Hyundai Sonata: Engine Control System / RCV Control Solenoid Valve Description and Operation
RCV (Recirculation Valve) Control Solenoid Valve is installed
on the cooling pan motor top and operates the RCV actuator which
controls the by-pass passage of the turbo-charger compressor.
When the throttle valve is closed during engine running
[Tip-out], crash noise of the impeller will occur because of rapid
increasing of the boost pressure. So, in this case, in order to prevent
this phenomenon, ECM maintains the appropriate boost pressure by opening
the by-pass passage.

Inspection
[Motor]
1.
Turn ignition switch OFF.
2.
Disconnect the EWGA connector.
3.
Check that the EWGA is stuck by foreign material.
4.
Measure resistance between motor (+) and ( ...
Specification
ItemSpecificationCoil Resistance(?)28.3 ~ 31.1 [20°C(68°F)]
...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting
SymptomSuspect AreaRemedy (Refer to page)Water leaks from panorama sunroofDirt accumulated in drain tubeClear dirt inside of drainClogged drain tubeBlow air into drain to remove dirtBroken or dislocated drain tube, defective or cracked clipCheck tube installation and flange cont ...
Hyundai Sonata LF 2014-2019 Owners Manual: Front Seats
WARNING
Take the following precautions when adjusting your seat:
NEVER attempt to adjust the seat while the vehicle is moving. The seat
could respond with unexpected movement and may cause loss of vehicle control
resulting in an accident.
Do not place anything under the front seats. Loose obj ...