SsangYong Stavic / SsangYong Rodius (2005 year). Manual - part 303

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DC 5-SPEED AUTOMATIC TRANSMISSION

STAVIC - 2004.09

4A

Shift Pressure Control Solenoid Valve

1. Leaf spring

2. Contact spring

3. Conductor track

4. O-ring

5. O-ring

6. Shift plate

7. Solenoid valve

A. 1-2, 4-5 shift solenoid valve

B. 3-4 shift solenoid valve

8. Solenoid valve

C. Shift pressure control solenoid valve

D. Modulating pressure control solenoid valve

9. Solenoid valve

E. Lockup PWM solenoid valve

F. 2-3 shift solenoid valve

Function

The plastic Electric Hydraulic Control Unit (EHU) is installed on the top of valve body. RPM sensor, start lock-out switch
and oil temperature sensors are integrated in EHU.

The 13-pin connector is connected to automatic transmission via PCB.

Three up/downshift solenoid valves are installed on the top of hydraulic control unit.

The solenoid valves are sealed with two O-rings against the valve body. The solenoid valves are pressed against the valve
body by the leaf springs.

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DC 5-SPEED AUTOMATIC TRANSMISSION

STAVIC - 2004.09

4A

Circuit diagram

I (Current)

2.5A

1.5A

60mA

T (Time)

Characteristics of up/downshift solenoid valve

The solenoid valve remains energized and therefore open until
the shift process is completed according to the engine and
transmission conditions. If a solenoid valve is energized, it
opens and transmits shift valve pressure to the corresponding
command valve.

Working Current

Operating distance

Resistance

1.5 ~ 2.0 A

0.2 mm

3.8 ± 0.2 

Ω (25°C)

3-4 shift S/V

1-2, 4-5 shift S/V

2-3 shift S/V

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DC 5-SPEED AUTOMATIC TRANSMISSION

STAVIC - 2004.09

4A

Modulating Pressure (MP) and Shift Pressure (SP) Control Solenoid Valve

Solenoid valve

Regulated

pressure

Drain line

Drain line

Regulated pressure

Line pressure

1. Leaf spring

2. Shift plate

3. Strainer

4. MP control solenoid valve

5. SP control solenoid valve

Working Current

Operating distance

Resistance

0 ~ 1.0 A

0.6 mm

5 ± 0.2 

Ω (25°C)

Function

These valves control the modulating pressure and the shift
pressure by applying appropriate electric current to sole-
noid valves according to driving condition of engine and
transmission.

When the electric current from TCU is high/low, the regu-
lated pressure decreases/increases.

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DC 5-SPEED AUTOMATIC TRANSMISSION

STAVIC - 2004.09

4A

Circuit diagram