicator Light settings using the “DISP” switch. When customizing vehicle features, ensure that the vehicle is parked in a safe place with the shift the shift lever to P (continuously variable transmission) or N (manual transmissio ...

    Circuit description
    When the brake pedal is depressed, the stop lamp switch assy sends a signal to the cruise control ecu assy. When the cruise control ecu assy receives this signal, it cancels the cruise control. A fail–safe function is provided so that cancel functions normally, even if there is a malfu ...

    Replacement
    Hint: components: 1. Remove radiator grille sub–assy 2. Remove front bumper cover 3. Remove lh headlamp assy Remove the 3 bolts.  pull out the headlight assy lh forward, then disconnect the bracket of body side. Release the claws and disconnect the connectors as sh ...