SSANGYONG 1999 Musso Service Manual page 1005

5A-28 AUTOMATIC TRANSMISSION
Table 3.4 - Solenoid States and Functions
Solenoids 1 and 2
Solenoids 3 and 4
Solenoid 5
Solenoid 6
Solenoid 7
Table 3.5 - Solenoid Logic for Static Gear States
Gear
1st
2nd
3rd
4th
Reverse
Neutral
Park
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.
Refer to table 3.5. Note that S1 and S2 solenoids also send signal pres-
sure to allow or prohibit rear band engagement.
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 is a variable force 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.
S6 is a normally open On/off solenoid that sets the high/low level of line
pressure, Solenoid off gives high pressure.
S7 is a normally open On/off solenoid that controls the application of the
converter clutch. Solenoid on activates the clutch.
S1
ON
OFF
OFF
ON
OFF
OFF
OFF
S2
ON
ON
OFF
OFF
OFF
OFF
OFF