AT1–3 AT340E (2JZ–GE) AUTOMATIC TRANSMISSION – OPERATION COMPONENT | FUNCTION 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 coiunterclockwise B₀ C₀ F₀ O/D Input Shaft O/D Planetary Gear Unit Input Shaft C₁ C₂ B₁ F₁ B₂ B₃ F₂ Front Planetary Gear Unit Rear Planetary Gear Unit Output Shaft AT8024