AUTOMATIC TRANSMISSION SYSTEM GENERAL

  1. OUTLINE

    1. The A343F 4-speed Electronic Control Transmission (ECT) is used on the models with 2TR-FE engine.

    2. A gate type shift lever is used.

    3. A shift pattern select system is used.

  2. SPECIFICATION

    Automatic Transmission Assembly
    Control ECU ECM
    Gear Ratio 1st 2.804
    2nd 1.531
    3rd 1.000
    4th 0.753
    Reverse 2.393
    Fluid Type Toyota Genuine ATF WS
    Fluid Capacity 9.9 Liters (10.5 US qts, 8.7 Imp. qts)
    Weight (Reference)* 79.9 kg (176.1 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 42
No. of Pinion Gear Teeth 19
No. of Ring Gear Teeth 79
Rear Planetary Gear Assembly No. of Sun Gear Teeth 33
No. of Pinion Gear Teeth 23
No. of Ring Gear Teeth 79
Overdrive Planetary Gear Assembly No. of Sun Gear Teeth 31
No. of Pinion Gear Teeth 32
No. of Ring Gear Teeth 95
Friction Engagement Components and 1-way Clutch

Overdrive Direct Clutch (C0)

 No. of Discs 2

Forward Clutch (C1)

 5

Direct Clutch (C2)

 3

Overdrive Brake (B0)

 3

2nd Coast Brake (B1)

 Band Width 40 mm (1.57 in.)

2nd Brake (B2)

 No. of Discs 5

1st and Reverse Brake (B3)

 6

Overdrive 1-way Clutch (F0)

 No. of Sprags 18

1-way Clutch Assembly (F1)

 28

No. 2 1-way Clutch (F2)

 20
Torque Converter Clutch Assembly
Torque Converter Clutch Type 3-element, 1-step, 2-phase
Stall Torque Ratio 1.900