Caution / Notice / Hint

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. 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 intake manifold 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
Auxiliary battery terminal is disconnected/reconnected	Operate the multiplex network master switch assembly (retractable outer mirror switch) to extend and retract the outer rear view mirror assembly	Parking Support Brake System*	Refer to INITIALIZATION [09/2023 - ]
Replacement of throttle body with motor assembly Cleaning the deposits from the throttle body with motor assembly Replacement of port fuel injector assembly	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [12/2023 - ]

*: When "[Parking Support Brake System icon] System Stopped See Owner's Manual is displayed on the multi-information display.

NOTE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Refer to BEFORE DISCONNECTING BATTERY [09/2023 - ]
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 [09/2023 - ]

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 (w/ Automatic Headlight Beam Level Control System)	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	Refer to INITIALIZATION [09/2023 - ]
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
Power Back Door System	Reset back door close position	Refer to INITIALIZATION [09/2023 - ]
Air Conditioning System	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

COMPONENTS (REMOVAL)

Fig 1: Intake Manifold Removal Components (1 Of 3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Procedure		Part Name Code
1	PRECAUTION	-	See step 1	-	-
2	DISCHARGE FUEL SYSTEM PRESSURE	-	See step 2	-	-
3	THROTTLE BODY WITH MOTOR ASSEMBLY	22030	-	-	-
4	V-BANK COVER SUB-ASSEMBLY	11209	See step 4	-	-
5	NO. 1 ENGINE COVER	12611	-	-	-

Fig 2: Intake Manifold Removal Components (2 Of 3)

Procedure		Part Name Code
6	VENTILATION HOSE	12261	-	-	-
7	WATER BY-PASS HOSE SUB-ASSEMBLY	-	-	-	-
8	ENGINE WIRE	82121	-	-	-
9	NO. 2 SURGE TANK STAY	17126	-	-	-
10	INTAKE AIR SURGE TANK ASSEMBLY	17190	See step 10	-	-
11	AIR SURGE TANK TO INTAKE MANIFOLD GASKET	17176	-	-	-
12	NO. 1 V-BANK COVER BRACKET	11254	-	-	-
13	MANIFOLD ABSOLUTE PRESSURE SENSOR (E.F.I. VACUUM SENSOR ASSEMBLY)	89421	-	-	-

*1	STUD BOLT	-	-
•	Non-reusable part	-	-

Fig 3: Intake Manifold Removal Components (3 Of 3)

Procedure		Part Name Code
14	NO. 2 ENGINE MOUNTING STAY RH	12327A	-	-	-
15	REAR ENGINE MOUNTING STAY RH	12327	-	-	-
16	NO. 2 EGR PIPE	25612	See step 16	-	-
17	NO. 2 EGR PIPE GASKET	25629A	-	-	-
18	NO. 1 FUEL HOSE	23801F	See step 18	-	-
19	FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY	23800	See step 19	-	-
20	NO. 1 DELIVERY PIPE SPACER	23807V	-	-	-
21	INJECTOR VIBRATION INSULATOR	23291A	-	-	-
22	INTAKE MANIFOLD	17111	See step 22	-	-
23	NO. 1 INTAKE MANIFOLD TO HEAD GASKET	17177	-	-	-

*1	STUD BOLT	*2	WIRE HARNESS CLAMP BRACKET
*3	ENGINE WIRE	-	-
•	Non-reusable part	-	-