Toyota CH-R Service Manual: Room Temperature Sensor

Toyota CH-R Service Manual / Heating / Air Conditioning / Room Temperature Sensor

Components

COMPONENTS

ILLUSTRATION

*1

COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)

*2

INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY

*3

INSTRUMENT PANEL LOWER CENTER FINISH PANEL

-

-

Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)

(a) Check the resistance.

(1) Measure the resistance according to thevalue(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 cooler thermistor (room temperature sensor) only by its connector. Touching the sensing portion may change the resistancevalue.
  • When measuring, the cooler thermistor (room temperature sensor) temperature 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 thermistor (room temperature sensor).

*a

Component without harness connected

(Cooler Thermistor (Room Temperature Sensor))

*b

Sensing Portion

*c

Resistance (kΩ)

*d

Temperature (°C (°F))

*e

Allowable Range

Removal

REMOVAL

PROCEDURE

1. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY

Click here

2. REMOVE INSTRUMENT PANEL LOWER CENTER FINISH PANEL

Click here

3. REMOVE COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)

(a) Disconnect the connector.

(b) Disconnect the air conditioning duct sub-assembly to remove the cooler thermistor (room temperature sensor).

Installation

INSTALLATION

PROCEDURE

1. INSTALL COOLER THERMISTOR (ROOM TEMPERATURE SENSOR)

(a) Connect the air conditioning duct sub-assembly to install the cooler thermistor (room temperature sensor).

(b) Connect the connector.

2. INSTALL INSTRUMENT PANEL LOWER CENTER FINISH PANEL

Click here

3. INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY

Click here

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