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 fuel sender gauge assembly removal/installation are shown below.

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 (-) battery terminal.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

NOTE:

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

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 15 km/h (10 mph) or more for 1 second or more.	Refer to INITIALIZATION [11/2021 - ]
Front Camera System
Adaptive High Beam System
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] , or refer to PRECAUTION [03/2023 - 03/2024] , or refer to PRECAUTION [03/2024 - ]

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 Sender Gauge Assembly Removal Components (1 Of 2)

Callout - Procedure		Part Name Code
1	FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY	77020A	-	-	-
2	FUEL SENDER GAUGE ASSEMBLY	83320	See step 2	-	-

Fig 2: Fuel Sender Gauge Assembly Removal Components (2 Of 2)

Callout - Procedure		Part Name Code
3	REAR FLOOR SERVICE HOLE COVER (for RH Side)	58325E	See step 3	-	-
4	NO. 1 FUEL TUBE CLAMP	77285G	-	-	-
5	FUEL PUMP GAUGE RETAINER	77144	See step 5	-	-
6	FUEL TANK VENT TUBE ASSEMBLY	77010	See step 6	-	-
7	FUEL SUCTION TUBE SET GASKET	77169A	-	-	-
8	NO. 2 FUEL SENDER GAUGE ASSEMBLY	83320	See step 8	-	-

*1	FUEL RETURN VENT TUBE SUB-ASSEMBLY	*2	BUTYL TAPE
•	Non-reusable part	-	-