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DYNAMIC RADAR CRUISE CONTROL SYSTEM ROAD TEST

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  1. PROBLEM SYMPTOM CONFIRMATION

    Tip:

    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 switch (ON-OFF button).

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


    1. A0004CJE02

      Inspect the SET function.

      Table 1. Text in Illustration
      *a ON/OFF
      *b -/SET

      1. Turn the cruise control system on using the cruise control switch (ON-OFF button).

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

      3. Drive at a speed between approximately 50 km/h (31 mph) and 170 km/h (106 mph).

      4. A0004B9E01

        Push the cruise control switch to -/SET.

        Table 2. Text in Illustration
        *1

        Cruise Control Indicator Light

        (Vehicle-to-vehicle distance control mode)
        *2 Cruise Control SET Indicator Light
        *3 Multi-information Display

      5. Check that the cruise control indicator light remains illuminated, the cruise control SET indicator light illuminates and the set speed is displayed in the multi-information display.

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

    2. A0004A0E02

      Inspect the + (ACCEL) function.

      Table 3. Text in Illustration
      *a ON/OFF
      *b -/SET
      *c +/RES

      1. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      2. Drive at a speed between approximately 50 km/h (31 mph) and 170 km/h (106 mph).

      3. Push the cruise control switch to -/SET.

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

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

        Tip:

        *: Constant speed control mode: increases by approximately 1.6 km/h (1 mph); vehicle-to-vehicle distance control mode: increases by approximately 1 km/h or 1 mph.

    3. A0004CJE03

      Inspect the - (COAST) function.

      Table 4. Text in Illustration
      *a ON/OFF
      *b -/SET

      1. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      2. Drive at a speed between approximately 50 km/h (31 mph) and 170 km/h (106 mph).

      3. Push the cruise control switch to -/SET.

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

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

        Tip:

        *: Constant speed control mode: decreases by approximately 1.6 km/h (1 mph); vehicle-to-vehicle distance control mode: decreases by approximately 1 km/h or 1 mph.

    4. A0004IXE02

      Inspect the CANCEL function.

      Table 5. Text in Illustration
      *a ON/OFF
      *b -/SET
      *c CANCEL

      1. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      2. Drive at a speed between approximately 50 km/h (31 mph) and 170 km/h (106 mph).

      3. Push the cruise control switch to -/SET.

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


        • Depressing the brake pedal

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

        • Selecting the 3rd, 2nd, or 1st range with the shift lever in S.

        • Pulling the cruise control switch to CANCEL

        • Turning the cruise control system off using the cruise control switch (ON-OFF button). The stored vehicle speed in the driving support ECU assembly is not maintained.

    5. A0004A0E02

      Inspect the RES (RESUME) function.

      Table 6. Text in Illustration
      *a ON/OFF
      *b -/SET
      *c +/RES

      1. Turn the cruise control system on using the cruise control switch (ON-OFF button).

      2. Drive at a speed between approximately 50 km/h (31 mph) and 170 km/h (106 mph).

      3. Push the cruise control switch to -/SET.

      4. Cancel the cruise control system control of vehicle speed by performing any of the above operations (other than turning the cruise control system off using the ON-OFF switch).

      5. After pushing the cruise control switch to +/RES at a speed of more than approximately 40 km/h (25 mph), check that the vehicle resumes the speed set prior to cancellation and that the cruise control SET indicator light comes on.

        Tip:

        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 cruise control switch to +/RES when the vehicle speed has returned to approximately 40 km/h (25 mph) or more.