Kia Sportage: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve (UD/B_VFS) Repair procedures
| 1. |
Switch "OFF" ignition.
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| 2. |
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
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| 3. |
Disconnect the solenoid valve connector (A).
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| 4. |
Measure the resistance between power terminal (5) and signal terminal
(16).
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Specification : 5.3 ± 0.3 Ω
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| • |
Maintain clean condition so that foreign substance does not
get into the automatic transaxle.
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| • |
Use a coated apron, latex gloves, and stainless tray to prevent
foreign substance from getting into the transaxle.
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| 1. |
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover").
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| 2. |
Remove the ATF drain plug (A), allow the fluid to drain out and then
reinstall the drain plug.
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Tightening torque:
33.3 - 43.1 N·m (3.4 - 4.4 kgf·m, 24.6 - 31.8 lb·ft)
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| •
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The existing ATF drain plug gasket must be replaced
with a new one. (Do not reuse it.)
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| •
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ATF can be reused. Collect it in a clean beaker.
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| 3. |
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
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| 4. |
Remove the wiring bracket (A) and the air breather hose (B).
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Tightening torque:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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| 5. |
Lift the vehicle after loosening valve body cover upper bolts.
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| 6. |
Remove the valve body cover (A) by loosening bolts.
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Tightening torque:
11.8 - 13.7 N·m (1.2 - 1.4 kgf·m, 8.7 - 10.1 lb·ft)
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| 7. |
Remove the main harness module (A) after removing the bolts.
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Tightening torque:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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| 8. |
Remove solenoid valve support bracket (A) after loosening the bolts.
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Tightening torque:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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| 9. |
Remove the solenoid valve fixing pin (A) and loosen the valve body mounting
bolt (B).
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Tightening torque:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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| 10. |
Remove the underdrive brake control solenoid valve (A).
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| 1. |
Install in the reverse order of removal.
| •
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Check the code (oil pressure characteristics value)
at the first before installing the solenoid valve.
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| •
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The existing valve body cover gasket (A) must be replaced
with a new one. (Do not reuse it.)
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| 2. |
Perform the procedures below after installing.
| (1) |
Refill the automatic transaxle with fluid.
(Refer to Hydraulic System - "Fluid")
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| (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.
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| (3) |
Reset the automatic transaxle adaptive values using the KDS/GDS.
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| (4) |
Perform the oil pressure characteristics input procedure using
the KDS/GDS.
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| (5) |
Perform the TCM adaptive values learning procedure.
(Refer to Automatic Transaxle Control System - "Adjustment")
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| (6) |
After installing, check for leakage of coolant or fluid from
hose connection during engine start.
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Specification
Item
Specification
Control type
N/H (Normal High)
Control pressure (kpa (kgf/cm², psi))
...
Other information:
Components
[NON-EPB Type]
1. Rear brake disc
2. Rear hub assembly
3. Dust cover
4. Rear carrier assembly
[EPB Type]
1. Parking brake assembly
2. Rear hub assembly
3. Dust cover
4. Rear ...
Description
The components of the hydraulic system
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Automatic Transaxle Fluid (ATF)
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Oil pump
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Oil filter
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Valve body
Operation
...
Underdrive Brake Control Solenoid Valve (UD/B_VFS) Schematic diagrams
Overdrive Clutch Control Solenoid Valve (OD/C_VFS) Specifications