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Toyota Tacoma (2015-2018) Service Manual / Air Conditioning / Front Evaporator Temperature Sensor

Toyota Tacoma (2015-2018) Service Manual: Front Evaporator Temperature Sensor

Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER THERMISTOR SENSOR

(a) Check the resistance.

(1) Measure the resistance and check the results in accordance with the values in the table below.

Standard:

Tester Connection

Condition

Specified Condition

1 - 2

-10°C (14°F)

7.40 to 9.20 kΩ

1 - 2

-5°C (23°F)

5.65 to 7.00 kΩ

1 - 2

0°C (32°F)

4.35 to 5.40 kΩ

1 - 2

5°C (41°F)

3.40 to 4.20 kΩ

1 - 2

10°C (50°F)

2.68 to 3.30 kΩ

1 - 2

15°C (59°F)

2.10 to 2.60 kΩ

1 - 2

20°C (68°F)

1.66 to 2.10 kΩ

1 - 2

25°C (77°F)

1.32 to 1.66 kΩ

1 - 2

30°C (86°F)

1.05 to 1.35 kΩ

If the result is not as specified, replace the cooler thermistor sensor.

NOTICE:

  • Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.
  • When measuring, the sensor temperature must be almost the same as the ambient temperature.

HINT:

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