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COOLANT(for Inverter Coolant) REPLACEMENT

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CAUTION / NOTICE / HINT

CAUTION:
B004VY3C01
*1 Inverter Reserve Tank Cap *2 Drain Cock Plug

  • To avoid the danger of being burned, do not remove the reserve tank cap or drain cock plug while the coolant (for inverter) is still hot.

  • Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns.

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PROCEDURE


  1. Click here

    AIR SUSPENSION CONTROL PROHIBITED (w/ Air Suspension)

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  2. Click here

    REMOVE UPPER RADIATOR SUPPORT SEAL

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  3. Click here

    REMOVE RADIATOR COVER PLATE

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  4. Click here

    REMOVE LOWER RADIATOR AIR DEFLECTOR

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  5. Click here

    REMOVE OIL PAN PROTECTOR


  6. Click here

    DRAIN COOLANT (for Inverter)

    CAUTION:

    • To avoid the danger of being burned, do not remove the reserve tank cap or drain cock plug while the coolant (for inverter) is still hot.

    • Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns.

    Note:

    • Do not reuse the drained coolant because it may contain foreign objects.

    • Collect the drained coolant and measure its volume to establish a benchmark. When adding coolant, make sure to add more coolant than the measured amount.


    1. Remove the inverter reserve tank cap from the inverter reserve tank assembly.

    2. B004VKAC01
      *1 Drain Cock Plug
      *a Hose

      Connect a hose to the drain cock as shown in the illustration.

    3. Loosen the drain cock plug and drain the coolant.

    4. Tighten the drain cock plug.

    5. Disconnect the hose from the radiator drain cock.

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    ADD COOLANT (for Inverter)

    Note:

    • Do not reuse the drained coolant because it may contain foreign objects.

    • If the vehicle is driven with air in the inverter cooling system, damage may occur and the following DTCs may be set.

    DTC Code Detection Item
    P0A9300 Inverter "A" Cooling System Performance
    P0C7396 Motor Electronics Coolant Pump "A" Component Internal Failure
    P0A001C Motor Electronics Coolant Temperature Sensor Circuit Voltage Out of Range
    P0A0011 Motor Electronics Coolant Temperature Sensor Circuit Short to Ground
    P0A0015 Motor Electronics Coolant Temperature Sensor Circuit Short to Battery or Open
    P0A789E Drive Motor "A" Inverter Stuck On
    P1C5D19 Drive Motor "A" Inverter Circuit Current Above Threshold
    P0A7A9E Generator Inverter Stuck On
    P1C5F19 Generator Inverter Circuit Current Above Threshold
    P0A949E DC/DC Converter Stuck On
    P0D3319 DC/DC Converter Circuit Current Above Threshold
    P0AED1C Drive Motor Inverter Temperature Sensor "A" Circuit Voltage Out of Range
    P0AED11 Drive Motor Inverter Temperature Sensor "A" Circuit Short to Ground
    P0AED15 Drive Motor Inverter Temperature Sensor "A" Circuit Short to Battery or Open
    P0AED46 Drive Motor Inverter Temperature Sensor "A" Calibration / Parameter Memory Failure
    P0C381C DC/DC Converter Temperature Sensor "A" Circuit Voltage Out of Range
    P0C381F DC/DC Converter Temperature Sensor "A" Circuit Intermittent
    P0C3846 DC/DC Converter Temperature Sensor "A" Calibration / Parameter Memory Failure
    P0C3D1C DC/DC Converter Temperature Sensor "B" Circuit Voltage Out of Range
    P0C3D1F DC/DC Converter Temperature Sensor "B" Circuit Intermittent
    P0C3D46 DC/DC Converter Temperature Sensor "B" Calibration / Parameter Memory Failure
    P1CCC96 DC/DC Converter Enable Component Internal Failure
    P0BCC1C Generator Inverter Temperature Sensor Circuit Voltage Out of Range
    P0BCC11 Generator Inverter Temperature Sensor Circuit Short to Ground
    P0BCC15 Generator Inverter Temperature Sensor Circuit Short to Battery or Open
    P0BCC46 Generator Inverter Temperature Sensor Calibration / Parameter Memory Failure
    P0C3811 DC/DC Converter Temperature Sensor "A" Circuit Short to Ground
    P0C3815 DC/DC Converter Temperature Sensor "A" Circuit Short to Battery or Open
    P0C3D11 DC/DC Converter Temperature Sensor "B" Circuit Short to Ground
    P0C3D15 DC/DC Converter Temperature Sensor "B" Circuit Short to Battery or Open

    1. Slowly pour coolant into the inverter reserve tank assembly until it reaches the FULL line.

      Standard Capacity
      Item Specified Condition
      for LHD 2.5 liters (2.6 US qts, 2.2 Imp. qts)
      for RHD 2.4 liters (2.5 US qts, 2.1 Imp. qts)
      Note:

      To prevent foreign matter such as dust or dirt from entering the cooling system, make sure to confirm that the container used to add coolant is clean and free of foreign matter.

    2. When using the GTS:


      1. Connect the GTS to the DLC3.

      2. Turn the power switch on (IG).

      3. Enter the following menus: Powertrain / Hybrid Control / Active Test / Activate the Inverter Water Pump.


        1. Powertrain > Hybrid Control > Active Test
          Tester Display
          Activate the Inverter Water Pump




      4. While adding coolant to the inverter reserve tank assembly to keep the coolant at the FULL line and compensate for the drop in the coolant level as the air bleeds, operate and stop the inverter water pump assembly at 1 minute intervals.

        Standard
        Air bleeding from the inverter cooling system is completed when the noise made by the inverter water pump assembly becomes smaller and the circulation of coolant in the inverter reserve tank assembly improves.
        Tip:

        Loud noises made by the inverter water pump assembly and poor circulation of coolant in the inverter reserve tank assembly indicate that there is air in the cooling system.

    3. When not using the GTS:


      1. Turn the power switch on (READY). [*1]

      2. Turn the power switch off and add coolant to the FULL line as the coolant level will drop as the air bleeds. [*2]

        Note:

        • Be sure to turn the power switch off before adding SLLC.

        • Do not work on the components in the engine compartment while the power switch is on (READY) as the engine will operate intermittently.

      3. Repeat steps [*1] and [*2] until air bleeding from the cooling system is completed.

        Standard
        Air bleeding from the inverter cooling system is completed when the noise made by the inverter water pump assembly becomes smaller and the circulation of coolant in the inverter reserve tank assembly improves.
        Tip:

        Loud noises made by the inverter water pump assembly and poor circulation of coolant in the inverter reserve tank assembly indicate that there is air in the cooling system.

    4. B004TMP

      After the air is completely bled from the cooling system, add coolant to the FULL line of inverter reserve tank assembly and install the reserve tank cap.

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    INSPECT FOR COOLANT LEAK (for Inverter)

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    INSTALL OIL PAN PROTECTOR


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    INSTALL LOWER RADIATOR AIR DEFLECTOR

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    INSTALL RADIATOR COVER PLATE

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  12. Click here

    INSTALL UPPER RADIATOR SUPPORT SEAL

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