Hyundai Sonata: Fuel Pressure Control Valve. Schematic Diagrams
Circuit Diagram

Fuel Pressure Control Valve. Troubleshooting
Signal Waveform
...
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 ...
See also:
Before entering vehicle
Be sure that all windows, outside mirror( s), and outside lights are clean.
Check the condition of the tires.
Check under the vehicle for any sign of leaks.
Be sure there are no obstacles beh ...
Hands Free Switch. Repair procedures
Inspection
1.
Check the hands free remote control switch for resistance between
No.3 and No.4 terminals in each switch position.
...
Air bag warning light
The purpose of air bag warning light in your instrument panel is to alert you
of a potential problem with your air bag - Supplemental Restraint System (SRS).
When the ignition switch is turned ON ...
