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:
Impact sensing door unlock system (if equipped)
All doors will be automatically unlocked when the impact is delivered to impact
sensors while the ignition switch is ON. However, the doors may not be unlocked
if mechanical problems occur with th ...
SRS Control Module (SRSCM). Components and Components Location
Components
...
Display settings
Press the key - Select [Display]
through TUNE knob or
key Select menu through
TUNE knob
Mode Pop up
[Mode Pop up] - Changes /
selection mode
• During On state, press the or
key ...
