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.

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