LS430 − NEW FEATURES 19 2 System Function ’04 LS430 ’03 LS430 A761E A650E AI (Artificial Intelligence) -SHIFT (See page 48) Based on the signals from various sensors, the ECM determines the road conditions and the intention of the driver. Thus, the shift pattern is automatically regulated to an optimal level, thus improving driveability. Orifice Switching Control (See page 50) The orifice switching control prevents the oil pump from drawing air during extremely low temperatures. — Multi-Mode Automatic Transmission (See page 51) The ECM appropriately controls the automatic transmission in accordance with the range position selected while the shift lever is in the S mode position.
— Vehicle lift Control To restrain the upward movement of the vehicle when the shift lever is moved from the D position to N, the clutch release speed has been optimized. Shift Down Control In order to ensure a smooth shift feel during downshifting to accelerate the vehicle, the hydraulic passages and control have been optimized. Diagnosis (See page 53) When the ECM detects a malfunction, the ECM makes a diagnosis and memorizes the failed section. Fail-safe (See page 53) Even if a malfunction is detected in the sensors or solenoids, the ECM effects fail-safe control to prevent the vehicle’s driveability from being affected significantly.