PRE-CRASH SAFETY SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the procedures to troubleshoot the pre-crash safety system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


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  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK


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  3. INSPECT BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


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  4. CHECK CAN COMMUNICATION SYSTEM*


    1. Using the intelligent tester, check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD) C

      B

      Go to CAN COMMUNICATION SYSTEM (for LHD) Click here

      C

      Go to CAN COMMUNICATION SYSTEM (for RHD) Click here

      A

  5. CHECK FOR DTC*


    1. Check for DTCs Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs Click here.

      Result
      Result Proceed to
      DTCs are not output (symptoms can be confirmed or reproduced) A
      DTCs are not output (symptoms cannot be confirmed or reproduced) B
      DTCs are output C

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      C

      Go to step 8
      A

  6. PROBLEM SYMPTOMS TABLE

    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

    Tech Tips

    Perform proper procedures according to corresponding faults listed in the problem symptoms table or the corresponding DTCs listed in the diagnostic trouble code chart.

    Note


    • If the object recognition ECU or object recognition camera is replaced, the camera needs to be adjusted Click here.

    • If the front millimeter wave radar sensor is replaced, the beam axis of the sensor needs to be adjusted Click here.

    • If the rear millimeter wave radar sensor is replaced, the beam axis of the sensor needs to be adjusted Click here.

    • If the driving support ECU is replaced, initialization needs to be performed Click here.


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  9. CONFIRMATION TEST


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    END