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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Hybrid Battery Control System - Service Information (1 Of 3)) >> Hybrid Vehicle Control Ecu >> Installation [12/2023 - ] >> Procedure

Installation [12/2023 - ]: 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. INSTALL HYBRID VEHICLE CONTROL ECU ASSEMBLY 
  2. INSTALL ECU INTEGRATION BOX LH 

    Refer to INSTALLATION [09/2023 - ]

  3. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 
  4. INSTALL BATTERY SERVICE HOLE COVER 
  5. INSTALL DECK BOARD ASSEMBLY 
  6. ECU CONFIGURATION 

    Refer to ECU CONFIGURATION [09/2023 - ]

  7. UPDATE ECU SECURITY KEY 

    Refer to UPDATE ECU SECURITY KEY [09/2023 - ]

  8. PERFORM INITIALIZATION 

    Refer to WORK PROCEDURE [12/2023 - ]

  9. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL 

    Refer to WORK PROCEDURE [09/2023 - ]

    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 [09/2023 - ]