Toyota Corolla (E120): Circuit inspection

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Electronic circuit inspection procedure

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    Circuit description
    A thermistor is built in the engine coolant temperature sensor and changes the resistance value according to the engine coolant temperature. The structure of the sensor and connection to the ecm is the same as those of the intake air temperature sensor. Hint: if the ecm detects the dtc ...

    Circuit description
    Monitor description The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns ...

    Cruise control actuator assy
    Replacement 1. Remove cruise control actuator cover Disengage the 2 claws, then remove the cruise control actuator cover. 2. Separate accelerator control cable assy Loosen the double nut and separate the accelerator control cable assy. 3. Separate accelerator auto drive ca ...