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Registration [12/2021 - ]: Procedure

  1. ECU EXCHANGE 
    NOTE:
    • When replacing the engine stop and start ECU, make sure to download the number of starter operations (step 1). After replacing the engine stop and start ECU (step 2), write the number of starter operations to the new engine stop and start ECU (step 3).
    • After replacing the engine stop and start ECU, make sure to perform external backup boost converter (eco run vehicle converter assembly) existence learning (step 4).
    • Even if the number of starter operations could not be downloaded, after replacing the engine stop and start ECU with a new one, make sure to perform external backup boost converter (eco run vehicle converter assembly) existence learning (step 4).
    1. Download the engine stop and start ECU data. (Step 1)
      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 1 Save" and then "Next" to download the ECU data from the engine stop and start ECU.
    2. Replace the engine stop and start ECU. (step 2)
      1. Replace the engine stop and start ECU.

        Refer to REMOVAL [12/2021 - ]

    3. Write the engine stop and start ECU data to the new engine stop and start ECU. (Step 3)
      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.
    4. Perform external backup boost converter (eco run vehicle converter assembly) existence learning. (Step 4)
      1. According to the display on the GTS, select "Step 4 Learning" and then "Next" to perform external backup boost converter (eco run vehicle converter assembly) existence learning.

        HINT: 

        • If the external backup boost converter (eco run vehicle converter assembly) existence value of the old engine stop and start ECU differs from the current learned value or if data could not be downloaded from the old engine stop and start ECU, the learning result will be displayed.
        • If the external backup boost converter (eco run vehicle converter assembly) existence value of the old engine stop and start ECU was "available" but the value after replacement is "not available", the external backup boost converter (eco run vehicle converter assembly) may not be connected securely. Check the connector connection condition and perform learning again.

          External backup boost converter (eco run vehicle converter assembly) installation position: Refer to PARTS LOCATION [12/2021 - ] 

  2. CLEAR NUMBER OF STARTER OPERATIONS 
    NOTE:
    • After the starter assembly is replaced, be sure to clear the number of starter operations stored in the engine stop and start ECU.
    • When the starter assembly is replaced, "ST NO. 1 relay" and "ST NO. 2 relay" must be also replaced.
    1. Enter the following menus: Powertrain / Stop and Start / Utility / Starter Exchange.

      Powertrain > Stop and Start > Utility 

      Tester Display
      Starter Exchange
    2. Following the prompts on the GTS display, clear the number of starter operations.
    3. Check the Vehicle Control History and clear X0877 if it is output.

      Refer to VEHICLE CONTROL HISTORY (RoB) [12/2021 - 10/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [10/2023 - ]

  3. TOTAL NUMBER OF ENGINE STARTS RESET 
    NOTE:

    After the drive plate and ring gear sub-assembly is replaced, be sure to clear the number of total number of engine starts stored in the engine stop and start ECU.

    1. Enter the following menus: Powertrain / Stop and Start / Utility / Total Number of Engine Starts Reset.

      Powertrain > Stop and Start > Utility 

      Tester Display
      Total Number of Engine Starts Reset
    2. Check the Vehicle Control History and clear X0878 if it is output.

      Refer to VEHICLE CONTROL HISTORY (RoB) [12/2021 - 10/2023] , or refer to VEHICLE CONTROL HISTORY (RoB) [10/2023 - ]

  4. RESET AIR CONDITIONING INFORMATION 
    NOTE:

    After replacing the engine stop and start ECU or air conditioning amplifier assembly, initialization of the air conditioning information in the engine stop and start ECU is necessary.

    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
    2. Following the prompts on the GTS display, clear the A/C information.
  5. LEARNING AIR CONDITIONING INFORMATION 

    HINT: 

    When initialization of the air conditioning information is complete, air conditioning information learning is automatically performed. If the learning cannot be performed properly, inspect the CAN communication system.

  6. CLEAR THE INTEGRATED CURRENT VALUE 

    HINT: 

    If the integrated current value does not exceed the threshold*1 even though the battery has been charged until the battery current decreases to 5 A or less, perform an integrated current value initialization.

    1. *1: Refer to System Description for details on the integrated current threshold.

      Refer to SYSTEM DESCRIPTION [12/2021 - 10/2023] , or refer to SYSTEM DESCRIPTION [10/2023 - ] 

    1. Enter the following menus: Powertrain / Stop and Start / Utility / Integrated Current Value Initialization.

      Powertrain > Stop and Start > Utility 

      Tester Display
      Integrated Current Value Initialization
  7. SWITCH BATTERY TYPE 
    1. Check whether the battery is specified or not specified.
    2. Connect the GTS to the DLC3.
    3. Turn the ignition switch to ON.

      HINT: 

      Do not start the engine.

    4. Turn the GTS on.
    5. Enter the following menus: Powertrain / Stop and Start / Data List / Battery Type.

      Powertrain > Stop and Start > Data List 

      Tester Display
      Battery Type

      HINT: 

      Check the battery type (Specified/Other) stored by the engine stop and start ECU.

    6. If the battery installed does not match the battery stored by the ECM, switch to the battery type for the installed battery.
      1. Enter the following menus: Powertrain / Engine / Utility / Switch Battery Type.

        Powertrain > Engine > Utility 

        Tester Display
        Switch Battery Type
  8. AIR BLEED OIL PUMP WITH MOTOR ASSEMBLY 
    NOTE:

    Bleed the oil pump with motor assembly after replacing the automatic transmission assembly or replacing the automatic transmission fluid.

    1. Connect the GTS to the DLC3.
    2. Turn the ignition switch to ON.

      HINT: 

      Do not start the engine.

    3. Turn the GTS on.
    4. Enter the following menus: Powertrain / Stop and Start / Active Test / Oil Pump.

      Powertrain > Stop and Start > Active Test 

      Tester Display
      Oil Pump
    5. Perform the " Oil Pump" Active Test for 10 seconds or more.
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