Hyundai Equus: 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 a malfunction has occurred.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 3 and 4.
4.
Check that the resistance is within the speci ...
Specification
AcceleratorPositionOutput Voltage (V)APS1APS2C.T0.7 ~ 0.80.33 ~ 0.43W.O.T3.85 ~ 4.351.93 ~ 2.18
...
See also:
Specifications
Tightening Torques
ItemN.mkgf.mlb-ftDriver airbag (DAB)7.8 ~ 10.80.8 ~ 1.15.8 ~ 8.0Passenger airbag (PAB)7.8 ~ 11.80.8 ~ 1.25.8 ~ 8.7Side airbag (SAB)6.9 ~ 8.80.7 ~ 0.95.1 ~ 6.5Curtain airbag (C ...
Wheel alignment and tire balance
The wheels on your vehicle were aligned and balanced carefully at the factory
to give you the longest tire life and best overall performance.
In most cases, you will not need to have your wheels al ...
Heated Oxygen Sensor (HO2S) Description and Operation
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina
and is installed both upstream and downstream of the Manifold Catalytic
Converter. The sensor output voltage varies in ...