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HOMESERVICE MANUALSTOYOTA2025SEQUOIA CAPSTONEREPAIR AND DIAGNOSISELECTRICALBODY ELECTRICALPOWER DISTRIBUTION SYSTEM - SERVICE INFORMATIONINTEGRATION RELAYINSTALLATION [09/2022 - ]PROCEDURE
2025 Toyota Sequoia Capstone

Installation [09/2022 - ]: Procedure

2025 Toyota Sequoia CapstoneSECTION Procedure
  1. INSTALL SEMICONDUCTOR POWER INTEGRATION ECU 
    1. GTY1100498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Install in this Direction - -
      1. Attach the claw to connect the lever connector.
        NOTE:

        Be sure to connect the lever connector securely.

      2. Connect the power line connector.
      3. Attach the claw to install the semiconductor power integration ECU as shown in the illustration.
  2. INSTALL NO. 1 RELAY BLOCK COVER 
  3. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to INSTALLATION [09/2022 - ]

  4. 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 [09/2022 - ]

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.