Caution / Notice / Hint

WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. 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 No. 2 traction battery device box 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 - ]

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

WARNING:

Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the appropriate service information .

Refer to PRECAUTION [09/2023 - ]

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Tapping cannot be performed on the bolt holes shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Areas where tapping is prohibited

If tapping is performed, electrical leakage, the spraying of electrolyte, and short circuits may result, leading to electrical shock or fire.
When tapping is required, replace the HV battery with a new one.

NOTE:

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: Junction Block (For 1Motor-HEV Model) Removal Components (1 Of 6)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Procedure		Part Name Code
1	PRECAUTION	-	See step 1	-	-
2	READ VALUE USING GTS	-	See step 2	-	-
3	SERVICE PLUG GRIP	G3834	-	-	-

Fig 2: Junction Block (For 1Motor-HEV Model) Removal Components With Torque Specifications (2 Of 6)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Procedure		Part Name Code
4	REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY	12601B	See step 4	-	-
5	REMOVE AIR CLEANER ASSEMBLY WITH NO. 1 AIR CLEANER HOSE	-	-	-	-
6	REMOVE AIR CLEANER HOSE ASSEMBLY	17880	-	-	-
7	REMOVE BATTERY COVER LOCK STRIKER	G9295B	See step 7	-	-
8	REMOVE INVERTER TERMINAL COVER	G9223	See step 8	-	-
9	CHECK TERMINAL VOLTAGE	-	See step 9	-	-
10	REMOVE INVERTER COVER GASKET	G9231	See step 10	-	-
11	INSTALL INVERTER COVER GASKET	G9231	See step 11	-	-
12	INSTALL INVERTER TERMINAL COVER	G9223	See step 12	-	-
13	INSTALL BATTERY COVER LOCK STRIKER	G9295B	See step 13	-	-
14	INSTALL AIR CLEANER HOSE ASSEMBLY	17880	See step 14	-	-
15	INSTALL AIR CLEANER ASSEMBLY WITH NO. 1 AIR CLEANER HOSE	-	See step 15	-	-
16	INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY	12601B	See step 16	-	-

N.m (kgf/cm, ft.lbf): Specified torque

Fig 3: Junction Block (For 1Motor-HEV Model) Removal Components (3 Of 6)

Procedure		Part Name Code
17	REAR SEAT ASSEMBLY	-	-	-	-
18	REAR NO. 2 SEAT ASSEMBLY	-	-	-	-
19	REAR CONSOLE BOX ASSEMBLY	58910C	-	-	-

for Captain Seat Type

Fig 4: Junction Block (For 1Motor-HEV Model) Removal Components (4 Of 6)

Procedure		Part Name Code
20	FRONT FLOOR CARPET ASSEMBLY	-	-	-	-
21	NO. 1 REAR FLOOR SILENCER	-	-	-	-

Fig 5: Junction Block (For 1Motor-HEV Model) Removal Components (5 Of 6)

Procedure		Part Name Code
22	NO. 3 CONSOLE BOX MOUNTING BRACKET	58997	See step 20	-	-
23	NO. 4 CONSOLE BOX MOUNTING BRACKET	58994A	See step 21	-	-

for Captain Seat Type

Fig 6: Junction Block (For 1Motor-HEV Model) Removal Components (6 Of 6)

Procedure		Part Name Code
24	NO. 6 HV BATTERY SHIELD SUB-ASSEMBLY	G920V	See step 24	-	-
25	NO. 2 HV FLOOR UNDER WIRE	821H6	See step 25	-	-
26	HV BATTERY CHARGER WIRE	821H5A	See step 26	-	-
27	FLOOR WIRE	82161	See step 27	-	-
28	ELECTRIC VEHICLE BATTERY PLUG ASSEMBLY	G3830A	See step 28	-	-
29	NO. 3 HV BATTERY SHIELD SUB-ASSEMBLY	G920SA	See step 29	-	-
30	NO. 2 TRACTION BATTERY DEVICE BOX	G384C	See step 30	-	-

*A	for 60/40 Split Seat Type	-	-
*1	NO. 2 BATTERY COVER LOCK STRIKER	-	-