Kia Optima: Underdrive Brake Control Solenoid Valve(UD/B_VFS). Description and Operation
Description
Underdrive brake control solenoid valve(UD/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the underdrive brake.
Removal
Replacing an on/off solenoid valve (SS-A, SS-B) does not require additional
hydraulic pressure adjustment; however, the hydraulic pre ...
Underdrive Brake Control Solenoid Valve(UD/B_VFS). Specifications
Specifications
Direct control VFS[35R/C]▷ Control type : Normal low type
Control Pressure kpa(kgf/cm², psi)
500.14~9.81(5.1~0.1,72.54~1.42)
Curren ...
See also:
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the RCV control solenoid valve connector.
3.
Measure resistance between the valve terminals 1
...
MAINTENANCE UNDER SEVERE USAGE CONDITIONS (T-GDI ENGINE)
The following items must be serviced more frequently on cars mainly used
under severe driving conditions.
Refer to the chart below for the appropriate maintenance intervals.
R : Replace
SEVE ...
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