Power Flow - Park And Neutral; Control - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

Power flow - Park and neutral

In Park and Neutral, there is no drive to the planetary gear
set. The rear band is applied to eliminate 'clunk' on en-
gagement of the reverse gear, and to improve the low range
engagement for 4WD applications. No other clutches or
bands are applied.
In Park the transmission is mechanically locked by en-
gaging a case mounted pawl with teeth on the output shaft
ring gear.

Control

To maintain this arrangement in the steady state sole-
noids and valves are activated as follows:
• Solenoids S1 and S2 are switched OFF.
Gear State
Park and Neutral
BTRA 4 AUTO TRANSMISSION
REXTON SM - 2004.4
C1 C2 C3
- - -
• Line (pump) pressure is applied to the Primary Regu-
lator Valve (PRV) and to the solenoid supply pressure
regulator valve.
• The converter, oil cooler, and lubrication circuits are
charged from the primary regulator valve.
• The line 500 circuit is charged by the solenoid supply
pressure regulator valve.
• The S5 circuit is charged by the variable pressure
solenoid (S5).
• Line pressure is prevented from entering the drive circuit
by the manual valve.
• The B1 circuit and all clutch circuits are open to ex-
haust.
ELEMENTS ENGAGED
C4 B1 B2
- - X
3A2-21
1-2 3-4 LU
OWC OWC CLUTCH
- - -
Y220_3A2320
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN