Toyota Corolla (E120): Circuit description

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: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    Circuit description
    The vapor pressure sensor, vsv for canister closed valve (ccv), vsv for pressure switching valve are used to detect abnormalities in the evaporative emission control system. The ecm decides whether there is an abnormality in the evaporative emission control system based on the vapor pressur ...

    Instrument panel/meter
    Preparation Sst Recomended tools Equipment Seat Preparation Equipment Theft deterrent & door lock Preparation Recomended tools ...

    Manual transmission / transaxle
    Service data Torque specification ...