Hyundai Elantra: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures

Hyundai Elantra AD (2016-2020) 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 resistance between sensor signal terminal and sensor ground terminal.

5.	Check that the resistance is within the specification.

Replacement

If necessary replace the valve body or solenoid valves, hydraulic adjustment is needed, replace the automatic transaxle assembly.

After the automatic transaxle assembly exchange, input the hydraulic calibration information of TCM.

1.	Perform the oil pressure characteristics input procedure. • Oil pressure characteristics(bar code) location • Oil-pressure characteristics input (Transmision exchange)

Underdrive Brake Control Solenoid Valve(UD/B_VFS) Schematic Diagrams

Circuit Diagram ...

Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Description and Operation

Description • Overdrive clutch control solenoid valve(OD/C_VFS) is attached to the valve body. • This variable force solenoid valve directly controls the hydraulic pressure inside the ...

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