PRE-COLLISION SYSTEM(for Mono Camera Type) 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 pre-collision 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. 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 GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the GTS on.

    6. Turn the cruise control main switch on.

    7. Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Misalignment Reading.

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


      Body Electrical > Pre-Collision 2 > Utility
      Tester Display
      Front Beam Axis Misalignment Reading

    9. Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Offset Reading.

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


      Body Electrical > Pre-Collision 2 > Utility
      Tester Display
      Front Beam Axis Offset Reading

    11. Calculate the "Dealership Axis Offset Angle (with On-line Calibration Angle)" using the values "Front Beam Axis Misalignment Reading" and "Front Beam Axis Offset Reading".


      1. "Dealership Axis Offset Angle (with On-line Calibration Angle)" = "Front Beam Axis Misalignment Reading" - "Front Beam Axis Offset Reading"

        Standard
        Dealership Axis Offset Angle (with On-line Calibration Angle)
        Vertical -2.2 to 1.6 deg.
        Horizontal -0.6 to 0.6 deg.
      Result
      Result Proceed to
      The dealership axis offset angle (with on-line calibration angle) is within the specified range. A
      The dealership axis offset angle (with on-line calibration angle) is not within the specified range. B

    B

    ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY Click here

    A

  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. INSPECT WARNING LIGHT


    1. Check the condition of the warning lights on the combination meter assembly.

      Result
      Result Proceed to
      Only the PCS warning light is blinking A
      The PCS warning light is not blinking
      The PCS warning light and other warning lights are illuminated or blinking B

    B

    GO TO MALFUNCTIONING SYSTEM

    A

  6. INSPECT MULTI-INFORMATION DISPLAY


    1. Check if a pre-collision system warning message is displayed on the multi-information display in the combination meter assembly.

      Result
      Result Proceed to
      "Pre-Collision System Malfunction Visit Your Dealer" is displayed A

      Any of the following messages is displayed:


      • "Pre-Collision System Unavailable"

      • "Pre-Collision System Unavailable Clean Sensor"

      • "Front Camera Unavailable"

      • "Front Camera Vision Blocked Clean and Demist Windshield"

      		 B
      Warning message is not displayed C

    B

    GO TO PROBLEM SYMPTOMS TABLE Click here

    C

    CHECK CONDITIONS WHEN PRE-COLLISION SYSTEM DID NOT OPERATE Click here

    A

  7. CHECK FOR DTCs* (PRE-COLLISION SYSTEM)

    Tech Tips

    Refer to DTC Check / Clear.

    Click here


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


      Body Electrical > Pre-Collision 2 > Trouble Codes

    2. Clear the DTCs.


      Body Electrical > Pre-Collision 2 > Clear DTCs

    3. Recheck for DTCs.


      1. Attempt to duplicate the malfunction and check if the DTCs are output again.


        Body Electrical > Pre-Collision 2 > Trouble Codes
      Result
      Result Proceed to
      Malfunction is duplicated but DTCs are not output A
      Malfunction cannot be duplicated and DTCs are not output B
      DTCs are output C

    B

    GO TO SYMPTOM SIMULATION Click here

    C

    GO TO DTC CHART Click here

    A

  8. 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 11 Click here

    A

  9. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU

      Click here

    2. Data List / Active Test

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  10. 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

    Result
    Proceed to
    NEXT

    NEXT

  11. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END

  12. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY


    1. Perform millimeter wave radar sensor assembly adjustment.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 4 Click here