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Kia Sedona: Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures - Automatic Transaxle Control System - Automatic Transaxle System - Kia Sedona YP Service ManualKia Sedona: Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures

Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures

Inspection
1.
Turn ignition switch OFF.
2.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
3.
Disconnect the solenoid valve connector (A).

4.
Measure the resistance between power terminal (5) and signal terminal (16).
Specification : 5.1 ± 0.3 Ω

Replacement
   
If a solenoid valve of VFS type needs to be replaced, the valve body assembly should be replaced and the oil pressure should be adjusted. If the solenoid valve is replaced individually, it is not possible to adjust the oil pressure without additional equipment, and if the oil pressure adjustment procedure is not performed, a shift shock or delay may occur.
1.
Replace the valve body assembly.
(Refer to Hydraulic System - "Valve Body")
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Schematic Diagrams
Circuit Diagram ...

Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Specifications
Specification Item SpecificationControl typeN/H (Normal High)Control pressure kpa (kgf/cm², psi)"500.14 ~ 9.81 (5.1 ~ 0.1, 72.54 ~ 1.42)"Current value (mA)50 ~ 850Coil resistance(Ω)5.1 ± 0.3 ...

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