Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Inspection
INSPECTION
PROCEDURE
1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(a) Check the valve opening.
HINT:
The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.
| (1) Add 15 cc (0.9 cu. in.) of water to the water inlet with thermostat sub-assembly from the inlet pipe side. |
|
(2) Confirm that water does not flow out from the valve side of the water inlet with thermostat sub-assembly.
If water flows out from the valve side of the water inlet with thermostat sub-assembly, replace the water inlet with thermostat sub-assembly with a new one.
(3) Immerse the water inlet with thermostat sub-assembly in water that is between 92°C (198°F) and 96°C (205°F) for 5 minutes or more.
NOTICE:
- Do not allow any water to come into contact with the connector of the water inlet with thermostat sub-assembly.
- Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward.
- Make sure to immerse the water inlet with thermostat sub-assembly in the water as shown in the illustration.
| *a | Connector |
| *b | Inlet Pipe |
 | Temperature Sensor |
| (4) Leave the water inlet with thermostat sub-assembly at ambient temperature for 5 minutes so that the valve closes. NOTICE: Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward. |
|
(5) Check that the water that was added to the water inlet with thermostat sub-assembly has completely flowed out.
If the water that was added to the water inlet with thermostat sub-assembly has not completely flowed out, replace the thermostat sub-assembly with a new one.
(b) Check the resistance of the temperature sensor.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 1 - 2 | Always | 10.6 to 14.2 Ω |
If the result is not as specified, replace the water inlet with thermostat sub-assembly.
Components
COMPONENTS ILLUSTRATION *1 OUTER COWL TOP PANEL SUB-ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *A for TMC Made *B for TMMC Made *1 NO ...
Installation
INSTALLATION PROCEDURE 1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY (a) Install a new gasket to the water inlet with thermostat sub-assembly. (b) Install the water inlet with thermostat sub-ass ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Do-it-yourself
maintenance: Windshield wiper inserts
Replacing a windshield wiper insert
1. Change the rest position of the windshield wipers to the service position
using
the wiper lever and then lift a windshield wiper.
2. While pressing and holding the
wiper blade lock release button,
remove the wiper blade.
When performing this operation ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Meter / Gauge System: Lost Communication with EMV (B1321)
DESCRIPTION After the combination meter assembly has started, the combination meter assembly attempts to detect the radio receiver assembly by performing communication via local bus. This DTC is stored when the radio receiver assembly has been detected but communication between the combination meter ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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