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Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. 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 engine 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 ECM Update ECU security key Vehicle Control History (RoB) are stored Refer to UPDATE ECU SECURITY KEY [11/2021 - ]
Perform Vehicle Identification Number (VIN) registration DTC is output Refer to REGISTRATION [11/2021 - ]
  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired
 Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
 Refer to INITIALIZATION [11/2021 - ]
Replacement of inverter with converter assembly Resolver learning
  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration
 Refer to UTILITY [11/2021 - ]
Replacement of hybrid vehicle transaxle assembly
  • Resolver learning
  • Initialize resolver
Tires
  • Initialization*2*3
  • Tire Position Identification*2*3
 Tire Pressure Warning System Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below
Refer to WORK PROCEDURE [03/2024 - ]
Rear television camera assembly optical axis (Back camera position setting) Parking Assist Monitor System Refer to CALIBRATION [11/2021 - ]
Parking assist ECU initialization Panoramic View Monitor System Refer to CALIBRATION [03/2024 - ]
Advanced Park Refer to CALIBRATION [03/2024 - ]
Wheel alignment adjustment Perform "Calibration"
  • DTCs are stored
  • ABS warning light illuminates
  • Brake system warning light (yellow indicator) illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system does not operate correctly
 Refer to RESET MEMORY / CALIBRATION [11/2021 - ]
Steering intermediate shaft assembly*4 Automatic rack centering - Refer to AUTOMATIC RACK CENTERING [11/2021 - ]
Replacement of front bumper assembly*1 Front television camera view adjustment Panoramic View Monitor System Refer to CALIBRATION [03/2024 - ]
Advanced Park Refer to CALIBRATION [03/2024 - ]
Suspension parts Rear television camera assembly optical axis (Back camera position setting) Parking Assist Monitor System Refer to CALIBRATION [11/2021 - ]
Parking assist ECU initialization Panoramic View Monitor System Refer to CALIBRATION [03/2024 - ]
Advanced Park Refer to CALIBRATION [03/2024 - ]
Perform headlight ECU sub-assembly LH initialization Lighting System (w/ Automatic Headlight Beam Level Control System) Refer to INITIALIZATION [03/2022 - ]

*1: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.

*2: Also necessary after performing a tire rotation.

*3: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location.

*4: If matchmarks were not placed when removing parts related to steering operation, perform automatic rack centering.

WARNING:
  • The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the repair information, or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.
    GTY566510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a An Object Exceeding Weight Limit of Engine Lifter
  • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    GTY563663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:
  • When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.
  • To prevent the key from being locked in the vehicle, make sure to enter e-latch inspection mode and enable the manual release handle before disconnecting the cable from the negative (-) auxiliary battery terminal.

    Refer to INSPECTION MODE PROCEDURE [11/2021 - ]

HINT: 

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

LEARNING COMPLETES WHEN VEHICLE IS DRIVEN

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Lighting System (EXT) Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more. Refer to INITIALIZATION [11/2021 - ]
Front Camera System
Adaptive High Beam System
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
E-latch System
  • Back door opener
 Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. Refer to INITIALIZATION [11/2021 - ]
Power Back Door System Reset back door close position Refer to INITIALIZATION [11/2021 - ]
Air Conditioning System After the ignition switch is turned to ON, the servo motor standard position is recognized. -


COMPONENTS (REMOVAL) 

Fig 1: Engine Assembly Removal Components [03/2024 - ] (1 Of 9)
GTY1075515Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 PRECAUTION - See step  1 - -
2 RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM - - See step  2 -
3 DISCHARGE FUEL SYSTEM PRESSURE - See step  3 - -
4 ALIGN FRONT WHEELS FACING STRAIGHT AHEAD - See step  4 - -
5 SECURE STEERING WHEEL - See step  5 - -
6 FRONT WHEELS - - - -
7 FRONT FENDER FRONT SPLASH SHIELD LH 53896B - - -
8 FRONT FENDER FRONT SPLASH SHIELD RH 53895B - - -
9 NO. 1 ENGINE UNDER COVER 51441 - - -
10 NO. 2 ENGINE UNDER COVER ASSEMBLY 51420 - - -
11 FRONT FENDER APRON SEAL LH 53737B - - -
12 FRONT FENDER APRON SEAL RH 53736 - - -
Fig 2: Engine Assembly Removal Components [03/2024 - ] (2 Of 9)
GTY1074958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
13 FRONT BUMPER ASSEMBLY - - - -
14 FRONT BUMPER LOWER ABSORBER 52618 - - -
15 NO. 2 FRONT BUMPER REINFORCEMENT 52132A - - -
Fig 3: Engine Assembly Removal Components [03/2024 - ] (3 Of 9)
GTY1254659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
16 DRAIN ENGINE COOLANT (for Engine) - - See step  16 -
17 DRAIN ENGINE OIL - - See step  17 -
18 DRAIN HYBRID TRANSAXLE FLUID - - See step  18 -
19 NO. 1 ENGINE COVER SUB-ASSEMBLY 12601B See step  19 - -
20 INVERTER WITH CONVERTER ASSEMBLY G92A0 - - -
21 FUEL VAPOR FEED HOSE ASSEMBLY 23820 - - -
22 OUTLET HEATER WATER HOSE 87246 See step  22 - -
23 INLET HEATER WATER HOSE 87245 See step  23 - -
24 FUEL TUBE SUB-ASSEMBLY 23901 See step  24 - -
25 NO. 1 RADIATOR HOSE 16571C - - -
26 NO. 2 RADIATOR HOSE 16572D - - -
27 SUCTION HOSE SUB-ASSEMBLY 88704 See step  27 - -
28 DISCHARGE HOSE SUB-ASSEMBLY 88703 See step  28 - -
29 WIRE HARNESS - See step  29 - -
30 NO. 5 INVERTER COOLING HOSE G9229A - - -
31 NO. 5 WATER BY-PASS HOSE 16282F - - -
32 STEERING INTERMEDIATE SHAFT ASSEMBLY 45220 See step  32 - -
*1 NO. 1 RELAY BLOCK COVER *2 NO. 1 FUEL PIPE CLAMP
• Non-reusable part - -
Fig 4: Engine Assembly Removal Components [03/2024 - ] (4 Of 9)
GTY1254692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
33 ENGINE UNDER COVER HEAT INSULATOR 51468B - - -
34 FRONT FLOOR COVER LH 58166A See step  34 - -
35 FRONT FLOOR COVER RH 58165C See step  35 - -
36 FRONT CENTER FLOOR COVER RH 58167D - - -
Fig 5: Engine Assembly Removal Components [03/2024 - ] (5 Of 9)
GTY1254861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
37 FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 17410 See step  37 - -
• Non-reusable part - -
Fig 6: Engine Assembly Removal Components [03/2024 - ] (6 Of 9)
GTY1253966Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
38 FRONT DRIVE SHAFT ASSEMBLY - - - -
39 TIE ROD ASSEMBLY LH 45470 See step  39 - -
40 TIE ROD ASSEMBLY RH 45460 See step  40 - -
41 ENGINE ASSEMBLY WITH TRANSAXLE - See step  41 - -
*A w/ Suspension Tower Damper *B for Nut Type A
*C for Nut Type B - -
*1 FRONT BUMPER EXTENSION SUB-ASSEMBLY LH *2 FRONT BUMPER EXTENSION SUB-ASSEMBLY RH
*3 FRONT SUSPENSION MEMBER BRACE REAR LH *4 FRONT SUSPENSION MEMBER BRACE REAR RH
*5 ENGINE MOUNTING STAY LH *6 SUSPENSION TOWER DAMPER
*7 COTTER PIN - -
• Non-reusable part - -
Fig 7: Engine Assembly Removal Components With Torque Specifications [03/2024 - ] (7 Of 9)
GTY1254297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
42 FUEL DELIVERY GUARD 23825A - - -
43 INSTALL ENGINE HANGERS - See step  43 - -
44 STEERING GEAR HEAT INSULATOR 45319 - - -
45 DISCONNECT ENGINE WIRE 82121 See step  45 - -
46 FLYWHEEL HOUSING UNDER COVER 11361J - - -
47 HV AIR CONDITIONING WIRE 821H2 See step  47 - -
48 STARTER HOLE INSULATOR 28193 - - -
49 FLYWHEEL HOUSING SIDE COVER 11363A - - -
50 FRONT FRAME ASSEMBLY 51100G - - -
51 FRONT ENGINE MOUNTING INSULATOR 12361A - - -
52 REAR ENGINE MOUNTING INSULATOR 12371A - - -
N.m (kgf/cm, ft.lbf): Specified torque - -
Fig 8: Engine Assembly Removal Components [03/2024 - ] (8 Of 9)
GTY1253917Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
53 HYBRID VEHICLE TRANSAXLE ASSEMBLY 30900 See step  53 - -
54 TRANSMISSION INPUT DAMPER ASSEMBLY 31270 See step  54 - -
55 FLYWHEEL SUB-ASSEMBLY 13405 See step  55 - -
56 NO. 1 CRANKSHAFT POSITION SENSOR PLATE 19315 - - -
57 REMOVE ENGINE WIRE 82121 - - -
58 INSTALL ENGINE ASSEMBLY TO ENGINE STAND - See step  58 - -
59 REMOVE ENGINE HANGERS - - - -
• Non-reusable part * Precoated part
Fig 9: Engine Assembly Removal Components [03/2024 - ] (9 Of 9)
GTY1253971Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
60 INVERTER RESERVE TANK ASSEMBLY G910GB - - -
61 ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH 12305 - - -
62 ENGINE MOUNTING SPACER 12341 - - -
63 ENGINE MOUNTING INSULATOR SUB-ASSEMBLY LH 12306 - - -
*1 RADIATOR RESERVE TANK ASSEMBLY *2 NO. 2 EARTH WIRE
*3 SUCTION PIPE SUB-ASSEMBLY *4 AIR CONDITIONING TUBE ASSEMBLY
*5 ENGINE ROOM MAIN WIRE *6 NO. 1 INVERTER RESERVE TANK BRACKET
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