Hyundai Elantra: Underdrive 
Brake Control Solenoid Valve(UD/B_VFS). Description and Operation - Automatic Transaxle Control System - Automatic Transaxle System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra: Underdrive Brake Control Solenoid Valve(UD/B_VFS). Description and Operation

Description

Underdrive Brake(UD/B) Control Solenoid is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the Underdrive Brake(UD/B).