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

Kia Cadenza YG 2016-2025 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).

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")

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")

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.

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)

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)

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)

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

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.

Torque Converter Control Solenoid Valve (T/CON_VFS) Schematic Diagrams

Circuit Diagram ...

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