Kia Carens: Automatic Transaxle Control System / Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures
| 1. |
Turn ignition switch OFF.
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| 2. |
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
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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 : 5.1 ± 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 air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
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| 4. |
Remove the 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 solenoid valve harness (A) and oil temperature sensor (B)
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).
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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 underdrive brake control solenoid valve (B) after loosening
a vlave body mounting bolt (A).
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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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| 1. |
Install in the reverse order of removal.
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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 TCM adaptive values learning procedure.
(Refer to Automatic Transaxle Control System - "Adjustment")
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| (5) |
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:
Description
•
Input speed sensor uses an electric current type hall sensor in which
the current is changed by the magnetic variation.
•
Input speed sensor (A) and output speed sensor are integrated and installed
in the tra ...
Specification
Pressure
[kPa (kgf/cm², psi)]
Output Voltage (V)
20.0 (0.20, 2.9)
0.79
46.7 (0.47, 6.77)
1.84
101.3 (1.03, 14.7)
4.0
...
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Schematic diagrams
Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Specifications