LEXUS PARKING ASSIST-SENSOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use the following procedure to troubleshoot the LEXUS parking assist-sensor system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS

    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V

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

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK CAN COMMUNICATION SYSTEM*


    1. Use the Techstream to check if the CAN communication system is functioning normally (w/ Central Gateway ECU) Click here.

    2. Use the Techstream to check if the CAN communication system is functioning normally (w/o Central Gateway ECU) Click here.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output (w/ Central Gateway ECU) B
      CAN communication system DTCs are output (w/o Central Gateway ECU) C

    B

    GO TO CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (w/o Central Gateway ECU) Click here

    A

  5. PROBLEM SYMPTOM CONFIRMATION

    Result
    Proceed to
    NEXT

    NEXT

  6. CHECK DTC*


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTCs are output A
      DTCs are not output (Problem symptom does not occur) B
      DTCs are not output (Problem symptom occurs) C

    B

    SYMPTOM SIMULATION Click here

    C

    GO TO STEP 9 Click here

    A

  7. DIAGNOSTIC TROUBLE CODE CHART


    1. Refer to Diagnostic Trouble Code Chart Click here.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 11 Click here

  8. SYMPTOM SIMULATION


    1. Refer to Symptom Simulation Click here.

      Result
      Proceed to
      NEXT

    NEXT

  9. 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 11 Click here

    A

  10. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check Click here

    2. Terminals of ECU Click here

    3. Data List / Active Test Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CIRCUIT INSPECTION*

    Result
    Proceed to
    NEXT

    NEXT

  12. IDENTIFICATION OF PROBLEM

    Result
    Proceed to
    NEXT

    NEXT

  13. REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  14. CONFIRMATION TEST*

    Result
    Proceed to
    NEXT

    NEXT

    END