DYNAMIC RADAR CRUISE CONTROL SYSTEM DIAGNOSIS SYSTEM


  1. DIAGNOSIS FUNCTION


    1. A01NH8CE01
      Text in Illustration
      *1 Multi-information Display
      *2 Master Warning Light
      *3

      Cruise Main Indicator Light

      (Constant speed control mode)
      *4

      Cruise Main Indicator Light

      (Vehicle-to-vehicle distance control mode)

      The diagnosis function makes the master warning light and the multi-information display come on, and the cruise main indicator light blinks as shown in the illustration. When a malfunction occurs in the dynamic radar cruise control system, the DTCs are stored in the driving support ECU.

      Tech Tips

      During constant speed control mode, the cruise main indicator light (constant speed control mode) flashes. During vehicle-to-vehicle distance control, the cruise main indicator light (vehicle-to-vehicle distance control mode) flashes.

      Note

      The master warning light goes off if the system returns to normal condition.

      A01NH5IE37

  2. DESCRIPTION


    1. The driving support ECU controls the dynamic radar cruise control system of the vehicle. The data and DTCs relating to the dynamic radar cruise control system can be read from the DLC3 of the vehicle. If either DTC or CRUISE OK is not displayed on the multi-information display on the combination meter assembly when checking for DTCs, there may be a problem with either the combination meter assembly or the CAN communication system. Use the intelligent tester to check and solve the problem.

  3. CHECK DLC3


    1. Check the DLC3 Click here.

  4. CHECK INDICATOR


    1. A01NG68

      Turn the power switch on (IG).

    2. Check that the cruise main indicator light and "RADAR READY" indicator come on when the main switch ON-OFF button is pushed on, and that the indicator light and the indicator go off when the ON-OFF button is pushed off.

      Tech Tips


      • If the indicator check result shows a problem, proceed to troubleshooting the combination meter assembly.

      • A01NH5IE37

        If a malfunction occurs in the vehicle speed sensors, the stop light switch assembly, or other related parts during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and blinks the cruise main indicator light. This indicator light informs the driver of the malfunction. At the same time, the malfunction is stored as a diagnostic trouble code.