Kia Sportage: Automatic Transaxle Control System / 26 Brake Control Solenoid Valve (26/B_VFS) Repair procedures

Kia Sportage QL (2015-2025) Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / 26 Brake Control Solenoid Valve (26/B_VFS) Repair procedures

Inspection

1.	Switch "OFF" ignition.

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 (5) and signal terminal (11).

Specification : 5.3 ± 0.3 Ω

Removal

•	Maintain clean condition so that foreign substance does not get into the automatic transaxle.

•	Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.

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 a new one. (Do not reuse it.)

•	ATF can be reused. Collect it in a clean beaker.

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 main harness module (A) 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) after loosening the bolts.

Tightening torque:

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Remove the solenoid valve fixing pin (B) and loosen the valve body mounting bolt (A).

Tightening torque:

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

10.	Remove the 26 brake control solenoid valve (A).

Installation

Install in the reverse order of removal.

•	Check the code (oil pressure characteristics value) at the first before installing the solenoid valve.

•	The existing valve body cover gasket (A) must be replaced with a new one. (Do not reuse it.)

Perform the procedures below after installing.

(1)	Refill the automatic transaxle with fluid. (Refer to Hydraulic System - "Fluid")

(2)	Clear the diagnostic trouble codes (DTC) using the KDS/GDS. Disconnecting the battery negative terminal will not clear the DTCs. Clear DTCs using the KDS/GDS at all times.

(3)	Reset the automatic transaxle adaptive values using the KDS/GDS.

(4)	Perform the oil pressure characteristics input procedure using the KDS/GDS.

(5)	Perform the TCM adaptive values learning procedure. (Refer to Automatic Transaxle Control System - "Adjustment")

(6)	After installing, check for leakage of coolant or fluid from hose connection during engine start.

26 Brake Control Solenoid Valve (26/B_VFS) Schematic diagrams

Circuit Diagram ...

Underdrive Brake Control Solenoid Valve (UD/B_VFS) Specifications

Specification Item Specification Control type N/H (Normal High) Control pressure (kpa (kgf/cm², psi)) ...

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