Hyundai Creta: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve (UD/B_VFS)

Description and operation

Description
•
Underdrive brake control solenoid valve (UD/B) is attached to the valve body.
•
This variable force solenoid valve indirectly controls the hydraulic pressure inside the underdrive brake.

Specifications

Specifications
Clutch/Brake control VFS [UD/B]
â–· Control type : Normally high type
Control Pressure [kpa (kgf/cm², psi)]
500.14 ~ 9.81 (5.1 ~ 0.1,72.54 ~ 1.42)
Current value (mA)
850 ~ 50
 Internal resistance (Ω)
5.1

Schematic diagrams

Circuit Diagram

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 resistance between solenoid valve terminals.
5.
Check that the resistance is within the specification.
  
•
If DTC about the Torque Converter Control Solenoid Valve is found, replace according to the procedures removal / installation.
Removal
  
Replacing an on/off solenoid valve (SS-A, SS-B) does not require additional hydraulic pressure adjustment; however, the hydraulic pressure will need to be adjusted after replacing the VFS solenoid valve. If replacing the VFS solenoid valve; also replace the valve body assembly.
(Refer to Valve Body System - "Valve Body")
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