Overdrive Clutch Applies

WARNING: This page is about a different variant/trim than selected.

Manual Valve:: Line pressure enters the 32 fluid circuit at the manual valve. 32 fluid is routed to the safety mode valve.
1-2 Shift Solenoid (SS) Valve:: The 1-2 SS valve is energized, allowing feed limit fluid to enter the 1-2 signal fluid circuit. 1-2 signal fluid is routed to the safety mode valve and to the 3-4 shift valve.
3-4 Shift Valve:: 1-2 signal fluid overcomes 3-4 shift valve spring force and moves the 3-4 shift valve to the applied position. This allows D432 fluid to enter the 123 fluid circuit, and allows direct clutch and 45 fluids to exhaust.
#4 Ball Check Valve:: 123 fluid seats the #4 ball check valve and passes through orifice #16 on the way to the 4-5 shift valve.
4-5 Shift Valve:: 123 fluid passes though the 4-5 shift valve (333) into the 123 braking fluid circuit.
Low Pressure Control Valve:: 123 braking fluid is regulated into the 123 regulated fluid circuit through the low pressure control valve (383).
1-2 Shift Valve:: 123 regulated fluid passes through the 1-2 shift valve into the 23 regulated fluid circuit.
#9 and #11 Ball Check Valve:: 23 regulated fluid seats the #9 and the #11 ball check valves and is forced through orifices #22 and #23.
2-3 Shift Valve:: 23 regulated fluid passes through the 2-3 shift valve into the overdrive clutch feed 1 fluid circuit.
#12 Ball Check Valve:: Overdrive clutch feed 1 fluid seats the #12 ball check valve against the overdrive clutch feed 2 passage and enters the overdrive clutch fluid circuit.
Overdrive Clutch:: Overdrive clutch fluid is then directed to the overdrive clutch piston to apply the overdrive clutch plates.