Installation [08/2023 - ]: Procedure
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.
- INSTALL ENGINE COOLANT TEMPERATURE SENSOR
- Apply a light coat of engine coolant to the O-ring of the engine coolant temperature sensor.
- Install the engine coolant temperature sensor to the water outlet with a new clip.NOTE:
- If the engine coolant temperature sensor has been struck or dropped, replace it.
- If reusing the engine coolant temperature sensor, be sure to inspect the O-ring.
- Make sure that the O-ring is not cracked or moved out of place when installing the engine coolant temperature sensor.
- Connect the engine coolant temperature sensor connector.
- INSTALL HYBRID MOTOR CONTROL INVERTER ASSEMBLY
- for THS-HEV Model:
Refer to INSTALLATION [10/2022 - ]
- for PHEV Model:
Refer to INSTALLATION [08/2023 - ]
- for THS-HEV Model:
- INSTALL NO. 2 ENGINE COOLANT TEMPERATURE SENSOR
- Apply a light coat of engine coolant to the O-ring of the No. 2 engine coolant temperature sensor.
- Install the No. 2 engine coolant temperature sensor to the radiator pipe with a new clip.NOTE:
- If the No. 2 engine coolant temperature sensor has been struck or dropped, replace it.
- If reusing the No. 2 engine coolant temperature sensor, be sure to inspect the O-ring.
- Make sure that the O-ring is not cracked or moved out of place when installing the No. 2 engine coolant temperature sensor.
- Connect the No. 2 engine coolant temperature sensor connector.
- INSTALL INLET AIR CLEANER ASSEMBLY
- INSTALL COOL AIR INTAKE DUCT SEAL
- ADD ENGINE COOLANT (for Engine)
Refer to REPLACEMENT [08/2023 - ]
- PERFORM INITIALIZATION
- Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Refer to INITIALIZATION [10/2022 - ]
- Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
- INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL
Refer to WORK PROCEDURE [10/2022 - ]
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.