SSANGYONG KYRON 2010.01 Manual page 564

01-16
3410-01
8) Solenoids
The TCU controls seven solenoids. Solenoids 1 to 6 (S1 to S6) are mounted in the valve body,
while Solenoid 7 (S7) is mounted in the pump cover.
- Solenoid 1 and 2: S1 and S2 are normally open ON/ OFF solenoids that set the selected
gear. These solenoids determine static gear position by operating the shift valves. Note that
S1 and S2 solenoids also send signal pressure to allow or prohibit rear band engagement.
- Solenoid 3 and 4: S3 and S4 are normally open ON/ OFF solenoids that combine to control
shift quality and sequencing. S3 switches the clutch regulator valve OFF or ON. S4 switches
the front band regulator valve OFF or ON. S5 also provides the signal pressure for the
converter clutch regulator valve.
- Solenoid 5: S5 is a variable pressure solenoid that ramps the pressure during gear
changes. This solenoid provides the signal pressure to the clutch and band regulator,
thereby controlling the shift pressures.
S5 also provides the signal pressure for the converter clutch regulator valve.
- Solenoid 6: S6 is a normally open ON/OFF solenoid that sets the high/low level of line
pressure. Solenoid OFF gives high pressure.
- Solenoid 7: S7 is a normally open ON/OFF solenoid that controls the application of the
converter clutch.
Solenoid ON activates the clutch.
Solenoid Logic for Static Gear States
Gear S1
1st ON
2nd OFF
3rd OFF
4th ON
Reverse OFF
Neutral OFF
Park OFF
ION 4-SPEED
KYRON 2010.01
S2
ON
ON
OFF
OFF
OFF
OFF
OFF