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 camshaft 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 Replacement of camshaft timing gear assembly* Replacement of cam timing control motor with EDU assembly* Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing exhaust gear assembly Replacement of fuel (engine room side) pump assembly (for high pressure side) Replacement of ignition coil assembly Replacement of EGR valve assembly Gas leak from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [11/2021 - ]

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

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 - ]
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 (-) battery terminal.
Refer to INSPECTION MODE PROCEDURE [11/2021 - ]

HINT:

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

ITEMS FOR WHICH LEARNING IS COMPLETED BY DRIVING THE VEHICLE

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Front Camera System	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	Refer to INITIALIZATION [11/2021 - ]
Adaptive High Beam System
Lighting System (EXT)
Stop and Start System	Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted.	Refer to PRECAUTION [11/2021 - 03/2023]

ITEMS FOR WHICH LEARNING IS COMPLETED BY OPERATING THE VEHICLE 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: Camshaft Removal Components [11/2021 - 03/2022] (1 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
1	FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY	23100X	-	-	-
2	NO. 2 ENGINE COVER	12602C	-	-	-
3	ENGINE WIRE	82121	-	-	-
4	VACUUM PUMP ASSEMBLY	29300	-	-	-
5	IGNITION COIL ASSEMBLY	19500	See step 5	-	-
6	CAMSHAFT POSITION SENSOR (for Intake Side)	11102A	See step 6	-	-
7	CAMSHAFT POSITION SENSOR (for Exhaust Side)	11102A	See step 7	-	-
8	NO. 2 EARTH WIRE	82286A	-	-	-
9	CAM TIMING OIL CONTROL SOLENOID ASSEMBLY	15370	See step 9	-	-
10	CAM TIMING OIL CONTROL SOLENOID O-RING	15370A	See step 10	-	-
11	CAMSHAFT TIMING VALVE ASSEMBLY	135A0B	See step 11	-	-
12	CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY	13090D	See step 12	-	-
13	CAM TIMING CONTROL MOTOR O-RING	13090E	-	-	-
14	CYLINDER HEAD COVER SUB-ASSEMBLY	11201	See step 14	-	-
15	SPARK PLUG TUBE GASKET	11193	See step 15	-	-

•

Non-reusable part

Precoated part

Fig 2: Camshaft Removal Components [11/2021 - 03/2022] (2 Of 2)

Callout - Procedure		Part Name Code
16	FUEL PUMP LIFTER GUIDE	23477	See step 16	-	-
17	SET NO. 1 CYLINDER TO TDC (COMPRESSION)	-	See step 17	-	-
18	STRAIGHT SCREW PLUG	-	See step 18	-	-
19	CAMSHAFT	-	See step 19	-	-

*1	NO. 1 CAMSHAFT BEARING CAP	*2	NO. 2 CAMSHAFT BEARING CAP
*3	NO. 3 CAMSHAFT BEARING CAP	*4	NO. 4 CAMSHAFT BEARING CAP
*5	CAMSHAFT	*6	NO. 2 CAMSHAFT
*7	CAMSHAFT TIMING GEAR ASSEMBLY	*8	CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
*	Precoated part	-	-