DYNAMIC RADAR CRUISE CONTROL SYSTEM(except 2AR-FE) ROAD TEST

Tech Tips

The dynamic radar cruise control system has 2 cruise control modes: constant speed control mode and vehicle-to-vehicle distance control mode.


  • Vehicle-to-vehicle distance control mode is selected by default when the dynamic radar cruise control system is turned on using the cruise control main switch.

  • Operation of constant speed control mode is the same as that for a conventional cruise control system.

    Click here


  1. PROBLEM SYMPTOM CONFIRMATION


    1. Inspect the SET function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Check that the cruise control indicator light illuminates in the combination meter assembly.

      3. Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

      4. B006Y9P

        Push the -SET switch.

      5. B006XT2C14
        *a

        Cruise Control Indicator

        (Vehicle-to-vehicle Distance Control Mode)
        *b Cruise SET Indicator

        Check that the cruise control indicator remains illuminated, the cruise SET indicator illuminates in the combination meter assembly and the set speed is displayed on the multi-information display.

      6. After releasing the switch, check that the vehicle maintains the set speed.

    2. Inspect the + (ACCEL) function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

      3. B006Y9P

        Push the -SET switch.

      4. B0070GK

        Check that vehicle speed increases while the +RES switch is pushed, and that the vehicle maintains the newly set speed when the switch is released.

      5. Push the +RES switch and then release it immediately. Check that the vehicle speed increases* (tap-up control).

        Tech Tips

        *: Constant speed control mode: increases by approximately 1 km/h or 1 mph; vehicle-to-vehicle distance control mode: increases by approximately 5 km/h or 5 mph (for Europe) or 1 km/h or 1 mph (except Europe).

    3. Inspect the - (COAST) function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

      3. B006Y9P

        Push the -SET switch.

      4. Check that vehicle speed decreases while the - SET switch is pushed, and the vehicle maintains the newly set speed when the switch is released.

      5. Push the -SET switch, and then release it immediately. Check that the vehicle speed decreases* (tap-down control).

        Tech Tips

        *: Constant speed control mode: decreases by approximately 1 km/h or 1 mph; vehicle-to-vehicle distance control mode: decreases by approximately 5 km/h or 5 mph (for Europe) or 1 km/h or 1 mph (except Europe).

    4. Inspect the CANCEL function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

      3. B006Y9P

        Push the -SET switch.

      4. B006ZOA

        When any of the following are performed, check that control of vehicle speed by the dynamic radar cruise control system is canceled and that the normal driving mode (no control of vehicle speed by the dynamic radar cruise control system) resumes.


        • Depressing the brake pedal.

        • Moving the shift lever from D or S to any other position.

        • Selecting the S3, S2 or S1 range with the shift lever in S.

        • Pushing the CANCEL switch.

        • Turning the cruise control system off using the cruise control main switch (the stored vehicle speed in the ECM is not maintained).

    5. Inspect the RES (RESUME) function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (112 mph).

      3. B006Y9P

        Push the -SET switch.

      4. Cancel control of vehicle speed by the dynamic radar cruise control system by performing any of the CANCEL functions (other than turning the dynamic radar cruise control system off using the cruise control main switch).

      5. B0070GK

        Push the +RES switch while driving the vehicle at a speed of more than approximately 40 km/h (25 mph), and check that the vehicle resumes the speed set prior to cancellation and that the cruise SET indicator illuminates.

        Tech Tips

        The stored vehicle speed is retained even if vehicle speed drops below approximately 40 km/h (25 mph). The previously stored vehicle speed can be resumed by pushing the +RES switch when the vehicle speed has returned to approximately 40 km/h (25 mph) or more.

  2. CHECK FULL-SPEED RANGE FOLLOWING FUNCTION


    1. Check the SET function.


      1. B00707D

        Turn the dynamic radar cruise control system on using the cruise control main switch.

      2. Drive at a speed between approximately 0 km/h (0 mph) and 180 km/h (112 mph).

      3. Check that there is a preceding vehicle that can be tracked.

        Tech Tips

        Tracking control may not track the preceding vehicle under the following conditions:


        • The rear of the preceding vehicle is small, such as an empty trailer or motorcycle.

      4. B006Y9P

        Push the -SET switch.

      5. Check that tracking of the preceding vehicle begins with the set vehicle speed as the upper limit when the -SET switch is pressed.

      6. Check that the set vehicle speed is displayed on the multi-information display in the combination meter assembly.

    2. Check the deceleration function.


      1. When the preceding vehicle decelerates, check that the vehicle automatically decelerates while maintaining the set vehicle-to-vehicle distance.

      2. When the vehicle stops, check that "WAITING" is displayed on the multi-information display in the combination meter assembly.

        Tech Tips

        When "WAITING" is displayed on the multi-information display in the combination meter assembly, even if the brake pedal is depressed, tracking control is not canceled.

    3. Check the acceleration function.


      1. When the preceding vehicle starts off, check that "Operate Cruise Switch or Accelerator Pedal to Resume" is displayed on the multi-information display in the combination meter assembly.

      2. B0070GK

        When the +RES switch is pushed or the accelerator pedal is depressed, check that tracking control resumes and begins tracking the preceding vehicle.

    4. Check the tracking control cancel function.


      1. When the vehicle speed is approximately 40 km/h (25 mph) or less and the preceding vehicle is no longer in front of the vehicle, check that "Radar Cruise Control Not Available No Preceding Vehicle" is displayed on the multi-information display in the combination meter assembly, the warning buzzer sounds 4 times and tracking control cancels.

        Tech Tips

        Tracking control also automatically cancels when the preceding vehicle moves out of the detection range due to a curve, etc., when the vehicle speed is 40 km/h (25 mph) or less.