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Caution / Notice / Hint

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • After replacing the ECM, make sure to perform vehicle identification number (VIN) registration and update ECU security key.
  • After performing the vehicle identification number (VIN) registration and update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal.


COMPONENTS (INSTALLATION) 

Fig 1: ECM Installation Components With Torque Specifications (1 Of 2)
GTY1235984Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 NO. 2 ECM BRACKET 89668 - - -
2 NO. 1 ECM BRACKET 89667E - - -
3 ECM 89661 See step  3 - -
N.m (kgf/cm, ft.lbf): Specified torque - -
Fig 2: ECM Installation Components (2 Of 2)
GTY1235688Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
4 NEGATIVE AUXILIARY BATTERY TERMINAL - - - -
5 BATTERY SERVICE HOLE COVER 58441L - - -
6 DECK BOARD ASSEMBLY 58410B - - -
7 VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION - - - See step  7
8 UPDATE ECU SECURITY KEY - - - See step  8
9 INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL - - - See step  9