Kia Optima Hybrid: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve (UD/B_VFS) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve (UD/B_VFS) Description and Operation

Description
Underdrive brake control solenoid valve(UD/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the underdrive brake.

35R Clutch Control Solenoid Valve (35R/C_VFS) Repair procedures

Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose ...

Underdrive Brake Control Solenoid Valve (UD/B_VFS) Specifications

Specifications Direct control VFS [UD/B] Control type : Normal high type Control Pressure kpa(kgf/cm?, psi)500.14 ~ 9.81(5.1 ~ 0.1, 72.54 ~ 1.42)Current value (mA)50 ~ 850 Internal resistance (?)5.1 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Blind Spot Detection Switch Repair procedures


Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel. (Refer to the BD group - "Crash pad") 3. Remove the crash pad side switch assembly (A) as shown below picture.     Wear globes to protect hands from injury. 4. Remove the crash pad lower switch assembly ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation


Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components. Modifications to the combustion chamber, intake manifold, camshaft and ignition system form the basic control system. These items have been integrated into ...

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