Installation [11/2021 - 03/2024]: Procedure

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.

INSTALL HV WATER PUMP BRACKET SUB-ASSEMBLY

HINT:
Perform this procedure only when replacement of the HV water pump bracket sub-assembly is necessary.

Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)

INSTALL INVERTER WATER PUMP ASSEMBLY

for Type A

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	No. 2 Inverter Cooling Hose	*2	No. 3 Inverter Cooling Hose
*a	Alignment Mark	*b	Rib
*c	2 to 7 mm (0.0787 to 0.276 in.)	-	-

Connect the No. 2 inverter cooling hose and No. 3 inverter cooling hose to the inverter water pump assembly and slide the 2 clips to secure them.
NOTE:
- Make sure to align the alignment marks of the hoses with the ribs of the inverter water pump assembly.
- To prevent foreign matter from entering the inverter water pump assembly and inverter cooling system, do not remove the pieces of cloth from the pipes and disconnected hoses until installation.
- Do not apply excessive force to the hoses.

for Type A

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Temporarily install the inverter water pump assembly to the HV water pump bracket sub-assembly with the 2 bolts.
NOTE:
If the inverter water pump assembly has been struck or dropped, replace it.
Fully tighten the 2 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
Connect the inverter water pump assembly connector.
NOTE:
If a dustproof cap is installed to the inverter water pump assembly connector, do not remove it until the connector is to be connected.

for Type B

*1	No. 2 Inverter Cooling Hose	*2	No. 3 Inverter Cooling Hose
*a	Alignment Mark	*b	Rib
*c	2 to 7 mm (0.0787 to 0.276 in.)	-	-

Connect the No. 2 inverter cooling hose and No. 3 inverter cooling hose to the inverter water pump assembly and slide the 2 clips to secure them.
NOTE:
- Make sure to align the alignment marks of the hoses with the ribs of the inverter water pump assembly.
- To prevent foreign matter from entering the inverter water pump assembly and inverter cooling system, do not remove the pieces of cloth from the pipes and disconnected hoses until installation.
- Do not apply excessive force to the hoses.

for Type B

Temporarily install the inverter water pump assembly to the HV water pump bracket sub-assembly with the 2 bolts.
NOTE:
If the inverter water pump assembly has been struck or dropped, replace it.
Fully tighten the 2 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
Connect the inverter water pump assembly connector.
NOTE:
If a dustproof cap is installed to the inverter water pump assembly connector, do not remove it until the connector is to be connected.

INSTALL WASHER INLET SUB-ASSEMBLY (for Type A)
INSTALL HEADLAMP UNIT ASSEMBLY RH (for Type A)
- for LED Type Turn Signal Light:
  Refer to INSTALLATION [11/2021 - ]
- for Bulb Type Turn Signal Light:
  Refer to INSTALLATION [11/2021 - ]
ADD COOLANT (for Inverter)
Refer to PROCEDURE - Step 2
INSPECT FOR COOLANT LEAK (for Inverter)
See step 1