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:
Adaptive Front Lighting System Description and Operation
Description
AFLS Unit(ECU)
AFLS located in Cockpit Module is provided information of vehicle (steering wheel signal,vehicle speed, inclination of vehicle).
Based on provided information , it calc ...
General Information
General
1.
Basically, all measurements in this manual are taken with a tracking gauge.
2.
When a measuring tape is used, check to be sure there is no elongation, twisting or bending.
3.
...
Brake Booster Components and Components Location
Components
1. Brake booster2. Master cylinder assembly3. Washer4. Nut5. Vacuum hose (Lammda)6. Vacuum hose (Tau)
...