LEXUS PARKING ASSIST-SENSOR SYSTEM > HOW TO PROCEED WITH TROUBLESHOOTING

for Preparation Click here


HINT:
  1. Use the following procedure to troubleshoot the LEXUS parking assist-sensor system.
  2. *: Use the intelligent tester.



1.VEHICLE BROUGHT TO WORKSHOP

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    2.CUSTOMER PROBLEM ANALYSIS

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      3.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, recharge or replace the auxiliary battery before proceeding to the next step.


      NEXT


      4.CHECK CAN COMMUNICATION SYSTEM*

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

        Result:
        Result
        		Proceed to
        CAN communication system DTC is not output
        		A
        CAN communication system DTC is output
        		B



      		B.
      GO TO CAN COMMUNICATION SYSTEM (Click here)
      A


      5.PROBLEM SYMPTOM CONFIRMATION

        NEXT


        6.CHECK FOR DTC*

        1. Check for DTCs (Click here).

          Result:
          Result
          		Proceed to
          DTC is output
          		A
          DTC is not output (Problem symptom does not occur)
          		B
          DTC is not output (Problem symptom occurs)
          		C



        		B.
        GO TO STEP 8

        		C.
        GO TO STEP 9
        A


        7.DIAGNOSTIC TROUBLE CODE CHART

        1. Refer to Diagnostic Trouble Code Chart (Click here).


        NEXT

        GO TO STEP 11


        8.SYMPTOM SIMULATION

        1. Refer to Symptom Simulation (Click here).


        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
        A


        10.OVERALL ANALYSIS AND TROUBLESHOOTING

        1. Operation Check (Click here)

        2. Terminals of ECU (Click here)

        3. Data List / Active Test (Click here)


        NEXT


        11.CIRCUIT INSPECTION*

          NEXT


          12.IDENTIFICATION OF PROBLEM

            NEXT


            13.REPAIR OR REPLACE

              NEXT


              14.CONFIRMATION TEST*

                NEXT

                END