LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Control System - Service Information) >> AIR FUEL RATIO SENSOR (for Sensor 1) >> Removal [08/2023 - ] >> Caution / Notice / Hint

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 air fuel ratio sensor 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 [10/2022 - ]
for PHEV Model: 
  1. Service plug grip
 High voltage fuse accumulated load history reset DTCs are stored Refer to UTILITY [08/2023 - ]
  • Replacement of air fuel ratio sensor (sensor 1)
  • Gas leak from exhaust system is repaired
 Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.
 Refer to INITIALIZATION [10/2022 - ]

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

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

GTY563663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 [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 15 km/h (10 mph) or more for 1 second 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: 
  1. After the ignition switch is turned to ON, the servo motor standard position is recognized.

for PHEV Model: 
  1. After the ignition switch is turned to ON, the servo motor and cooler expansion valve standard position is recognized.
 -


COMPONENTS (REMOVAL) 

Fig 1: Air Fuel Ratio Sensor (For Sensor 1) Removal Components [08/2023 - ]
GTY1205712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Procedure Part Name Code
1 NO. 1 ENGINE COVER SUB-ASSEMBLY 12601B See step  1 - -
2 NO. 2 HEATER AND ACCESSORY SUB-ASSEMBLY - - - -
3 AIR FUEL RATIO SENSOR 89467B See step  3 - -
*A for HEV Model *B for PHEV Model
scientia non olet · About LEMON Manuals