Kia Sportage: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve (UD/B_VFS) Description and operation
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Underdrive brake control solenoid valve is a Variable Force Solenoid
(VFS) type.
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| • |
When TCM supplies variable current to solenoid valve, hydraulic pressure
of underdrive brake is controlled by solenoid valve.

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Underdrive brake control solenoid valve operation table
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UD/B_VFS
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N/H
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N, P
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●
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1
|
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2
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3
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4
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5
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●
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6
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●
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R
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●
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● : Connected status
Component Location
1. 26 Brake Control Solenoid
Valve (26/B)
2. 35R Clutch Control Solenoid Valve (35R/C)
3. Underdrive Brake Control Solenoid Valve (UD/B)
...
Other information:
Inspection
•
When removing with a flat-tip screwdriver or remover, wrap protective
tape around the tools to prevent damage to components.
•
...
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the evaporator temperature sensor connector.
3.
Measure resistance between terminals “+” and “-” of the evaporator temperature
sensor. ...