Toyota Corolla (E120): Components

Replacement

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    Circuit description
    The rear heated oxygen sensor is used to monitor oxygen concentration in the exhaust gas. For optimum catalytic converter operation, the air fuel mixture must be maintained near the ideal ”stoichiometric” ratio. The heated oxygen sensor output voltage changes suddenly in the vicinity of ...

    If the engine will not start
    If the engine will not start even though correct starting procedures are being followed , consider each of the following points: The engine will not start even though the starter motor operates normally. One of the following may be the cause of the problem: ● There may not be sufficient f ...

    Key confinement prevention function does not work properly (unlock warning switch circuit)
    Circuit description The unlock warning switch turns on when the key is inserted in the ignition key cylinder and the door courtesy switch turns on when the driver’s door is opened, and the integration relay monitors both switches conditions. According to these switches conditions, the int ...