LANE DEPARTURE ALERT 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 lane departure alert system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V (Ignition Switch off)

    2. While using the parts location and circuit diagrams as a reference, inspect areas which can be visually inspected for blown fuses, problems with wire harnesses (open and short circuits), improperly connected connectors, etc.


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

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK COMMUNICATION FUNCTION OF 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 B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  4. CHECK FOR DTC*



    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 lane departure alert system DTCs by simulating the conditions indicated by the DTCs.

      Result
      Result Proceed to
      No DTC is output (symptoms can be confirmed and reproduced) A
      No DTC is output (symptoms cannot be confirmed and reproduced) B
      DTCs are output C

    B

    USE SIMULATION METHOD TO CHECK Click here

    C

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  5. PROBLEM SYMPTOMS TABLE


    1. 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

    When the pre-crash safety city sensor is replaced with a new one, adjustment of the pre-crash safety city sensor beam axis must be performed.


    • Perform adjustment using "ONE TIME RECOGNITION" or "SEQUENTIAL RECOGNITION".


    Result
    Proceed to
    NEXT

    NEXT

  8. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END