Hyundai Ioniq: Engine Control System / 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 it is abnormal.

Inspection1.Connect the GDS on the Data Link Connector (DLC).2.Measure the output voltage of the RPS at idle and various engine speed. Condition Output Voltage (V) Idle Approx...
Specification
Accelerator Position
Output Voltage (V)
APS1
APS2
C...
Other information:
The Electronic Stability Control (ESC) system helps to stabilize the vehicle
during cornering maneuvers. ESC checks where you are steering and where the vehicle
is actually going. ESC applies braking pressure to any one of the vehicle's brakes
and intervenes in the engine management system to assist the driver with keeping
the vehicle on the intended path...
Replacement
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When installing the belt, make sure not to damage the retractor. 1.Remove the rear pillar trim.(Refer to Interior Trim - "Rear Pillar Trim")2.After loosening the mounting bolt, remove the rear seat belt lower anchor (A)...
Categories
Folding the rear seat
The rear seatbacks can be folded to facilitate carrying long items or to increase
the luggage capacity of the vehicle.
WARNING
Never allow passengers to sit on top of the folded down seatback while
the vehicle is moving. This is not a proper seating position and no seat belts
are available for use. This could result in serious injury or death in case
of an accident or sudden stop.
Objects carried on the folded down seatback should not extend higher
than the top of the front seatbacks. This could allow cargo to slide forward
and cause injury or damage during sudden stops.
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