Toyota Corolla (E120): Location

On–vehicle inspection

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    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 ...

    Do-it-yourself service precautions
    If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. CAUTION The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To avoid death or serious injury, observe t ...

    Inspection
    1. Power window system circuit 2. Inspect power window regulator master switch assy Inspect the master switch continuity. [Driver’s switch (window unlock and lock)] Standard: [Front passenger’s switch (window unlock)] standard: [Front passenger’s switch (window lock)] ...