Operation Check

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

INPUT SIGNAL CHECK (Using hand-held tester)
1. Connect the hand-held tester to the DLC3.
2. Check the cruise control main switch using the DATA LIST function in the hand-held tester (ON-OFF, CANCEL, SET/COAST, RES/ACC, and MODE).
  
  Fig 1: Checking Cruise Control Main Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT MODE SWITCH
1. Turn the ignition switch to the ON position.
  HINT:
  
  Dynamic laser cruise system is in the default mode.
2. After pushing the ON-OFF button on, push the cruise control main switch to MODE for at least 1 second without any other control. Make sure that only "NORM." and nothing else is indicated on the display.
  
  Fig 2: Inspecting Mode Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: When performing other operations (setting) after pushing the ON-OFF button on, the system cancels the constant speed control mode and cannot return to the mode again.
  
  HINT:
  
  If the system cannot switch to the constant speed control mode, push the ON-OFF button off once, and perform the same procedures as shown above. If a malfunction is still detected in the system, start the engine again and perform the above procedure.
  
  Fig 3: Indicating NORM Reading Display
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT STEERING PAD SWITCH ASSY
1. Turn the ignition switch to the ON position.
2. Push on the ON-OFF button of the cruise control main switch.
3. Push on the distance control switch (DISP2) of the steering pad switch.
4. Check that the indication of vehicle-to-vehicle distance, which is shown in the multi-information display on the combination meter, changes from "LONG", "MIDDLE" to "SHORT" in that order.
  
  Fig 4: Pushing Distance Control Switch (DISP2) Of Steering Pad Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  The indication is immediately set to "LONG" each time the engine is started.