Hyundai Sonata: Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation
Manifold Absolute Pressure Sensor (MAPS) is a speed-density
type sensor and is installed on the surge tank. It senses absolute
pressure of the surge tank and transfers the analog signal proportional
to the pressure to the ECM. By using this signal, the ECM calculates the
intake air quantity and engine speed.
The MAPS consists of a piezo-electric element and a hybrid IC
amplifying the element output signal. The element is silicon diaphragm
type and adapts pressure sensitive variable resistor effect of
semi-conductor. Because 100% vacuum and the manifold pressure apply to
both sides of the sensor respectively, this sensor can output analog
signal by using the silicon variation proportional to pressure change.

Inspection
Throttle Position Sensor (TPS)
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T.
Specific ...
Specification
Pressure[kPa (kgf/cm?, psi)]Output Voltage (V)32.5 (0.33, 4.71)0.5284 (2.90, 41.19)4.5
...
Other information:
Hyundai Sonata LF 2014-2019 Owners Manual: Instrument Cluster Control
Adjusting instrument cluster illumination
When the vehicle's parking lights or headlights are on, press the illumination
control button to adjust the brightness of the instrument panel illumination.
When pressing the illumination control button, the interior switch illumination
intensity is also ...
Hyundai Sonata LF 2014-2019 Owners Manual: Seat Belt Safety Precautions
Always fasten your seat belt and make sure all passengers have fastened their
seat belts before starting any trip. Air bags are designed to supplement the seat
belt as an additional safety device, but they are not a substitute. Most states
require all occupants of a vehicle to wear seat belts.
WA ...