Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Room Temperature Sensor(for Rear)

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Vehicle Interior / Heating / Air Conditioning / Room Temperature Sensor(for Rear)

Components

COMPONENTS

ILLUSTRATION

*1

COOLER (NO. 2 ROOM TEMP. SENSOR) THERMISTOR

-

-

Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER (NO. 2 ROOM TEMP. SENSOR) THERMISTOR

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

10°C (50°F)

3.00 to 3.73 kΩ

15°C (59°F)

2.45 to 2.88 kΩ

20°C (68°F)

1.95 to 2.30 kΩ

25°C (77°F)

1.60 to 1.80 kΩ

30°C (86°F)

1.28 to 1.47 kΩ

35°C (95°F)

1.00 to 1.22 kΩ

40°C (104°F)

0.80 to 1.00 kΩ

45°C (113°F)

0.65 to 0.85 kΩ

50°C (122°F)

0.50 to 0.70 kΩ

55°C (131°F)

0.44 to 0.60 kΩ

60°C (140°F)

0.36 to 0.50 kΩ

NOTICE:

  • Hold the sensor only by its connector. Touching the sensing portion may change the resistance value.
  • When measuring, the sensor temp. must be the same as the ambient temperature.

HINT:

As the temperature increases, the resistance decreases (see the graph).

  • If the result is not as specified, replace the cooler (No. 2 room temp. sensor) thermistor.

*a

Component without harness connected

(Cooler (No. 2 Room Temp. Sensor) Thermistor))

*b

Resistance (kΩ)

*c

temperature (°C (°F))

*d

Allowable Range

Installation

INSTALLATION

PROCEDURE

1. INSTALL COOLER (NO. 2 ROOM TEMP. SENSOR) THERMISTOR

(a) Connect the connector.

(b) Engage the 4 claws to install the cooler (No. 2 room temp. sensor) thermistor.

Removal

REMOVAL

PROCEDURE

1. REMOVE COOLER (NO. 2 ROOM TEMP. SENSOR) THERMISTOR

(a) Apply protective tape to the area shown in the illustration.

Protective Tape

(b) Using a screwdriver, disengage the 4 claws.

HINT:

Tape the screwdriver tip before use.

*a

Protective Tape

(c) Disconnect the connector to remove the cooler (No. 2 room temp. sensor) thermistor.

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