Toyota Tundra Service Manual: Ambient Temperature Sensor

Toyota Tundra Service Manual / Vehicle Interior / Air Conditioning / Ambient Temperature Sensor

Components

COMPONENTS

ILLUSTRATION

*1

COOLER (AMBIENT TEMPERATURE SENSOR) THERMISTOR

-

-

Inspection

INSPECTION

PROCEDURE

1. INSPECT COOLER (AMBIENT TEMPERATURE 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:

  • Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor.
  • When measuring the resistance, the sensor temperature must be the same as the ambient temperature.

HINT:

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

Text in Illustration

*1

Sensor Area

*a

Component without harness connected

(Cooler (Ambient Temperature Sensor) Thermistor)

*b

Resistance (kΩ)

*c

Temperature (°C (°F))

If the result is not as specified, replace the cooler (ambient temperature sensor) thermistor.

Installation

INSTALLATION

PROCEDURE

1. INSTALL COOLER (AMBIENT TEMPERATURE SENSOR) THERMISTOR

(a) Attach the clamp to install the cooler (ambient temperature sensor) thermistor.

(b) Connect the connector.

2. INSTALL RADIATOR GRILLE SUB-ASSEMBLY

Click here

Removal

REMOVAL

PROCEDURE

1. REMOVE RADIATOR GRILLE SUB-ASSEMBLY

Click here

2. REMOVE COOLER (AMBIENT TEMPERATURE SENSOR) THERMISTOR

(a) Disconnect the connector.

(b) Using a clip remover, detach the clamp and remove the cooler (ambient temperature sensor) thermistor.

    Removal

    Compressor

    See More:

    Toyota Tundra Service Manual > Engine Immobiliser System (w/o Smart Key System): Unmatched Key Code (B2795)
    DESCRIPTION This DTC is stored when a key with a different vehicle serial number is inserted into the ignition key cylinder. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2795 Unmatched Key Code A key with a different vehicle serial number is inserted into the ignition key cylind ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2025 Copyright www.ttundra.com
    0.0094