SSANGYONG KYRON 2005.10 Manual page 71

F. OIL TEMPERATURE SENSOR
The oil temperature sensor is installed in hydraulic control unit and is connected in series with
the starter lock-out contact.
This means that the temperature signal is transferred to TCU when the starter lock-out
contact is closed.
The oil temperature has a considerable effect on the shifting time and therefore the shift
quality. By measuring the oil temperature, shift operations can be optimized in all temperature
ranges.
G. SPEED SENSOR
The speed sensors are fixed to the shell of the hydraulic control unit via the contact tabs. A
leaf spring, which rests against the valve body, presses the
speed sensors against the transmission housing.
This ensures a precise distance between speed sensors and impulse rings. speed sensor
(n3) detects the speed of the front sun gear and speed sensor (n2) detects the speed of the
front planetary carrier.
If the speed sensor is defective, the transmission is operated in emergency driving mode.
Below table shows the detection of speed sensor.
H. LOCKUP SOLENOID VALVE
This valve activates and releases the lockup clutch by adjusting the current to solenoid valve
according to engine throttle opening value and output shaft speed. The lockup clutch
operates in 3rd, 4th and 5th gear with steps to reduce shift shocks.
I. MODULATING PRESSURE (MP) AND SHIFT PRESSURE (SP) CONTROL SOLENOID VALVE
These valves control the modulating pressure and the shift pressure by applying appropriate
electric current to solenoid valves according to driving condition of engine and transmission.
When the electric current from TCU is high/low, the regulated pressure decreases /
increases.
J. 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.
0-17
3110-01
CIRCUIT
KYRON 2005.10