Combustion Type Power Heater System How To Proceed With Troubleshooting

Heater & Air Conditioning System. Lexus Is250, Is220D. Gse20 Ale20
Heater. Lexus Is250, Is220D. Gse20 Ale20

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. CHECK AND CLEAR DTC

  4. PROBLEM SYMPTOM CONFIRMATION

  5. SYMPTOM SIMULATION

  6. DTC CHECK

  7. DTC CHART

  8. PROBLEM SYMPTOMS TABLE

  9. CIRCUIT INSPECTION

  10. IDENTIFICATION OF PROBLEM

  11. PARTS INSPECTION

  12. REPAIR

  13. CONFIRMATION TEST

Combustion Type Power Heater System -- How To Proceed With Troubleshooting




1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS

      NEXT


      3.CHECK AND CLEAR DTC

        NEXT


        4.PROBLEM SYMPTOM CONFIRMATION
          Result:
          Result
          		Proceed to
          Symptom does not occur
          		A
          Symptom occurs
          		B


        		B.
        GO TO STEP 6
        A


        5.SYMPTOM SIMULATION

          NEXT


          6.DTC CHECK
            Result:
            Result
            		Proceed to
            Trouble code
            		A
            Normal system code
            		B


          		A.
          GO TO STEP 8
          B


          7.DTC CHART


            		NEXT.
            GO TO STEP 10

            8.PROBLEM SYMPTOMS TABLE

              NEXT


              9.CIRCUIT INSPECTION

                NEXT


                10.IDENTIFICATION OF PROBLEM

                  NEXT


                  11.PARTS INSPECTION

                    NEXT


                    12.REPAIR

                      NEXT


                      13.CONFIRMATION TEST

                        NEXT

                        END