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

    Result
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    NEXT

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  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

      If the battery voltage is below 11 V, recharge or replace the battery and initialize* the integrated current value using the GTS.


      • *: Use the GTS to perform Integrated Current Value Initialization.

        Click here

      • If the Data List item "Integrated Current" is 0 or higher, it is not necessary to perform initialization.

    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


      Powertrain > Stop and Start > Trouble Codes
    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


      Powertrain > Stop and Start > Clear DTCs
    4. Recheck for DTCs.

      Click here


      Powertrain > Stop and Start > Trouble Codes

      Tech Tips

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

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

    B
    A
  5. 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
    A
  6. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Data List / Active Test

      Click here

    2. Terminals of ECU

      Click here

      Result
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      NEXT

    NEXT
  7. REPAIR OR REPLACE

    Result
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    NEXT

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  8. CONFIRMATION TEST


    1. Warm up the engine.

    2. Turn the air conditioning system off.

    3. Drive the vehicle for 5 to 40 minutes.

      CAUTION:

      When performing Confirmation Driving Pattern, obey all speed limits and traffic laws.

    4. Stop the vehicle and confirm that the engine is stopped by stop and start control when all of the following conditions are met:


      • Steering wheel centered

      • Shift lever in D

      • Brake pedal depressed

      • Stop and start indicator light illuminated

      Tech Tips

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

    5. Move the shift lever to P or N and confirm that the engine starts.

      Result
      Proceed to
      NEXT

    NEXT