ROAD SIGN ASSIST SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Perform the following procedure to troubleshoot the road sign assist system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK


    1. Interview the customer and confirm the problem.

      Result
      Proceed to
      NEXT

    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the engine switch off.

      Standard Voltage
      11 to 14 V (Engine switch off)

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

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK CAN COMMUNICATION SYSTEM*


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

      Tech Tips

      Refer to CAN Bus Check in CAN Communication System.

      Click here

      OK
      CAN communication system is functioning normally.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  5. CHECK FOR DTCs* (ROAD SIGN ASSIST SYSTEM)

    Tech Tips

    Refer to DTC Check / Clear.

    Click here


    1. Check for DTCs and note any codes that are output.


      Body Electrical > Road Sign Assist > Trouble Codes

    2. Clear the DTCs.


      Body Electrical > Road Sign Assist > Clear DTCs

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


      Body Electrical > Road Sign Assist > Trouble Codes
      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

    Refer to 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 Click here

    A

  7. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU.

      Click here

    2. Data List / Active Test.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. ADJUST, REPAIR OR REPLACE

    Note

    If the forward recognition camera has been replaced with a new one, it is necessary to perform Forward Recognition Camera Learning.

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  9. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END