Hyundai Sonata: Engine Control System / Accelerator Position Sensor (APS) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / 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.

Rail Pressure Sensor (RPS) Repair procedures
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. ConditionOutput Voltage (V)Idle Approx. 1.21, ...

Accelerator Position Sensor (APS) Specifications
Specification AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.29 ~ 0.46W.O.T3.85 ~ 4.351.93 ~ 2.18 ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Securing a child restraint with a lap belt or lap/shoulder belt
When not using the LATCH system, all child restraints must be secured to a vehicle rear seat with the lap part of a lap/shoulder belt. WARNING ALWAYS place a rear-facing child restraint in the rear seat of the vehicle. Placing a rear-facing child restraint in the front seat can result in serious i ...

Hyundai Sonata LF 2014-2019 Owners Manual: System setting and activation
System setting The driver can activate the AEB by placing the ignition switch to the ON position and by selecting 'User Settings', 'Driving Assist', and 'AEB (Automatic Braking System)'. The AEB deactivates, when the driver cancels the system setting. The warning light illuminates on the LCD dis ...

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