Toyota Corolla (E120): Circuit description

Wiring diagram

Wiring diagram

Inspection procedure

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    For vehicles equipped with catalytic converter
    Caution: if large amount of unburned fuel flows into the converter, it may cause overheating and a fire hazard. To prevent this, observe the following precautions. Use only unleaded gasoline.  avoid prolonged idling. Avoid running the engine at idle speed for more than 20 minutes. ...

    Changing the passkey
    1 Select “Passkey” using . 2 Input a 4 to 8-digit passkey using . Input the number 1 digit at a time. 3 When the entire number to be registered as a passkey has been input, press again. If the passkey to be registered has 8 digits, pressing again is not necessary. ...

    Evap monitor (vacuum pressure monitor)
    Notice: a cold soak must be performed prior to conducting the drive pattern to complete the internal pressure readiness monitor. Cold soak preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less. ...