ACCELERATOR PEDAL POSITION (APP) SENSOR CONSTRUCTION/OPERATION [L8, LF]


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•  Installed on the accelerator pedal.
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•  The Hall element design has been adopted on the sensor.
•  A non contact type sensor has been adopted to improve durability.
•  The APP sensor is composed of the main sensor and sub sensor, and detects the accelerator opening angle with these two sensors (main and sub).
•  The main sensor output a duty signal, and the sub sensor output a voltage signal.
•  Even if a malfunction occurs in either one of the sensors, the detection is performed with a normal sensor drive-by-wire control is maintained.
•  If both the main and sub sensors for the APP sensor malfunction, signals necessary for the drive-by-wire control are not input to the PCM and the drive-by-wire control is disabled.
•  However, even though the drive-by-wire control is disabled, the throttle valve opening angle necessary for minimum driving is maintained mechanically.
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