LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> GX 460 Base >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control System (Diagnostics - Introduction) >> Dynamic Radar Cruise Control System >> Operation Check [08/2015 - 08/2019] >> Operation Check [08/2015 - 08/2019]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Operation Check [08/2015 - 08/2019]

  1. INPUT SIGNAL CHECK 
    Fig 1: Cruise Control Switch (On-Off, Cancel, -Set, +Res And Mode)
    GTY685443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the Techstream to the DLC3.
    2. Check the cruise control switch (ON-OFF, CANCEL, -SET, +RES and MODE) using the Data List function in the Techstream.
  2. INSPECT MODE SWITCH 
    Fig 2: Mode Switch
    GTY671187Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch on (IG).
    2. Turn the cruise control switch on.
    3. Push the cruise control switch to MODE for 1 second or more to change to constant speed control mode. Check that the multi-information display changes from displaying "RADAR READY" to a black screen.
      Fig 3: Multi-Information Display & Cruise Control Indicator Lights
      GTY466728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Check that the cruise control indicator light (vehicle-to-vehicle distance control mode) turns off and the cruise control indicator light (constant speed control mode) turns on.
      TEXT IN ILLUSTRATION

      *1 Multi-information Display
      *2 Cruise Control Indicator Light (Vehicle-to-vehicle Distance Control Mode)
      *3 Cruise Control Indicator Light (Constant Speed Control Mode)
      NOTE:

      Do not push any other switches before pushing the cruise control switch to MODE. If another switch is pushed, turn the cruise control switch off and repeat the procedure above.

      HINT: 

      If a malfunction is detected, turn the engine switch off and repeat the procedure above.

  3. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Turn the engine switch on (IG).
    2. Turn the cruise control switch on. Check that "RADAR READY" is indicated on the multi-information display and that the cruise control indicator light turns on.
    3. Push the distance control switch of the steering pad switch assembly.
    4. Check that the indication of the vehicle-to-vehicle distance, which is shown in the multi-information display in the combination meter assembly, changes from long to middle to short in that order.
      Fig 4: Inspecting Steering Pad Switch Assembly
      GTY464275Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *A w/ Lane departure Alert System *B w/o Lane departure Alert System
      *1 Steering Pad Switch Assembly (Distance Control Switch) *2 Multi-information Display
      *3 Long *4 Middle
      *5 Short - -

      HINT: 

      The indication is automatically set to long each time the engine is started.