Specification |
Item |
Specification |
Control type |
N/H (Normal High) |
Control pressure (kpa (kgf/cm², psi)) |
0 - 1,569.06 (0 - 16, 0 - 227.57) |
Currency (mA) |
0 - 1,100 |
Coil resistance(Ω) |
5.3 ± 0.3 |
Description |
• |
Underdrive brake control solenoid valve is a Variable Force Solenoid (VFS) type. |
• |
When TCM supplies variable current to solenoid valve, hydraulic pressure of underdrive brake is controlled by solenoid valve.
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Underdrive brake control solenoid valve operation table
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UD/B_VFS |
N/H |
|
N, P |
● |
1 |
|
2 |
|
3 |
|
4 |
|
5 |
● |
6 |
● |
R |
● |
● : Connected status
Component Location |
1. Valve Body Cover |
8. SS-A ON/OFF Solenoid Valve
|
2. Valve Body Gasket |
9. Torque Converter Control Solenoid
Valve |
3. Main Harness |
10. Line Pressure Control Solenoid
Valve |
4. 26 Brake Control Solenoid
Valve |
11. Support Bracket |
5. 35R Clutch Control Solenoid
Valve |
12. Support Bracket |
6. Underdrive Brake Control Solenoid
Valve |
|
7. Overdrive Clutch Control Solenoid
Valve |
Inspection |
1. |
The automatic transaxle system can be more quickly diagnosed for troubles by using the vehicle diagnostic system (KDS). KDS provides the following information.
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Component inspection |
1. |
Switch "OFF" ignition. |
2. |
Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air cleaner") |
3. |
Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") |
4. |
Disconnect the solenoid valve connector (A).
|
5. |
Measure the resistance between power terminal (5) and signal terminal (16).
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Removal |
|
1. |
Remove the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover") |
2. |
Remove the ATF drain plug (A), allow the fluid to drain out and then reinstall the drain plug.
|
3. |
Remove the air duct and air cleaner assembly. (Refer to Engine Mechanical System - "Air cleaner") |
4. |
Remove the fixing clip (A) and the air breather hose (B).
|
5. |
Separate the ATF cooler hose (A).
|
6. |
Lift the vehicle after loosening valve body cover upper bolts. |
7. |
Remove the valve body cover (A) by loosening bolts.
|
8. |
Remove the main harness (A) after removing the bolts.
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9. |
Remove solenoid valve support bracket (A) after loosening the bolts.
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10. |
Remove the solenoid valve fixing pin (A) and loosen the valve body mounting bolt (B).
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11. |
Remove the underdrive brake control solenoid valve (A).
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Installation |
1. |
Install in the reverse order of removal.
|
2. |
Perform the procedures below after installing.
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