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:
Illuminated ignition switch
Whenever a front door is opened, the ignition switch will be illuminated for
your convenience, provided the ignition switch is not in the ON position. The light
will go off immediately when th ...
Specifications
Specifications
Front Suspension
Item
Specification
Suspension type
MacPherson Strut
Shock absorber
Type
...
Tire rotation
To equalize tread wear, it is recommended that the tires be rotated every 7,500
miles (12,000 km) or sooner if irregular wear develops.
During rotation, check the tires for correct balance.
When r ...
