Toyota Corolla (E170): Eco Drive Indicator Light

During Eco-friendly acceleration operation (Eco driving), Eco Driving Indicator Light will turn on.

When the acceleration exceeds Zone of Eco driving, and when the vehicle is stopped, the light turns off.

Eco Drive Indicator Zone Display

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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 ...

    Inspection procedure
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    Circuit description
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