Hyundai Sonata: Illuminated engine start/stop button

Whenever the front door is opened, the engine start/stop button will illuminate for your convenience. The light will go off after about 30 seconds when the door is closed.
Engine start/stop button position
OFF
To turn off the engine, press the engine start/stop button with the engine start/stop
button in the ON position and the shift lever in P(Park). When you press the engine
start/stop button wit ...
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General Information
General Troubleshooting Information
Before Troubleshooting
1.
Check applicable fuses in the appropriate fuse/relay box.
2.
Check the batter ...
Fuel Pressure Control Valve. Repair procedures
Inspection
1.
Turn the ignition switch OFF and disconnect the battery negative
(-) cable.
2.
Disconnect the fuel pressure regulator valve ...
Intake Air Temperature Sensor (IATS). Description and Operation
Description
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute
Pressure Sensor and detects the intake air temperature.
To calculate precise air quantity, correction o ...

