No Lock-up

Shift solenoid valve E is turned OFF by the PCM, and shift solenoid valve E pressure (SE) is not applied to the lock-up shift valve. The lock-up shift valve stays to the right to uncover the torque converter pressure ports leading to the left side of the torque converter and releasing pressure from the right side of the torque converter. Torque converter pressure (92) changes to (94) at the lock-up shift valve, and enters into the left side of the torque converter to disengage the torque converter clutch. This keeps the torque converter clutch piston is kept away from the torque converter cover and the torque converter clutch lock-up is OFF.

Fig 1: Hydraulic Circuit - No Lock Up

Courtesy of AMERICAN HONDA MOTOR CO., INC.