LS430 − OUTLINE OF NEW FEATURES 13 Dynamic Laser Cruise Control System The following changes have been made to the dynamic laser cruise control system. For details, see page 184. 2 Service Tip The diagnosis communication has been changed from serial communication to CAN communication. As a result, a dedicated adapter [CAN-VIM (Vehicle Interface Module)] must be attached to the conventional hand-held tester in order to read the DTC of the ECM. For details, see the 2004 LEXUS LS430 Repair Manual (Pub. No. RM1048U). 26. Climate Control Seat (for Rear Seat) Climate control, which is used in the front seats, is now available as optional equipment in the rear seats. For details, see page 195.
Item Outline System Diagram The system circuits have been changed along with the adoption of CAN (Controller Area Network). Laser Sensor The beam axis adjustment, which was previously performed with the adjustment bolt, can now be performed with a hand-held tester. For details, see the 2004 LEXUS LS430 Repair Manual (Pub. No. RM1048U). System Control Constant Speed Control Mode The changes are the same as in the conventional cruise control system. Vehicle-to-Vehicle Distance Control Mode The vehicle speed setting range has been changed. U.S.A.: 28 − 85 mph 27 − 87 mph Canada:
45 − 135 km/h 43 − 137 km/h To ensure smooth deceleration, the deceleration control at the shift control of the automatic transmission has been discontinued. Setting the vehicle speed with the ACC switch and the COAST switch controls have been changed. U.S.A.: Approx. 1 mph Approx. 5 mph Canada: Approx. 1.6 km/h Approx. 5 km/h Warning Function The warning message when the laser sensor is dirty has been changed from “CLEAN LASER SENSOR” to “Clean Radar Sensor”. Diagnosis DTC (Diagnostic Trouble Codes) have been changed due to the adoption of CAN (Controller Area Network).