Hyundai Accent: Accelerator Position Sensor (APS). Description and Operation

Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that it is abnormal.

Installation

• Install the component with the specified torques. • ...

Accelerator Position Sensor (APS). Specifications

Specification Accelerator Position Output Voltage (V) APS1 APS2 C.T 0.7 ~ 0.8 0.275 ~ 0.475 ...

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Warnings and indicators
All warning lights are checked by turning the ignition switch ON (do not start the engine). Any light that does not illuminate should be checked by an authorized HYUNDAI dealer. After starting th ...

Removal
1. Turn ignition switch OFF. 2. Pull up the lock of the HECU connector (A), and then disconnect the connector. ...

Installation
• Do not spill brake fluid on the vehicle: it may damage the paint; if brake fluid does conta ...