Torque Converter Clutch Solenoid: Service and Repair

SOLENOID VALVE

DESCRIPTION
TCM calculates the best condition using the information from all kinds of sensors. If the solenoid valve receives the information on the oil pressure, the solenoid valve actuates according to the driving signal. All kinds of regulators in the valve body are controlled to change the oil passage and also the line pressure is controlled by TCM.





PWM (Pulse Width Modulation) SOLENOID VALVE
Structure and functions
PWM solenoid valve is composed of five solenoid valves and the oil capacity in the solenoid valve is changed by the electric duty value of TCM. The oil pressure of the valve body and the torque converter engages or disengages the damper clutch. The solenoid valves send the operating oil pressure to the clutches and brakes at the each range and also control the strength and weakness of oil pressure to reduce the shock when shifting the range.

PWM (PULSE WIDTH MODULATION) SOLENOID:

PWM (PULSE WIDTH MODULATION) SOLENOID VALVE CONTROL FEATURE:

PWM solenoid valve is controlled linearly according to the duty ratio.





REMOVAL
1. Remove the battery terminal.
2. Lift the vehicle.
3. Remove the under cover.
4. Loosen the drain plug and drain the transaxle oil.
5. Remove the oil pan.
6. Remove the oil filter.
7. Remove the valve body.
8. Disconnect the main harness (A) from valve body.





9. Remove the solenoid valve assembly (A).





INSTALLATION
1. Install the solenoid valve.

CAUTION: Apply the ATF oil or White Vaseline to the O-ring not to be damaged.

2. Connect the solenoid valve connector to the valve body.

CAUTION: When connecting the solenoid valve connector, check the connector for rust, dirt, or oil, then reconnect it.

3. Install the valve body.
TORQUE: 10-12 Nm (1.0-1.2 kgf.m, 7-8 lb-ft)
4. Install the oil filter.
TORQUE: 10-12 Nm (1.0-1.2 kgf.m, 7-8 lb-ft)
5. Continue to apply liquid gasket at application points at the oil pan with 02.5 mm (0.098 in) thickness.





6. Tighten the mounting bolt with the specified torque after installing the oil pan.
TORQUE: 10-12 Nm (1.0-1.2 kgf.m, 7-8 lb-ft)
7. Install the drain plug.
TORQUE: 35-45 Nm (3.5-4.5 kgf.m, 25-32 lb-ft)
8. Installation is the reverse of the removal.