Caution / Notice / Hint

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 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 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 cam timing control motor with EDU assembly1 Replacement of camshaft timing gear assembly1 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	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [10/2022 - ]

*1: 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 [10/2022 - ]
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 [10/2022 - ]

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
Front Camera System	Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.	Refer to INITIALIZATION [10/2022 - ]
Adaptive High Beam System
Lighting System (w/ Automatic Headlight Beam Level Control System)

LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Power Back Door System	Reset back door close position	Refer to INITIALIZATION [10/2022 - ]
Air Conditioning System	except PHEV Model: After the ignition switch is turned to ON, the servo motor standard position is recognized. for PHEV Model: After the ignition switch is turned to ON, the servo motor and cooler expansion valve standard position is recognized.	-

Effect/Inoperative Function when Necessary Procedure not Performed

Necessary Procedure

Link

Power Back Door System

Reset back door close position

Refer to INITIALIZATION [10/2022 - ]

Air Conditioning System

except PHEV Model:

After the ignition switch is turned to ON, the servo motor standard position is recognized.

for PHEV Model:

After the ignition switch is turned to ON, the servo motor and cooler expansion valve standard position is recognized.

COMPONENTS (REMOVAL)

Fig 1: Camshaft Removal Components [08/2023 - ] (1 Of 3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Procedure		Part Name Code
1	FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY	23100X	-	-	-
2	RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM	-	-	See step 2	-
3	DISCHARGE HOSE SUB-ASSEMBLY	88703	-	-	-
4	NO. 1 COOLER REFRIGERANT SUCTION HOSE	88712	See step 4	-	-
5	AIR CONDITIONING HOSE AND ACCESSORY	88720B	See step 5	-	-
6	LIQUID TUBE SUB-ASSEMBLY A	88706A	See step 6	-	-
7	EARTH BOLT CAP	-	-	-	-
8	NO. 2 EARTH WIRE	82286A	-	-	-

*A	PHEV Model	-	-
•	Non-reusable part	-	-

Fig 2: Camshaft Removal Components [08/2023 - ] (2 Of 3)

Procedure		Part Name Code
9	ENGINE WIRE	82121	-	-	-
10	IGNITION COIL ASSEMBLY	19500	See step 10	-	-
11	CAMSHAFT POSITION SENSOR (for Intake Side)	11102A	See step 11	-	-
12	CAMSHAFT POSITION SENSOR (for Exhaust Side)	11102A	See step 12	-	-
13	CAM TIMING OIL CONTROL SOLENOID ASSEMBLY	15370	See step 13	-	-
14	CAM TIMING OIL CONTROL SOLENOID O-RING	15370A	See step 14	-	-
15	CAMSHAFT TIMING VALVE ASSEMBLY	135A0B	See step 15	-	-
16	CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY	13090D	See step 16	-	-
17	CAM TIMING CONTROL MOTOR O-RING	13090E	-	-	-
18	CYLINDER HEAD COVER SUB-ASSEMBLY	11201	See step 18	-	-
19	SPARK PLUG TUBE GASKET	11193	See step 19	-	-

•

Non-reusable part

Precoated part

Fig 3: Camshaft Removal Components [08/2023 - ] (3 Of 3)

Procedure		Part Name Code
20	FUEL PUMP LIFTER GUIDE	23477	See step 20	-	-
21	SET NO. 1 CYLINDER TO TDC (COMPRESSION)	-	See step 21	-	-
22	STRAIGHT SCREW PLUG	-	See step 22	-	-
23	CAMSHAFT	-	See step 23	-	-

*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	-	-