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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Hybrid Battery Control System - Service Information (2 Of 2)) >> HV Relay Assembly >> Installation [11/2023 - ] >> Procedure

Installation [11/2023 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSTALL HV BATTERY JUNCTION BLOCK ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    1. Install the HV battery junction block assembly to the HV battery with the 4 nuts.

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

      NOTE:

      If the HV battery junction block assembly has been struck or dropped, replace it with a new one.

    2. Connect the HV battery junction block assembly connector.
      NOTE:

      Make sure that the connector is connected securely.

    3. Connect the HV battery junction block assembly connector.
      NOTE:

      Make sure that the connector is connected securely.

    4. Connect the HV battery junction block assembly connector.
      NOTE:

      Make sure that the connector is connected securely.

  2. CONNECT FLOOR WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    1. w/ 1500w Voltage Inverter
      1. Connect the shield ground with the nut.

        Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

      2. Engage the claw.
      3. Connect the 2 HV battery junction block assembly connectors.
        NOTE:

        Make sure that the connectors are connected securely.

    2. Connect the HV battery junction block assembly connector.
      NOTE:

      Make sure that the connectors are connected securely.

    3. Engage the clamp.
  3. CONNECT FLOOR UNDER WIRE 

    Refer to PROCEDURE - Step 10

  4. INSTALL NO. 10 HV BATTERY SHIELD PANEL 

    Refer to PROCEDURE - Step 11

  5. INSTALL REAR FLOOR SILENCER 

    See step  7

  6. INSTALL FRONT FLOOR CARPET ASSEMBLY 

    See step  8

  7. INSTALL REAR CONSOLE BOX ASSEMBLY (for Captain Seat Type) 

    Refer to INSTALLATION [12/2019 - ]

  8. INSTALL REAR NO. 1 SEAT ASSEMBLY (for Captain Seat Type) 

    Refer to INSTALLATION [12/2019 - ]

  9. INSTALL REAR NO. 1 SEAT ASSEMBLY LH (for 60/40 Split Seat Type) 

    Refer to INSTALLATION [12/2019 - ]

  10. INSTALL REAR NO. 1 SEAT ASSEMBLY RH (for 60/40 Split Seat Type) 

    Refer to INSTALLATION [12/2019 - ]

  11. INSTALL SERVICE PLUG GRIP 

    Refer to INSTALLATION [11/2023 - ] 

  12. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL 

    HINT: 

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [11/2023 - ]

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