Toyota CH-R Service Manual: Inspection

Toyota CH-R Service Manual / Heating / Air Conditioning / Front Evaporator Temperature Sensor(for Valeo Made) / Inspection

INSPECTION

PROCEDURE

1. INSPECT NO. 1 COOLER THERMISTOR

(a) Check the resistance.

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

*a

Component without harness connected

(No. 1 Cooler Thermistor)

*b

Sensing Portion

*c

Resistance (kΩ)

*d

Temperature (°C (°F))

*e

Allowable Range

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

-10°C (14°F)

16.86 to 16.36 kΩ

-5°C (23°F)

12.86 to 12.54 kΩ

0°C (32°F)

9.89 to 9.70 kΩ

5°C (41°F)

7.70 to 7.52 kΩ

10°C (50°F)

6.04 to 5.89 kΩ

15°C (59°F)

4.77 to 4.65 kΩ

20°C (68°F)

3.81 to 3.69 kΩ

25°C (77°F)

3.05 to 2.95 kΩ

30°C (86°F)

2.46 to 2.37 kΩ

If the resistance is not as specified, replace the No. 1 cooler thermistor.

NOTICE:

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

HINT:

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

If the specified condition is not met, replace the No. 1 cooler thermistor.

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