Dynamic Radar Cruise Control System How To Proceed With Troubleshooting

Cruise Control System. Lexus Is250, Is220D. Gse20 Ale20
Cruise Control. Lexus Is250, Is220D. Gse20 Ale20

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. PROBLEM SYMPTOM CONFIRMATION

  4. INSPECT BATTERY VOLTAGE

  5. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  6. CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)

  7. DTC CHECK

  8. DTC CHART

  9. PROBLEM SYMPTOMS TABLE

  10. CIRCUIT INSPECTION

  11. TERMINALS OF ECM

  12. IDENTIFICATION OF PROBLEM

  13. REPAIR OR REPLACE

  14. CONFIRMATION TEST

Dynamic Radar Cruise Control System -- How To Proceed With Troubleshooting


HINT:
  1. Use the following procedures to troubleshoot the dynamic radar cruise control system.
  2. *: Use the intelligent tester.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS

      NEXT


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


      		B.
      SYMPTOM SIMULATION
      A


      4.INSPECT BATTERY VOLTAGE
        Standard voltage:
        11 to 14 V
        If the voltage is below 11 V, replace or recharge the battery before proceeding.

      NEXT


      5.CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

      1. Use the intelligent tester to check if the multiplex communication system (MPX) is functioning normally.

        2. Result
        Result
        		Proceed to
        MPX DTC is not output
        		A
        MPX DTC is output
        		B


      		B.
      Go to MULTIPLEX COMMUNICATION SYSTEM
      A


      6.CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)

      1. Use the intelligent tester to check for normal function of the CAN communication system.

      2. Check for DTCs.

        3. Result:
        Condition
        		Proceed to
        DTC is not output
        		A
        DTC is output
        		B


      		B.
      Go to CAN COMMUNICATION SYSTEM
      A


      7.DTC CHECK
        Result:
        Condition
        		Proceed to
        DTC is output
        		A
        DTC is not output
        		B


      		B.
      Go to step 9
      A


      8.DTC CHART

        NEXT

        Go to step 10


        9.PROBLEM SYMPTOMS TABLE

          NEXT


          10.CIRCUIT INSPECTION

            NEXT


            11.TERMINALS OF ECM

              NEXT


              12.IDENTIFICATION OF PROBLEM

                NEXT


                13.REPAIR OR REPLACE

                  NEXT


                  14.CONFIRMATION TEST

                    NEXT

                    END