Toyota Corolla (E170): Adjusting the screen contrast/brightness

1 Select “General” on the “Display Settings” screen.

2 Adjust the display as desired by selecting “+” or “-”.

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    Circuit description
    A thermistor is built in the engine coolant temperature sensor and changes the resistance value according to the engine coolant temperature. The structure of the sensor and connection to the ecm is the same as those of the intake air temperature sensor. Hint: if the ecm detects the dtc ...

    Diagnostic trouble code chart
    If a dtc is displayed during the dtc check, check the circuit listed in the table below and proceed to the page given. * :● ... Mil light up ...

    Circuit description
    The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...