Hyundai Santa Fe: Accelerator Position Sensor (APS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Santa Fe: Accelerator Position Sensor (APS). Description and Operation

Description

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.
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Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Measure the output voltage of the RPS at idle and various engine speed. Condition Output Voltage (V) Idle  Approx. 1.2 1,500 rpm ...

Accelerator Position Sensor (APS). Specifications
Specification Accelerator Position Output Voltage (V) APS1 APS2 C.T 0.7 ~ 0.8 0.275 ~ 0.475 W.O.T 3.8 ~ 4.4 1.75 ~ 2.35 ...

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Signal Waveform ...

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