STOP AND START SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

*: Use the GTS

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS


    1. Confirm the problem symptoms.

      Result
      Proceed to
      NEXT

    NEXT

  3. PRE-CHECK


    1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

      Tech Tips


      • Whether the vehicle battery is discharged can be checked simply by operating the horn.

      • After recharging the battery, using the GTS, initialize the integrated current item*.


        • *: If the Data List item "Integrated Current" indicates 0 or more, initialization is not necessary.

    2. Check the fuses and relays.

    3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DTC AND FREEZE FRAME DATA*


    1. Check for DTCs.

      Click here

    2. Check for freeze frame data.

      Tech Tips

      Record or print DTCs and freeze frame data if necessary.

    3. Clear the DTCs and freeze frame data.

      Click here

    4. Recheck for DTCs.

      Click here

      Tech Tips

      If any DTCs for the CAN communication system are output, troubleshoot those DTCs first.

      Result
      Result Proceed to
      DTCs are output A
      DTCs are not output B

    B

    GO TO STEP 6 Click here

    A

  5. DIAGNOSTIC TROUBLE CODE CHART

    Result
    Proceed to
    NEXT

    NEXT

  6. PROBLEM SYMPTOMS TABLE


    1. Problem Symptoms Table.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Data List/Active Test.

      Click here

    2. Terminals of ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. CIRCUIT INSPECTION

    Result
    Proceed to
    NEXT

    NEXT

  9. ADJUST AND/OR REPAIR

    Result
    Proceed to
    NEXT

    NEXT

  10. CLEAR DTC*


    1. Clear the DTC.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  11. CONFIRMATION TEST


    1. Perform a confirmation test.


      1. Warm up the engine.

      2. Turn the air conditioning system off.

      3. Drive the vehicle for 15 minutes to 40 minutes.

      4. Stop the vehicle, shift to neutral and depresses the brake pedal. Check if the stop and start cancel indicator light goes off.

        Tech Tips

        If the engine does not stop due to stop and start system control, air fuel ratio learning and idle speed learning are necessary. Allow the engine to idle for 3 minutes and check that the engine speed is within 50 rpm of the target idle speed.

      5. Check if the engine restarts.

      Result
      Proceed to
      NEXT

    NEXT

    END