DYNAMIC RADAR CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Perform the following procedure to troubleshoot the dynamic radar cruise control system.

  • *: Use the Techstream.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. INSPECT BATTERY VOLTAGE


    1. Measure the battery.

      Standard Voltage
      11 to 14 V

      If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.


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  3. INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)*


    1. Adjust the reflector height Click here.

    2. Place the reflector Click here.

    3. Connect the Techstream to the DLC3.

    4. Turn the Techstream on.

    5. Turn the cruise control main switch (ON/OFF button) on.

    6. Enter the following menus: Powertrain / Radar Cruise / Utility / Beam Axis Misalignment Reading.

    7. Check the amount of misalignment and make a note.


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  4. CHECK CAN COMMUNICATION SYSTEM*


    1. Using the Techstream, check if the CAN communication system is functioning normally Click here.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output B

      B

      GO TO CAN COMMUNICATION SYSTEM Click here

      A

  5. CHECK FOR DTCs (RADAR CRUISE)*


    1. Check for DTCs and make a note of any codes that are output Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs Click here.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

      B

      GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  6. PROBLEM SYMPTOMS TABLE

    Tech Tips

    Problem Symptoms Table Click here.

    Result
    Result Proceed to
    Fault is not listed in Problem Symptoms Table A
    Fault is listed in Problem Symptoms Table B

    B

    Go to step 8
    A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU Click here

    2. Data List / Active Test Click here


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  8. ADJUST, REPAIR OR REPLACE

    Note

    When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed Click here.


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  9. CONFIRMATION TEST


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    END