Toyota Corolla (E120): Circuit description

Wiring diagram

Wiring diagram

Inspection procedure

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    Circuit description
    Refer to dtcs p0100 Dtc no. Dtc detection condition Trouble area P0101 After engine is warmed up, conditions (a) to (d) continue for more than 10 seconds (2 trip detection logic):  engine speed less than 900 rpm  throttle valve fully closed &nbs ...

    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 procedure
    1 Check tvip ecu Check that the operation of the tvip function is normal. Hint: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not. 2 Check wire harness (tvip ecu integration relay) Disconnect the tvip ecu and integration relay connectors. ch ...