LEXUS PARKING ASSIST-SENSOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use these procedures to troubleshoot the LEXUS parking assist-sensor system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. INSPECT AUXILIARY BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

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


    NEXT

  3. CHECK AND CLEAR DTC*


    1. Refer to the DTC check / clear Click here.


      NEXT

  4. CHECK INITIAL CHECK FUNCTION


    1. Refer to the operation check Click here.

      Result
      Result Proceed to
      Symptom does not occur A
      Symptom occurs B

      B

      Go to step 6
      A

  5. SYMPTOM SIMULATION


    1. Refer to HOW TO PROCEED WITH TROUBLESHOOTING Click here.


      NEXT

  6. CHECK CAN COMMUNICATION SYSTEM*


    1. Refer to CAN communication system (for LHD) Click here.

    2. Refer to CAN communication system (for RHD) Click here.

      Tech Tips

      The clearance warning ECU is connected to the CAN communication system. Therefore, be sure to check that there are no problems in the CAN communication system before performing troubleshooting.


      NEXT

  7. DTC CHECK*


    1. Refer to the DTC check / clear Click here.

      Result
      Result Proceed to
      DTC is output A
      DTC is not output B

      B

      Go to step 9
      A

  8. DTC CHART


    1. Refer to the diagnostic trouble code chart Click here.


      NEXT
      Go to step 10

  9. PROBLEM SYMPTOMS TABLE


    1. Refer to the problem symptoms table Click here.


      NEXT

  10. CIRCUIT INSPECTION


    NEXT

  11. IDENTIFICATION OF PROBLEM


    NEXT

  12. REPAIR OR REPLACE


    NEXT

  13. CONFIRMATION TEST


    NEXT
    END