Hyundai Sonata: 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. ...
Accelerator Position Sensor (APS). Specifications
Specification
Accelerator
Position
Output Voltage (V)
APS1
APS2
C.T
0.7 ~ 0.8
0.29 ~ 0.46
...
See also:
Components and Components Location
Components
1. Steering wheel
2. Steering column
3. ECU
4. Motor
5. Steering gear box
...
Main components of occupant classification system
A detection device located within the front passenger seat frame.
Electronic system to determine whether the front passenger air bag system
should be activated or deactivated.
A warning ligh ...
Special Service Tools
Special Service Tools
Tool (Number and name)
Illustration
Use
Crankshaft front oil seal installer
(09214-3K000)
(09231-H1100)
...
