Kia Cadenza YG: Automatic Transaxle Control System / Torque Converter Control Solenoid Valve (T/CON_VFS) Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Torque Converter Control Solenoid Valve (T/CON_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 the resistance between power terminal (10) and signal terminal (2).
Specification : 5.1 ± 0.3 Ω

Removal
1.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
2.
Remove the ATF drain plug (A), allow the fluid to drain out and then reinstall the drain plug.
Tightening torque:
33.3 ~ 43.1 N.m (3.4 ~ 4.4 kgf.m, 24.6 ~ 31.8 lb-ft)

   
The existing ATF drain plug gasket must be replaced with new one. (Do not reuse it.)
3.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
4.
Remove the wiring bracket (A) and the air breather hose (B).
Tightening torque:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

5.
Lift the vehicle after loosening valve body cover upper bolts.
6.
Remove the valve body cover (A) by loosening bolts.
Tightening torque:
11.8 ~ 13.7 N.m (1.2 ~ 1.4 kgf.m, 8.7 ~ 10.1 lb-ft)

7.
Remove the solenoid valve harness (A) and oil temperature sensor (B) after removing the bolts.
Tightening torque:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

8.
Remove solenoid valve support bracket (A).
Tightening torque:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

9.
Remove the torque converter control solenoid valve (B) after loosening the bolt (A).
Tightening torque:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

Installation
1.
Install in the reverse order of removal.
   
•
The existing valve body cover gasket (A) must be replaced with new one. (Do not reuse it.)

•
Perform the procedures below after replacing the solenoid valve.
1)
Refill the automatic transaxle with fluid.
(Refer to Hydraulic System - "Fluid")
2)
Reset the automatic transaxle adaptive values using the GDS.

3)
Perform the TCM adaptive values learning procedure.
(Refer to Automatic Transaxle Control System - "Repair procedures")
4)
Confirm that there is no fluid leakage on connections after repairing.

    Circuit Diagram

    Specification Item SpecificationControl typeN/H (Normal High)Control pressure kpa (kgf/cm², psi)"500.14 ~ 9.81 (5.1 ~ 0.1, 72.54 ~ 1.42)"Current value (mA)50 ~ 850Coil resistance(Ω)5.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Specifications

    S

    Kia Cadenza YG 2016-2021 Service Manual: Mode Control Actuator Repair procedures

    Inspection 1. Ignition "OFF” 2. Disconnect the connector of mode control actuator. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to the terminal 3and grounding terminal 7. 4. Verify that the mode control actuator operates to the vent mode when connecting in the reverse.

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