Kia Stinger CK Quiz
Automatic Transmission System

UD Clutch Control Solenoid Valve (UD/C_VFS)

In this manual: Automatic Transmission System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
14steps
~84min
3/5difficulty
0102030405024.518N·mlb·ft
Tightening torque found on this page
Done 0 of 14

Specifications

Specifications

Item Specification
Control Type N/L (Normally Low)
Control Pressure kPa (kgf/cm², psi) 0–1 569,06 (0–16, 0–227,57)
Current (mA) 0 - 1100
Coil Resistance (Ω) 5,3 ± 0,3

Components and Component Location

Component Location

1. UD Clutch Control Solenoid Valve 2. Solenoid Valve Support Bracket

Description and Operation

Description

  • The UD clutch control solenoid valve is a variable force solenoid (VFS) valve.

  • When the TCM supplies current to the solenoid valve, the 4&OD clutch hydraulic pressure is controlled directly by the solenoid valve.

Solenoid Valve Operation Table

Solenoid valve Grab
UD/C_VFS UD/C
P
N
1 ● ●
2 ● ●
3 ● ●
4 ● ●
5
6
7
8
REV

Circuit Diagrams

Wiring Diagram

Repair Procedures

Inspection

  1. Turn the ignition switch OFF.

  2. Disconnect the main connector (A).

  3. Measure the resistance between the power terminal (22) and the signal terminal (28).

    Specification: 5.3 ± 0.3 Ω

Removal

  1. Remove the under cover.

    (Refer to Engine Mechanical System - "Under Hood Compartment").

  2. Remove the ATF drain plug (A), allow the fluid to drain, and then reinstall the drain plug.

    Tightening torque: 22.6–24 N·m

  3. Disconnect the main connector (A).

  4. Remove the valve body cover.

    1. Loosen all valve body bolts except the bolts (A) at the corner.

      Tightening torque: 13.7 - 15.7 N·m

    2. Loosen the two bolts (A) at the corner. After supporting the valve body cover with a jack, remove the valve body cover by lowering the jack slowly.

  5. Remove the valve body (A) after loosening the bolts.

    Tightening Torque: 9.8–11.8 N·m

  6. Remove the electronic module (A) after loosening the bolts.

    Tightening Torque: 9.8–11.8 N·m

  7. Remove the solenoid valve support bracket (A).

    Tightening torque: 11.8–13.7 N·m

  8. Remove the pin (A).

  9. Remove the UD clutch control solenoid valve (A).

Installation

  1. Install in the reverse order of removal.

  2. After installation, perform the procedures described below.

    1. Fill the automatic transmission with fluid.

      (Refer to Hydraulic System - "Fluid")

    2. Erase the diagnostic trouble codes (DTCs) using the KDS. Disconnecting the negative battery terminal will not erase DTCs. Always use the KDS to erase trouble codes.

    3. Reset the automatic transmission adaptive values using the KDS.

    4. Perform the oil pressure characteristic entry procedure using the KDS.

      (Refer to Hydraulic System - "Oil Pressure Characteristic Entry")

    5. Perform the TCM adaptive value learning procedure.

      (Refer to Automatic Transmission Control System - "Repair Procedures")

    6. After installation, check for fluid leaks from the hose connection while starting the engine.

Test yourself

A quick Kia Stinger CK quiz: every answer comes with an explanation and a link to the manual page.