LS430 − NEW FEATURES 19 3) Input Speed Sensor and Output Speed Sensor The A761E automatic transmission uses an input speed sensor (for NT signal) and output speed sensor (for SP2 signal). Thus, the ECM can detect the timing of the shifting of the gears and appropriately control the engine torque and hydraulic pressure in response to the various conditions. These speed sensors are the pick-up coil type. The input speed sensor detects the input speed of the transmission. The C 3 clutch drum is used as the timing rotor for this sensor. The output speed sensor detects the speed of the output shaft. The parking gear on the rear planetary gear is used as the timing rotor for this sensor.
Input Speed Sensor (NT) Parking Gear (Timing Rotor) Output Speed Sensor (SP2) C 3 Clutch Drum (Timing Rotor) 259LSK22