For a view of the oil flow diagrams, refer to the 1996 TURM manual.

Use the Manual 3-2 downshift in order to provide increased engine braking over Manual Third. Move the shift selector from the Manual Third position to the Manual Second position. You can select Manual Second at any vehicle speed or from any gear range in order to downshift the transmission into second gear.

Manual Valve: In the Manual Second range, line pressure which turns into D21 is directed to the 2-3 shift valve. The manual valve shuts off PRND4 fluid pressure to the Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Sw.) Assembly. The manual valve also shuts off PRND43 fluid pressure in order to assist the front servo spring. This allows the front band to apply.

Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Sw.) Assembly: The PRND43 pressure is shut off from the manual valve. This shuts off the electrical signal to the PCM.

1-2 Shift Solenoid (1-2 SS) Valve: When the 1-2 SS valve is de-energized, signal A pressure exhausts through the solenoid. This allows spring force to move the 1-2 shift valve to the extreme right.

2-3 Shift Solenoid (2-3 SS) Valve: When the 2-3 SS valve is de-energized, signal B pressure exhausts through the solenoid. This forces the 2-3 shift valve to the extreme right by spring force and by D21 fluid pressure from the manual valve.

1-2 Shift Valve: Spring force holds the 1-2 Shift Valve to the extreme right. Drive fluid pressure from the manual valve is changed into the 2-3 drive fluid pressure at the 1-2 shift valve. This pressure is directed to the 2-3 shift valve, the TCC PWM solenoid valve, and the intermediate (second) clutch.

2-3 Shift Valve: Spring force and the D21 fluid pressure from the manual valve hold the 2-3 Shift Valve to the extreme right. The 2-3 drive pressure from the 1-2 shift valve changes into Front Band Apply (FBA) and is directed to the front servo.

3-4 Shift Valve: Spring force holds the 3-4 shift valve to the extreme right.

Front Servo: Front Band Apply (FBA) fluid pressure from the 2-3 shift valve seats the #3 checkball. This causes the fluid to flow through an orifice and into the front servo piston housing, which applies the front servo and band.

Forward Clutch: The forward clutch is applied by Drive fluid pressure from the manual valve.

Intermediate (Second) Clutch: The Intermediate (Second) Clutch is applied by second fluid pressure from the 1-2 shift valve. The 2-3 drive fluid pressure from the 1-2 shift valve seats the #4 checkball in the case, causing the fluid to flow through two orifices. The 2-3 drive fluid pressure changes to Second apply fluid pressure at the orifices. The Second apply fluid flows into the center support, which applies the intermediate (second) clutch.

Overrun Clutch: The D321 fluid pressure from the manual valve seats the #1 checkball in the case. This causes the fluid to flow through an orifice, where the D321 fluid pressure changes into overrun fluid pressure. The overrun fluid pressure flows through the case and the pump housing, and into the overrun clutch housing, which applies the overrun clutch. The overdrive roller clutch becomes ineffective and provides vehicle engine compression braking.