Vehicle Interior

Inspection

~1min read
INSPECTION PROCEDURE

1. INSPECT NO. 1 COOLER 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 (14°F)

7.30 to 9.10 kΩ

1 - 2

-5°C (23°F)

5.65 to 6.95 kΩ

1 - 2

0 °C

4.40 to 5.35 kΩ

1 - 2

5 °C

3.40 to 4.15 kΩ

1 - 2

10 °C

2.70 to 3.25 kΩ

1 - 2

15 °C

2.14 to 2.58 kΩ

1 - 2

20 °C

1.71 to 2.05 kΩ

1 - 2

25 °C

1.38 to 1.64 kΩ

1 - 2

30 °C

1.11 to 1.32 kΩ

HINT:

As the temperature increases, the resistance decreases (refer to the graph).

NOTICE:

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

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

Text in Illustration

*1

Sensor

*a

Component without harness connected

(No. 1 Cooler Thermistor)

*b

Resistance (kΩ)

*c

Temperature (°C(°F))

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.