Fluid Pressure Directed in Preparation for TCC Apply

Located in the bottom channel plate, reverse fluid seats the #2 ball check valve against the 2345 fluid passage and directs fluid into the 2345 or reverse fluid passage.

The TCC PWM solenoid valve remains de-energized - OFF. 2345 or reverse fluid is prevented from entering the TCC signal fluid circuit. Under normal circumstances the TCC PWM solenoid valve is not energized. In the event the TCC PWM solenoid valve is energized - when engaging Reverse while driving in Forward above a certain speed, TCC signal fluid will shift the reverse lockout valve to block reverse fluid from entering the reverse lockout circuit and the reverse clutch and the low and reverse clutch will release to prevent damage to the transmission.