ROAD SIGN ASSIST SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the road sign assist system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT AUXILIARY BATTERY VOLTAGE


    1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage
      11 to 14 V

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

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK CAN COMMUNICATION SYSTEM*


    1. Use the GTS to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output (for LHD) B
      CAN communication system DTCs are output (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  4. CHECK FOR DTCs*

    Refer to DTC Check / Clear

    Click here


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

    2. Clear the DTCs.

    3. Recheck for DTCs. Based on the DTCs output in the first step, try to reproduce the road sign assist system DTCs by simulating the conditions indicated by the DTCs.

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

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  5. PROBLEM SYMPTOMS TABLE

    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 7 Click here

    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU

      Click here

    2. Data List / Active Test

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. ADJUST, REPAIR OR REPLACE

    Note

    Adjustment of the forward recognition camera is required when the forward recognition camera is replaced with a new one or if it is removed and reinstalled.

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  8. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END