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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Hybrid Battery Control System - Service Information (2 Of 3)) >> HV BATTERY (for 1Motor-HEV Model) >> Charging [09/2023 - ] >> Procedure

Charging [09/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage.

      Standard Voltage

      Approximately 11 V or more

      HINT: 

      • The horn should sound clearly.
      • If the voltage is 10 V or less, either charge the auxiliary battery (charging usually takes about 1 hour), or replace it with an auxiliary battery that is already charged.
  2. PREPARATION FOR HV BATTERY CHARGING 
    WARNING:
    • The hybrid system has high-voltage circuits. Accidents, such as electric shock, or electric leaks may result if the hybrid system is not operated in a correct manner. Make sure to follow the correct procedure.

      Refer to PRECAUTION [09/2023 - ]

    • Be sure to wear insulated gloves.

    HINT: 

    • Removing the service plug grip interrupts the high voltage circuit.
    • High voltage wiring connectors are orange.
    1. Check the charge level of the HV battery.
      1. If the hybrid system fails to start and "Traction Battery Needs to be Protected Shift into P to Restart" is displayed on the multi-information display, the HV battery may be discharged.
      2. Confirm if the engine starts. If the engine starts, leave it idling with the shift lever in P until the engine stops (self charge has completed).

        If the engine cannot start, charge the HV battery.

        HINT: 

        • Before performing external charging, always use the GTS to perform troubleshooting.
        • Charging time using the THS charger is 10 minutes per charge cycle. The charging time when using a THS charger is a short charging time (when the HV battery temperature is 25°C (77°F), 10 minutes may be sufficient, if the HV battery temperature is 0°C (32°F), then three 10 minute charge cycles may be required) for putting the engine in a condition where it can be started (the system can enter the READY-on state). (The THS charger will automatically stop 10 minutes after charging starts.)
    2. Remove the service plug grip.

      Refer to REMOVAL [09/2023 - ]

    3. Check the terminal voltage.

      Refer to REMOVAL [09/2023 - ] 

      HINT: 

      When performing Check Terminal Voltage when referring to the procedure to remove the HV battery, make sure to reinstall the components that were removed during the Check Terminal Voltage procedure.

    4. Remove the rear seat assembly.
    5. Remove the rear No. 2 seat assembly.

      Refer to REMOVAL [09/2023 - 12/2023] , or refer to REMOVAL [12/2023 - ]

    6. for Captain Seat Type:

      Remove the No. 3 console box mounting bracket.

      See step  21

    7. for Captain Seat Type:

      Remove the No. 4 console box mounting bracket.

      See step  22

    8. Remove the front floor carpet assembly.

      Refer to REMOVAL [09/2023 - ] 

    9. Remove the No. 1 rear floor silencer.

      Refer to REMOVAL [09/2023 - ] 

    10. Remove the No. 6 HV battery shield sub-assembly.

      See step  23

    11. Disconnect the floor wire connector.
      GTY1133690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. Disconnect the No. 2 HV floor under wire and HV battery charger wire.
      1. Using an insulated tool, remove the 6 nuts and disconnect the No. 2 HV floor under wire and HV battery charger wire.
        GTY1133339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Storage Bag
        NOTE:
        • Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.
        • After separating the HV battery charger wire and No. 2 floor under wire, store them in the SST storage bag.
        • SST: 09882-10100 
      2. Close the cover of No. 2 traction battery device box.
        GTY1133425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Connect the connector.
        GTY1133366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    13. Inspect the electrical insulation of the HV battery.
      1. GTY1133201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Service Plug Grip Removed
        (Service Plug Grip Connecting Terminals)

        Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

        NOTE:

        Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 - Body ground Ignition switch off 10 MΩ or higher
        2 - Body ground Ignition switch off 10 MΩ or higher
      2. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
        NOTE:

        Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

        GTY1130155Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (No. 2 Traction Battery Device Box)

        Standard Resistance

        Tester Connection Condition Specified Condition
        H71-1 (CBP) - Body ground Ignition switch off 10 MΩ or higher
        H73-1 (CEP) - Body ground Ignition switch off 10 MΩ or higher
    14. Connect the THS charger in the order shown in the illustration.
      GTY1239843Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 HV Battery *2 No. 6 HV Battery Shield Sub-assembly
      *a EV Bonding Cable (Green Cable) *b Low Voltage Cable
      *c High Voltage Cable *d Power Input Plug
      *e Grounded AC 100 to 240 V Receptacle *f THS Charger
      NOTE:

      Connect all of the THS charger cables in the order shown in the illustration to prevent electrical shock.

    15. Connect the 2 SST (high voltage cable) connectors to the No. 2 traction battery device box.
      GTY1130694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09882-10100 
    16. Temporarily install the No. 6 HV battery shield sub-assembly with the nut and bolts.
      GTY1131524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a SST (high voltage cable)
      *b SST (EV bonding cable (green cable))

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

      NOTE:

      Be careful not to pinch SST (high voltage cable).

    17. Connect the SST (high voltage cable) terminal to the position shown in the illustration with the bolt.

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    18. Connect the SST (EV bonding cable (green cable)) terminal to the position shown in the illustration with the nut.
      • SST: 09882-10070 

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    19. Connect the SST (EV bonding cable (green cable)) terminal to SST (THS charger).
      GTY758574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a EV Bonding Cable (Green Cable)
      *b THS Charger
      • SST: 09880-10021 
        1. 09881-10041
    20. Connect the SST (low voltage cable) terminal to the position shown in the illustration with the nut.
      GTY1133676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    21. Connect SST (low voltage cable) and SST (high voltage cable) to SST (THS charger) in the order shown in the illustration.
      GTY764760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Low Voltage Cable
      *b High Voltage Cable
      *c THS Charger
      *d Power Input Plug
    22. Install the service plug grip.

      Refer to INSTALLATION [09/2023 - ]

    23. Connect the cable to the negative (-) auxiliary battery terminal.

      Refer to PROCEDURE - Step 6

    24. Connect SST (power input plug) of SST (THS charger) to a grounded AC 100 to 240 V receptacle.
      • SST: 09881-1008109881-1009009881-10050 
      NOTE:

      Always use an AC 100 to 240 V receptacle with a properly functioning ground. The ground is designed to reduce the chance of electric shock if a malfunction occurs. Do not use the charger if any of the pins on its plug have been damaged or removed.

  3. PREPARATION FOR HV BATTERY CHARGING (Using GRX-5100T) 
    WARNING:
    • The hybrid system has high-voltage circuits. Accidents, such as electric shock, or electric leaks may result if the hybrid system is not operated in a correct manner. Make sure to follow the correct procedure.

      Refer to PRECAUTION [09/2023 - ]

    • Be sure to wear insulated gloves.

    HINT: 

    • Removing the service plug grip interrupts the high voltage circuit.
    • High voltage wiring connectors are orange.
    1. Check the charge level of the HV battery.
      1. If the hybrid system fails to start and "Traction Battery Needs to be Protected Shift into P to Restart" is displayed on the multi-information display, the HV battery may be discharged.
      2. Confirm if the engine starts. If the engine starts, leave it idling with the shift lever in P until the engine stops (self charge has completed).

        If the engine cannot start, charge the HV battery.

        HINT: 

        • Before performing external charging, always use the GTS to perform troubleshooting.
        • Charging time using the GRX-5100T is 10 minutes per charge cycle. The charging time when using a GRX-5100T is a short charging time (when the battery temperature is 25°C (77°F), 10 minutes may be sufficient, if the battery temperature is 0°C (32°F), then three 10 minute charge cycles may be required) for putting the engine in a condition where it can be started (the system can enter the READY-on state). (The GRX-5100T will automatically stop 10 minutes after charging starts.)
    2. Remove the service plug grip.

      Refer to REMOVAL [09/2023 - ]

    3. Check the terminal voltage.

      Refer to REMOVAL [09/2023 - ] 

      HINT: 

      When performing Check Terminal Voltage when referring to the procedure to remove the HV battery, make sure to reinstall the components that were removed during the Check Terminal Voltage procedure.

    4. Remove the rear seat assembly.
    5. Remove the rear No. 2 seat assembly.

      Refer to REMOVAL [09/2023 - 12/2023] , or refer to REMOVAL [12/2023 - ]

    6. for Captain Seat Type:

      Remove the No. 3 console box mounting bracket.

      See step  21

    7. for Captain Seat Type:

      Remove the No. 4 console box mounting bracket.

      See step  22

    8. Remove the front floor carpet assembly.

      Refer to REMOVAL [09/2023 - ] 

    9. Remove the No. 1 rear floor silencer.

      Refer to REMOVAL [09/2023 - ] 

    10. Remove the No. 6 HV battery shield sub-assembly.

      See step  23

    11. Disconnect the floor wire connector.
      GTY1133690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. Disconnect the No. 2 HV floor under wire.

      See step  47

    13. Disconnect the HV battery charger wire.
      1. Using an insulated tool, remove the 3 nuts and disconnect the HV battery charger wire.
        NOTE:

        Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.

        GTY1133424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Close the cover of No. 2 traction battery device box.
        GTY1133425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Connect the connector.
        GTY1133366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    14. Inspect the electrical insulation of the HV battery.
      1. GTY1133201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Service Plug Grip Removed
        (Service Plug Grip Connecting Terminals)

        Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.

        NOTE:

        Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 - Body ground Ignition switch off 10 MΩ or higher
        2 - Body ground Ignition switch off 10 MΩ or higher
      2. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
        NOTE:

        Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

        GTY1130155Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (No. 2 Traction Battery Device Box)

        Standard Resistance

        Tester Connection Condition Specified Condition
        H71-1 (CBP) - Body ground Ignition switch off 10 MΩ or higher
        H73-1 (CEP) - Body ground Ignition switch off 10 MΩ or higher
    15. Connect the GRX-5100T in the order shown in the illustration.
      GTY1229361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 HV Battery *2 No. 6 HV Battery Shield Sub-assembly
      *a Pack High Voltage Harness *b Banana Jack Combined Harness
      *c Banana Jack Combined Harness *d Low Voltage Harness
      *e Grounded AC 100 to 240 V Receptacle *f GRX-5100T
      NOTE:

      Connect all of the GRX-5100T cables in the order shown in the illustration to prevent electrical shock.

    16. Connect the pack high voltage harness connectors to the No. 2 traction battery device box.
      GTY1132483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    17. Connect the banana jack combined harness to the HV battery as shown in the illustration, with the red cable connected to the positive (+) battery side and the black cable connected to the negative (-) battery side.
      GTY1130315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Positive (+) Battery Side
      *b Negative (-) Battery Side

      HINT: 

      If the positive (+) battery cable and negative (-) battery cable are connected in reverse, the GRX-5100T will detect an error and charging will not start.

    18. Temporarily install the No. 6 HV battery shield sub-assembly with the nut and bolts.
      GTY1132486Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    19. Connect the banana jack combined harness terminal to the position shown in the illustration with the bolt.

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    20. Connect the low voltage cable terminal to the position shown in the illustration.
      GTY1129830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    21. Connect the universal HV cable and low voltage harness terminals to GRX-5100T.
    22. Install the service plug grip.

      Refer to PROCEDURE - Step 1

    23. Connect the cable to the negative (-) auxiliary battery terminal.

      Refer to INSTALLATION [09/2023 - ]

    24. Connect GRX-5100T to a grounded AC 100 to 240 V receptacle.
      NOTE:

      Always use an AC 100 to 240 V receptacle with a properly functioning ground. The ground is designed to reduce the chance of electric shock if a malfunction occurs. Do not use the GRX-5100T if any of the pins on its plug have been damaged or removed.

  4. HV BATTERY CHARGING 
    1. Enter the following menus: Powertrain / Hybrid Control / Active Test / Hybrid/EV Battery Charge

      Powertrain > Hybrid Control > Active Test 

      Active Test Display
      Hybrid/EV Battery Charge
      Data List Display
      SMRG Status
      SMRB Status

      HINT: 

      • While performing the "Hybrid/EV Battery Charge" Active Test, check the Data List items "SMRB Status" and "SMRG Status".
      • If the values of the Data List items are not as specified in the table below, turn the GTS and the ignition switch off and then perform the HV battery charging procedure again.

      "SMRB Status" and "SMRG Status" in Data List during "Hybrid Battery Charge" Active Test

      Step Active Test
      "Hybrid/EV Battery Charge"      		 THS charger START
      Switch      		 Data List
      "SMRB status"      		 Data List
      "SMRG Status"
      1 OFF OFF OFF OFF
      2 OFF → ON OFF OFF → ON OFF → ON
      3 ON OFF → ON ON ON
    2. Make sure that the EMERGENCY STOP switch is in the reset condition (the switch is turned clockwise and released).
    3. Make sure that the BREAKER is in the ON position.
    4. Turn the THS charger MAIN switch on.
      GTY315353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      The MAIN indicator will illuminate (green).

    5. Press the START switch.
      GTY322006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      • When the START switch is turned on, the INITIAL CHECK indicator illuminates and an initial check starts. When the initial check completes successfully, the INITIAL CHECK indicator turns off, the CHARGING indicator illuminates and charging will start at the same time.
      • While the INITIAL CHECK indicator is illuminated, the insulation, 400 V output, emergency stop switch, connector connections and ground connection are inspected.
    6. Repeat the charge cycle 3 times. When the last cycle has finished, turn the THS charger MAIN switch off.

      HINT: 

      • Charging time using the THS charger is 10 minutes per charge cycle. The charging time when using a THS charger is a short charging time (when the battery temperature is 25°C (77°F), 10 minutes may be sufficient, if the battery temperature is 0°C (32°F), then three 10 minute charge cycles may be required) for putting the engine in a condition where it can be started (the system can enter the READY-on state). (The THS charger will automatically stop 10 minutes after charging starts.)
      • There is very little chance of overcharging the HV battery during the second or third charging cycle. The SOC will not likely increase beyond the upper limit because it was low enough to prevent the engine from starting. Even if the SOC was to increase enough to exceed the limit, the hybrid vehicle control ECU will stop the Active Test to prevent overcharging.
      • Cranking the engine once causes the SOC to drop approximately 1%.
      • Charging the HV battery once (10 minutes) using the THS charger restores the SOC approximately 2%.
    7. Turn the ignition switch off.
    8. Remove the THS charger and connect the HV floor under wire (for HV Battery).
      1. Disconnect SST (power inlet plug) of SST (THS charger) from the grounded AC 100 to 240 V receptacle.
      2. Disconnect the cable from the negative (-) auxiliary battery terminal.

        Refer to PROCEDURE - Step 4

      3. Remove the service plug grip.

        Refer to REMOVAL [09/2023 - ]

      4. Disconnect SST (high voltage cable) and SST (low voltage cable) from SST (THS charger) in the order shown in the illustration.
        GTY763062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Low Voltage Cable
        *b High Voltage Cable
        *c THS Charger
      5. Remove the nut and disconnect the SST (low voltage cable) terminal.
        GTY1133676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. Disconnect the SST (EV bonding cable (green cable)) terminal from SST (THS charger).
        GTY758573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a EV Bonding Cable (Green Cable)
        *b THS Charger
      7. Remove the nut and disconnect the SST (EV bonding cable (green cable)) terminal.
        GTY1131524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a SST (high voltage cable)
        *b SST (EV bonding cable (green cable))
      8. Remove the bolt and disconnect the SST (high voltage cable) terminal.
      9. Remove the bolt and No. 6 HV battery shield sub-assembly.
      10. Disconnect the 2 SST (high voltage cable) connectors from the No. 2 traction battery device box.
        GTY1130694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      11. Connect the floor wire connector.
      12. Disconnect the connector.
        GTY1133366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      13. Connect the HV battery charger wire.

        See step  9

      14. Connect the No. 2 HV floor under wire.

        See step  8

      15. Connect the floor wire connector.
        GTY1133690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      16. Install the No. 6 HV battery shield sub-assembly.

        See step  11

      17. Install the service plug grip.

        Refer to INSTALLATION [09/2023 - ]

    9. Turn the ignition switch to ON (READY) and check if the engine starts.

      HINT: 

      If the engine does not start, perform the HV battery charging operation again.

    10. Install the No. 1 rear floor silencer.
    11. Install the front floor carpet assembly.
    12. for Captain Seat Type:

      Install the No. 4 console box mounting bracket.

    13. for Captain Seat Type:

      Install the No. 3 console box mounting bracket.

    14. Install the rear No. 2 seat assembly.

      Refer to INSTALLATION [09/2023 - 12/2023] , or refer to INSTALLATION [12/2023 - ]

    15. Install the rear seat assembly.
  5. HV BATTERY CHARGING (Using GRX-5100T) 
    1. Enter the following menus: Powertrain / Hybrid Control / Active Test / Hybrid/EV Battery Charge

      Powertrain > Hybrid Control > Active Test 

      Active Test Display
      Hybrid/EV Battery Charge
      Data List Display
      SMRG Status
      SMRB Status

      HINT: 

      While performing the "Hybrid/EV Battery Charge" Active Test, check the Data List items "SMRB Status" and "SMRG Status".

    2. Move to "RESCUE CHARGE" by arrow key then press "SELECT".
      GTY1131477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Press "YES".
      GTY1131476Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Press "NEXT".
      GTY1131475Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Press "YES".
      GTY1131480Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Press "NEXT".
      GTY1130035Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Press "NEXT".
      GTY1131479Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Press "NEXT".
      GTY1131484Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Please wait for a while.
      GTY1130036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. Press "NEXT".
      GTY1131483Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. Please wait for a while.
      GTY1131482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    12. Close SMR by the "Battery Charge" Active Test, then press "NEXT" on the GRX-5100T to start HV battery charging.
      GTY1131481Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      • Charging condition status will be displayed on the screen of GRX-5100T while HV battery charging.
      • While HV battery charging, voltage and charge current will be recorded in thumb nail drive.
      • The GRX-5100T will automatically stop 10 minutes after charging starts with beep sound. As soon as The GRX-5100T stops the charging, SMRs are also automatically open.
      • If the values of the Data List items are not as specified in the table below, turn the GTS and the ignition switch off and then perform the HV battery charging procedure again.

      "SMRB Status" and "SMRG Status" in Data List during "Hybrid Battery Charge" Active Test

      Step Active Test
      "Hybrid/EV Battery Charge"      		 THS charger START
      Switch      		 Data List
      "SMRB status"      		 Data List
      "SMRG Status"
      1 OFF OFF OFF OFF
      2 OFF → ON OFF OFF → ON OFF → ON
      3 ON OFF → ON ON ON
    13. Repeat the charge cycle 3 times, if required. When the last cycle has finished, turn the GRX-5100T MAIN switch off.

      HINT: 

      • Charging time using the GRX-5100T is 10 minutes per charge cycle. The charging time when using a GRX-5100T is a short charging time (when the battery temperature is 25°C (77°F), 10 minutes may be sufficient, if the battery temperature is 0°C (32°F), then three 10 minute charge cycles may be required) for putting the engine in a condition where it can be started (the system can enter the READY-on state).
      • There is very little chance of overcharging the HV battery during the second or third charging cycle. The SOC will not likely increase beyond the upper limit because it was low enough to prevent the engine from starting. Even if the SOC was to increase enough to exceed the limit, the hybrid vehicle control ECU will stop the Active Test to prevent overcharging.
      • Cranking the engine once causes the SOC to drop approximately 1%.
      • Charging the HV battery once (10 minutes) using the GRX-5100T restores the SOC approximately 2%.
    14. Turn the ignition switch off.
    15. Remove the GRX-5100T and connect the HV battery charger wire and No. 2 HV floor under wire.
      1. Disconnect power inlet plug of GRX-5100T from the grounded AC 100 to 240 V receptacle.
      2. Disconnect the cable from the negative (-) auxiliary battery terminal.

        Refer to REMOVAL [09/2023 - ]

      3. Remove the service plug grip.

        Refer to REMOVAL [09/2023 - ]

      4. Disconnect the high voltage cable and low voltage cable from GRX-5100T.
      5. Disconnect the connector.
        GTY1133366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. Connect the HV battery charger wire.

        See step  9

      7. Connect the No. 2 HV floor under wire.

        See step  8

      8. Connect the floor wire connector.
        GTY1133690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      9. Install the No. 6 HV battery shield sub-assembly.

        See step  11

      10. Install the service plug grip.

        Refer to INSTALLATION [09/2023 - ]

    16. Turn the ignition switch to ON (READY) and check if the engine starts.

      HINT: 

      If the engine does not start, perform the HV battery charging operation again.

    17. Install the No. 1 rear floor silencer.
    18. Install the front floor carpet assembly.
    19. for Captain Seat Type:

      Install the No. 4 console box mounting bracket.

    20. for Captain Seat Type:

      Install the No. 3 console box mounting bracket.

    21. Install the rear No. 2 seat assembly.

      Refer to INSTALLATION [09/2023 - 12/2023] , or refer to INSTALLATION [12/2023 - ]

    22. Install the rear seat assembly.
  6. CHECK HV BATTERY AFTER HV BATTERY CHARGE 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [09/2023 - ]

    2. Perform the self-charging operation.
      1. Start the engine and leave it idling with the shift lever in P until the engine stops.

        HINT: 

        When the engine stops idling, this indicates that self-charging is complete. Perform any initialization procedures required after the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal.

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