Torque Converter Clutch Does Not Disengage

Torque converter clutch does not disengage

Shift solenoid valve D defective

A/T clutch pressure control solenoid valve A defective

Torque converter clutch piston defective

Lock-up shift valve defective

Lock-up control valve defective

Notes

Check for a stored DTC, and check for loose connections.

Notes

Test the solenoid valve function with the HDS.

Notes

Inspect the A/T clutch pressure control solenoid valve body gasket, ATF feed pipes, and O-rings for wear and damage.

Notes

Inspect the O-rings, and check the shift solenoid valve for seizure.

Notes

Replace the torque converter assembly.

Notes

Check the lock-up shift valve in the regulator valve body for free movement, and check the valve spring for wear and damage.

Notes

Check the lock-up control valve in the main valve body for free movement, and check the valve spring for wear and damage.