Kia Cadenza YG: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures

Kia Cadenza YG 2016-2021 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")

    Circuit Diagram

    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.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Components and Components Location

    Component Location 1. Start Stop Button(SSB)2. FOB key3. RF receiver4. Smart key unit5. Interior antenna 16. Interior antenna 2 7. Trunk antenna8. Bumper antenna9. Door handle & door antenna10. Trunk lid open switch11.

    Kia Cadenza YG 2016-2021 Service Manual: Components and Components Location

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