Page text (OCR transcript)
AT-4
A340E (2JZ-GTE) AUTOMATIC TRANSMISSION - OPERATION
2. COMPONENTS FUNCTION
NOMENCLATURE | OPERATION
O/D Direct Clutch (C₀) | Connects overdrive sun gear and overdrive carrier
O/D Brake (B₀) | Prevents overdrive sun gear from turning either clockwise or counterclockwise
O/D One-Way Clutch (F₀) | When transmission is being driven by engine, connects overdrive sun gear and overdrive carrier
Forward Clutch (C₁) | Connects input shaft and front planetary ring gear
Direct Clutch (C₂) | Connects input shaft and front & rear planetary sun gear
2nd Coast Brake (B₁) | Prevents front & rear planetary sun gear from turning either clockwise or counterclockwise
2nd Brake (B₂) | Prevents outer race of F₁ from turning either clockwise or counterclockwise, thus preventing front & rear planetary sun gear from turning counterclockwise
1st & Reverse Brake (B₃) | Prevents rear planetary carrier from turning either clockwise or counterclockwise
No.1 One-Way Clutch (F₁) | When B₂ is operating, prevents front & rear planetary sun gear from turning counterclockwise
No.2 One-Way Clutch (F₂) | Prevents rear planetary carrier from turning counterclockwise
Intermediate Shaft
Front Planetary Carrier
Rear Planetary Carrier
B₀
F₀
B₂ B₃ F₂
C₀
O/D Planetary Carrier
C₁
F₁
O/D Input Shaft
C₂
O/D Sun Gear
Sun Gear
Output Shaft
O/D Planetary Ring Gear
B₁
Rear Planetary Ring Gear
Front Planetary Ring Gear
Input Shaft
Q02957
V02113
