Toyota Corolla (E120): Circuit description

Wiring diagram

Wiring diagram

Inspection procedure

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    Circuit description
    When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in high concentrations. If this hc concentration is high enough, there could be an increase in exhaust emissions levels. High concentrations of hc passing through the catalyst also cause to temperature of the catalyst to ...

    Monitor description
    Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies the sensor with a regulated 5 v reference–voltage and the sensor returns a signal voltage betwee ...

    Content of driving information
    ■ Display items Fuel economy Eco Driving Indicator/Driving range ■ Fuel economy Use the displayed values as a reference only. Current fuel consumption Displays instantaneous current fuel consumption. Average fuel economy (after reset) To reset the average fuel economy display, press ...