CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips


  • Use the following procedures to troubleshoot the cruise control system.

  • *: Use the intelligent tester.


  1. VEHICLE BROUGHT TO WORKSHOP


    NEXT

  2. PROBLEM SYMPTOM CONFIRMATION


    NEXT

  3. CHECK CAN COMMUNICATION SYSTEM*

    Refer to PRECAUTION Click here.


    1. Check for output DTCs.

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

      Tech Tips

      The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.


      B

      PROCEED TO "CAN COMMUNICATION SYSTEM"
      A

  4. DTC CHECK AND CLEAR*

    Refer to DTC CHECK / CLEAR Click here.


    NEXT

  5. DTC CHECK (OTHER THAN CAN SYSTEM DTC)*

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

    A

    GO TO STEP 8
    B

  6. DTC CHART

    Refer to DIAGNOSTIC TROUBLE CODE CHART Click here.


    NEXT
    GO TO STEP 11

  7. PROBLEM SYMPTOM CONFIRMATION

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

    A

    GO TO STEP 10
    B

  8. SYMPTOM SIMULATION

    Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE Click here.


    NEXT
    GO TO STEP 8

  9. PROBLEM SYMPTOMS TABLE

    Refer to PROBLEM SYMPTOMS TABLE Click here.


    NEXT

  10. CIRCUIT INSPECTION


    NEXT

  11. TERMINALS OF ECM

    Refer to TERMINALS OF ECM Click here.


    NEXT

  12. IDENTIFICATION OF PROBLEM


    NEXT

  13. REPAIR OR REPLACE


    NEXT

  14. CONFIRMATION TEST


    NEXT
    END