AUTOMATIC TRANSMISSION SYSTEM


  1. OUTLINE


    1. The A750F 5-speed Electronic Control Transmission (ECT) is used on the models with 1GR-FE engine.

    2. A gate type shift lever is used.

    3. A multi-mode automatic transmission is used.

    4. A shift pattern select system is used.

    5. In addition to the water-cooled type ATF cooler, an ATF warmer is used in the ATF cooling system.

  2. SPECIFICATION

    Automatic Transmission Assembly
    Control ECU ECM
    Gear Ratio 1st 3.520
    2nd 2.042
    3rd 1.400
    4th 1.000
    5th 0.716
    Reverse 3.224
    ATF Cooling System ATF Warmer and Water-cooled Type ATF Cooler
    Fluid Type Toyota Genuine ATF WS
    Fluid Capacity 10.9 Liters (11.5 US qts, 9.6 Imp. qts)
    Weight (Reference)* 86.9 kg (191.6 lb)

    Tech Tips

    *: Weight shows the figure with the fluid fully filled.

    Planetary Gears
    Compound Gear Unit Front Planetary Gear Assembly No. of Sun Gear Teeth 40
    No. of Pinion Gear Teeth Inner 22
    Outer 21
    No. of Ring Gear Teeth 91
    Center Planetary Gear Assembly No. of Sun Gear Teeth 31
    No. of Pinion Gear Teeth 23
    No. of Ring Gear Teeth 77
    Rear Planetary Gear Assembly No. of Sun Gear Teeth 25
    No. of Pinion Gear Teeth 19
    No. of Ring Gear Teeth 63
    Friction Engagement Components and 1-way Clutch

    No. 1 Clutch (C1)

    		 No. of Discs 6

    No. 2 Clutch (C2)

    		 5

    No. 3 Clutch (C3)

    		 5

    No. 1 Brake (B1)

    		 3

    No. 2 Brake (B2)

    		 3

    No. 3 Brake (B3)

    		 4

    No. 4 Brake (B4)

    		 8

    No. 1 1-way Clutch (F1)

    		 No. of Sprags 18

    No. 2 1-way Clutch (F2)

    		 25

    No. 3 1-way Clutch (F3)

    		 26
    Torque Converter Assembly
    Torque Converter Type 3-element, 1-step, 2-phase
    Stall Torque Ratio 1.850