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

Hyundai Elantra AD (2016-2020) 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.

Heated Oxygen Sensor (HO2S) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between the HO2S terminals 2 and 5 [B1/S1]. Measure resistance between the HO2S termina ...

Accelerator Position Sensor (APS) Specifications

Specification AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.325 ~ 0.425W.O.T3.98 ~ 4.221.93 ~ 2.17 ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Parking Brake & Brake Fluid Warning Light
This warning light illuminates: Once you set the ignition switch or the Engine Start/Stop button to the ON position. - It illuminates for approximately 3 seconds. - It remains on if the parking brake is applied. When the parking brake is applied. When the brake fluid level in the re ...

Hyundai Elantra AD (2016-2020) Owners Manual: Sunvisor
To use a sunvisor, pull it downward. To use a sunvisor for a side window, pull it downward, unsnap it from the bracket (1) and swing it to the side (2). To use the vanity mirror, pull down the sunvisor and slide the mirror cover (3). Adjust the sunvisor forward or backward (4) as needed. Use t ...