Hyundai Venue: Hydraulic System / Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Hyundai Venue (QX) (2020-2022) Service Manual / Automatic Transaxle System / Hydraulic System / Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Inspection
Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
Refer to the DTC manual for the check procedure.
Removal
Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
When the solenoid valve Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
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.
Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the air cleaner and air duct.
(1)
Remove the air duct (A).

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

(2)
Disconnect the breather hose (B) and air intake hose (C).
(3)
Remove the air cleaner assembly (D).
Tightening torque :
Hose clamp bolt (C):
2.9 - 4.9 N.m (0.3 - 0.5 kgf.m, 2.1 - 3.6 lb-ft)
Air cleaner assembly bolts (D) :
3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 Ib-ft)

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

3.
Discharge the automatic transaxle fluid (ATF).
(Refer to Automatic Transaxle Syatem - "Automatic Transaxle Fluid (ATF)")
4.
Disconnect the wiring fixing clip (A).
5.
Disconnect the air bleeder hose (B).

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

6.
Disconnect the ATF cooler hose (A).

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
Be careful not to cause any damage on the hose when tightening the clamp.
Mount the clamp tightening part in the designated direction so that interference does not occur with the adjacent parts.
After connecting the hose, check for oil leakage on the connecting part while the engine is on.
7.
Unscrew the bolts and remove the valve body cover (A).
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
When re-mounting the valve body cover, replace the gasket with a new one.
After mounting the valve body cover, check for oil leakage on the connecting part while the engine is on.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

8.
Unscrew the bolts and disconnect the solenoid valve connector (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

9.
Remove the support bracket (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

10.
Remove the roller (A) and bolt (B).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

11.
Remove the underdrive brake control solenoid valve (A).

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

Installation
Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
Note the value carefully and check the value again before assembly.
Inputting an invalid value (A) may cause the abnormal shifting shock while TCM learning.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

1.
To install, reverse the removal procedure.
2.
Inject the automatic transaxle oil and inspect the oil level.
(Refer to Automatic Transaxle System - "Automatic Transaxle Fluid (ATF)")
Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
1)
After ATF level check or exchange, be sure to remove residual ATF on transaxle case.
(Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)
2)
After installing the valve body cover, make sure to check the oil leakage at the connection area with the engine ON.
3.
Clear the diagnostic trouble codes (DTC) using the diagnostic tool.
Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures   
Even though disconnecting the battery negative terminal, the DTCs will not be cleared. So, be sure to clear the DTCs using the diagnostic tool.
4.
Reset the automatic transaxle adaptive values using the diagnostic tool.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

5.
Input the oil pressure characteristics using the diagnostic tool.
(1)
Select ‘Oil-pressure Characteristics (Solenoid Valve Replacement)’ in the S/W Management.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

(2)
Select the replaced solenoid valve.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

(3)
Check the code marked on the solenoid valve.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

(4)
If the code is inputted 2 times correctly, the procedure is completed.

Hyundai Venue. Underdrive Brake Control Solenoid Valve (UD/B_VFS). Repair procedures

6.
In order to prevent start delay and gear shift shock during acceleration and start, perform TCM learning after replacing the solenoid valve.
(Refer to Automatic Transaxle Control System - "Repair procedures")

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