Hydraulic Control System; Data Link Connector (Dlc) - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

3A2-10

Data Link Connector (DLC)

The Data Link Connector (DLC) is a multiple cavity
connector. The DLC provides the means to access the
serial data from the TCM.
The DLC allows the technician to use a scan tool to moni-
tor the various systems and display the Diagnostic Trouble
Codes (DTCs).
The DLC connector is located within the driver's
compartment, directly below the instrument panel on the
driver's side.

HYDRAULIC CONTROL SYSTEM

The hydraulic controls are located in the valve body, pump
body and main case.
The valve body contains the following;
• Manual valve
• Three shift valves
• Sequence valve
• Solenoid supply pressure regulator valve
• Line pressure control valve
• Clutch apply feed regulator valve
• Band apply feed regulator valve
• Solenoid S1 to S6
• Reverse lockout valve
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
The pump cover contains the following;
• Primary regulator valve for line pressure
• Converter clutch regulator valve
• Converter clutch control valve
• Solenoid S7
The main case contains the following;
• B1R exhaust valve
All upshifts are accomplished by simultaneously switch-
ing on a shift valve(s), switching VPS pressure to the band
and/or clutch regulator valve, and then sending the VPS a
ramped current. The shift is completed by switching the
regulators OFF and at the same time causing the VPS to
reach maximum pressure.
All downshifts are accomplished by switching VPS pres-
sure to the band and/or clutch regulator valve and send-
ing a ramped current to the VPS. The shift is completed
by simultaneously switching the regulators OFF, switch-
ing the shift valves and at the same time causing the VPS
to return to stand-by pressure.
The primary regulator valve is located in the pump cover
and supplies four line pressures; high and low for forward
gears, and high and low for reverse. This pressure has no
A103A321
effect on shift quality and merely provides static clutch
capacity during steady state operation. Low pressure can
be obtained by activating an ON/OFF solenoid with high
line pressure being the default mode.
Torque converter lock-up is initiated by toggling the con-
verter clutch control valve with an ON/OFF solenoid.
The actual apply and release of the clutch is regulated by
the VPS via the converter clutch regulator valve.
The solenoid supply pressure regulator valve provides ref-
erence pressure for all the solenoids.
BTRA 4 AUTO TRANSMISSION
REXTON SM - 2004.4