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 fuel pump 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 fuel pump	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [11/2021 - ]

WARNING:

Never perform work on fuel system components near any possible ignition sources.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Vaporized fuel could ignite, resulting in a serious accident.

Do not perform work on fuel system components without first disconnecting the cable from the negative (-) auxiliary battery terminal.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Sparks could cause vaporized fuel to ignite, resulting in a serious accident.

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 [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: Fuel Pump Removal Components (1 Of 3)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Callout - Procedure		Part Name Code
1	PRECAUTION	-	See step 1	-	-
2	DISCHARGE FUEL SYSTEM PRESSURE	-	See step 2	-	-
3	BATTERY SERVICE COVER PLATE	58491E	-	-	-
4	DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL	-	-	-	-

Fig 2: Fuel Pump Removal Components (2 Of 3)

Callout - Procedure		Part Name Code
5	REAR SEAT CUSHION ASSEMBLY	-	See step 5	-	-
6	REAR SEAT CUSHION LOCK HOOK	72693	-	-	-
7	REAR DOOR SCUFF PLATE LH	67918A	-	-	-
8	NO. 3 BATTERY SERVICE COVER BOARD	58467J	-	-	-
9	REAR DOOR SCUFF PLATE RH	67917A	-	-	-
10	NO. 2 BATTERY SERVICE COVER BOARD	58466K	-	-	-
11	BATTERY SERVICE COVER BOARD	58464D	-	-	-
12	CONSOLE REAR END PANEL SUB-ASSEMBLY	58903A	See step 12	-	-

•

Non-reusable part

Fig 3: Fuel Pump Removal Components (3 Of 3)

Callout - Procedure		Part Name Code
13	REAR FLOOR SERVICE HOLE COVER	58325E	See step 13	-	-
14	FUEL TANK PRESSURE SENSOR (VAPOR PRESSURE SENSOR)	89461	See step 14	-	-
15	FUEL TANK VENT HOSE SUB-ASSEMBLY	77404	See step 15	-	-
16	FUEL TANK MAIN TUBE SUB-ASSEMBLY	77209F	See step 16	-	-
17	FUEL GAGE WIRE	82412	-	-	-
18	NO. 1 FUEL TUBE CLAMP	77285G	-	-	-
19	FUEL PUMP GAUGE RETAINER	77144	See step 19	-	-
20	FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY	77020A	See step 20	-	-
21	FUEL SUCTION TUBE SET GASKET	77169A	-	-	-

*A	for Type A	*B	for Type B
*1	TUBE JOINT CLIP	-	-
•	Non-reusable part	-	-