Hyundai Genesis DH Quiz
Engine Control System/Fuel System

Accelerator Position Sensor (APS) Description and Operation

In this manual: Engine Control System/Fuel System
General Information — 9Engine Mechanical System — 103Engine Electrical System — 54Emission Control System — 23Engine Control System/Fuel System — 127Automatic Transmission System (SBC) — 90All-Wheel Drive (AWD) System — 20Drive Shaft and Axle — 27Suspension System — 41Steering — 19Restraints — 56Brake System — 56Body (Interior and Exterior) — 211Body Electrical System — 279Heating, Ventilation, and Air Conditioning — 55
~1min read

Description

The Accelerator Position Sensor (APS) is mounted on the accelerator pedal module and detects the angle of the accelerator pedal. The APS is one of the most important sensors in the engine control system, so it consists of two sensors that have individual sensor power and ground lines. The second sensor monitors the first sensor, and its output voltage is half that of the first. If the ratio of sensor 1 to sensor 2 falls outside the allowable range (approximately 1/2), the diagnostic system determines that it is abnormal.

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A quick Hyundai Genesis DH quiz: every answer comes with an explanation and a link to the manual page.