LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2025 >> NX 350 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> ECM >> Installation [11/2021 - ] >> Caution / Notice / Hint
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Caution / Notice / Hint

NOTE:
  • After replacing the ECM, make sure to perform vehicle identification number (VIN) registration, ECU configuration and update ECU security key.
  • After performing the vehicle identification number (VIN) registration, ECU configuration procedure 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 (-) battery terminal.


COMPONENTS (INSTALLATION) 

Fig 1: ECM Installation Components With Torque Specifications
GTY1132711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 NO. 2 ECM BRACKET 89668 - - -
2 NO. 1 ECM BRACKET 89667E - - -
3 ECM 89661 See step  3 - -
4 AIR CLEANER ASSEMBLY 17700 See step  4 - -
5 INLET AIR CLEANER ASSEMBLY 17750A See step  5 - -
6 RADIATOR UPPER AIR GUIDE PLATE 16681A - - -
7 NEGATIVE BATTERY TERMINAL - - - -
8 VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION - - - See step  8
9 ECU CONFIGURATION - - - See step  9
10 UPDATE ECU SECURITY KEY - - - See step  10
11 PERFORM INITIALIZATION - - - See step  11
12 INITIALIZATION AFTER RECONNECTING BATTERY TERMINAL - - - Refer to INSTALLATION [11/2021 - ] 
*A Type A *B Type B
N.m (kgf/cm, ft.lbf): Specified torque - -
*T1 Type A: 3.0 N.m (31 kgf/cm, 27 in.lbf)
Type B: 4.5 N.m (46 kgf/cm, 40 in.lbf)
- -