STOP AND START SYSTEM(for 2GR-FKS), Diagnostic DTC:P062F46

DTC Code DTC Name
P062F46 Internal Control Module EEPROM Calibration / Parameter Memory Failure

DESCRIPTION

The engine stop and start ECU stores the number of starter operations, air conditioning information, and the deceleration sensor zero point learning results.

If the engine stop and start ECU cannot write the number of starter operations, air conditioning information, or the deceleration sensor zero point learning results, it stores DTC P062F46, blinks the stop and start cancel indicator, and prohibits stop and start control.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory Note
P062F46 Internal Control Module EEPROM Calibration / Parameter Memory Failure

Any of the following conditions are met (1 trip detection logic):


  • Air conditioning information cannot be written.

  • The deceleration sensor zero point learning value cannot be written.

  • The number of starter operations was not successfully written to the EEPROM.

Engine stop and start ECU Blinks DTC stored SAE Code: P062F

CONFIRMATION DRIVING PATTERN


  1. CONFIRMATION AFTER TROUBLESHOOTING

    Tech Tips


    • If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.

      In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item [Status of Battery Charge Control] changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)

    • If the GTS is not available and the Data List item [Status of Battery Charge Control] cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

      If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

    • After the refresh charge completes, turn the engine switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.

    • Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Stop and Start > Clear DTCs
    5. Start the engine and warm it up.

    6. Drive the vehicle at 7 km/h (4 mph) or more.

      CAUTION:

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

    7. Depress the brake pedal and stop the vehicle.

    8. Keep the engine stopped by stop and start control for 1 second or more. (Keep the shift lever in D.)

    9. Release the brake pedal with the shift lever in D to start the engine.

    10. Check that DTCs are not output.


      Powertrain > Stop and Start > Trouble Codes
  2. STOP AND START SYSTEM OPERATION CHECK

    Tech Tips


    • If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.

      In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item [Status of Battery Charge Control] changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)

    • If the GTS is not available and the Data List item [Status of Battery Charge Control] cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

      If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

    • After the refresh charge completes, turn the engine switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.


    1. Start the engine and warm it up.

    2. Turn the air conditioning system off.

    3. Drive the vehicle at 7 km/h (4 mph) or more.

      CAUTION:

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

    4. Depress the brake pedal and stop the vehicle.

    5. Allow the engine to stop by stop and start control. (Keep the shift lever in D.)

    6. Release the brake pedal with the shift lever in D to start the engine.

CAUTION / NOTICE / HINT

Note


  • Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.

    Click here

  • After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.

    Click here

  • After replacing the engine stop and start ECU or airbag ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.

    Click here

  • When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.

    Click here

  • After replacing the engine stop and start ECU, perform learning of the external backup boost converter (eco run vehicle converter assembly).

    Click here

Tech Tips


  • Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

    Click here

  • DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.

    Click here

PROCEDURE


  1. PERFORM REGISTRATION (ECU EXCHANGE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Stop and Start / Utility / ECU Exchange.


      Powertrain > Stop and Start > Utility
      Tester Display
      ECU Exchange
    5. According to the display on the GTS, select "Step 1 Save" and then "Next" to download the ECU data from the engine stop and start ECU.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  2. CLEAR DTC


    1. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.

    2. Clear the DTCs.


      Powertrain > Stop and Start > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT
  3. PERFORM REGISTRATION (STARTER EXCHANGE, RESET A/C INFORMATION, DECELERATION SENSOR ZERO POINT CLEAR)


    1. Clear the number of starter operations.


      1. Enter the following menus: Powertrain / Stop and Start / Utility / Starter Exchange.


        Powertrain > Stop and Start > Utility
        Tester Display
        Starter Exchange
    2. Clear the air conditioning information.


      1. Enter the following menus: Powertrain / Stop and Start / Utility / Reset A/C Information.


        Powertrain > Stop and Start > Utility
        Tester Display
        Reset A/C Information
    3. Clear the zero point calibration data of the deceleration sensor.


      1. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Clear.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Clear
      Result
      Proceed to
      NEXT

    NEXT
  4. PERFORM REGISTRATION (ECU EXCHANGE, DECELERATION SENSOR ZERO POINT CALIBRATION)


    1. Enter the following menus: Powertrain / Stop and Start / Utility / ECU Exchange.


      Powertrain > Stop and Start > Utility
      Tester Display
      ECU Exchange
    2. According to the display on the GTS, select "Step 3 Write" and then "Next" to write the ECU data to the new engine stop and start ECU.

      Click here

    3. Perform air conditioning information learning.

      Click here

      Tech Tips

      When initialization of the air conditioning information is complete, air conditioning information learning is automatically performed.

    4. Perform deceleration sensor zero point calibration.


      1. Enter the following menus: Powertrain / Stop and Start / Utility / Deceleration Sensor Zero Point Calibration.


        Powertrain > Stop and Start > Utility
        Tester Display
        Deceleration Sensor Zero Point Calibration
      Result
      Proceed to
      NEXT

    NEXT
  5. CHECK DTC OUTPUT


    1. Start the engine and warm it up.

    2. Turn the air conditioning system off.

    3. Drive the vehicle at 7 km/h (4 mph) or more.

      CAUTION:

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

    4. Depress the brake pedal and stop the vehicle.

    5. Allow the engine to stop by stop and start control. (Keep the shift lever in D.)

    6. Release the brake pedal with the shift lever in D to start the engine.

    7. Check for DTCs.


      Powertrain > Stop and Start > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P062F46 is output B

    A
    B