LS430 − OUTLINE OF NEW FEATURES 7 8. Differential The differential type has been changed from F20SZ to F21SF. For details, see page 62. 9. Suspension 2 10. Brake 11. Tire Pressure Warning System A tire pressure warning system has been adopted as standard equipment. For details, see page 88. 12. Steering 13. Multiplex Communication In the multiplex communication on the ’04 LS430, CAN (Controller Area Network) has been added with the BEAN (Body Electronics Area Network) and AVC-LAN (Audio Visual Communication − Local Area Network). For details, see page 100.
Item Outline Front and Rear Suspension Shock Absorber The construction of the shock absorber has been changed from the twin-tube type to a mono-tube type. Electronically Modulated Air Suspension [See page 66] System Diagram CAN (Controller Area Network) communication has been adopted. Front Left Acceleration Sensor The front left acceleration sensor has been included to the air suspension ECU. Diagnosis Along with the adoption of CAN communication, DTC (Diagnostic Trouble Codes) have been partially changed, and the some DTC of the input signal check have been discontinued.
Item Outline Master Cylinder To improve the feel when depressing the brake pedal, the diameter of the master cylinder has been increased from 22.22 mm (0.87 in.) to 23.81 mm (0.94 in.). Brake Control System (ABS with EBD) The brake actuator made compact and lightweight. Brake Control Syst em (ABS with EBD, Brake Assist, TRAC, VSC) [See page 69] System Diagram CAN communication has been adopted. Brake Actuator The brake actuator has been changed to the new construction, and integrated with the skid control ECU. Diagnosis Some DTC (Diagnostic Trouble Codes) have been added and some discontinued. Item Outline Steering Gear The gear ratio and number of turns lock to lock have been changed.
Gear Ratio: 15.7 16.4 No. of turns lock to lock: 3.53 3.57 Vehicle Speed Sensing Type Progressive Power Steering [See page 94] Due to the integration of the skid control ECU and the brake actuator, the power steering ECU, which was previously enclosed in the skid control ECU, is now separate. DTC (Diagnostic Trouble Codes) have been discontinued. Electric Steering Lock System [See page 96] The electric steering lock system has been provided in the model with smart key system.