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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during throttle body with motor assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly
Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [11/2021 - ]
NOTE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Refer to PRECAUTION [11/2021 - ]



COMPONENTS (REMOVAL) 

Fig 1: Throttle Body Removal Components
GTY1077516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 DRAIN ENGINE COOLANT - - See step  1 -
2 RADIATOR UPPER AIR GUIDE PLATE 16681A - - -
3 NO. 1 ENGINE COVER SUB-ASSEMBLY 12601B See step  3 - -
4 INLET AIR CLEANER ASSEMBLY 17750A - - -
5 VACUUM HOSE - - - -
6 NO. 2 VENTILATION HOSE 12262 - - -
7 AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE - - - -
8 NO. 6 WATER BY-PASS HOSE 16283 - - -
9 THROTTLE BODY WITH MOTOR ASSEMBLY 22030 See step  9 - -
10 NO. 5 WATER BY-PASS HOSE 16282 See step  10 - -
11 THROTTLE BODY GASKET 22271 - - -
Non-reusable part - -