Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Ambient Temperature Sensor

Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Interior / Heating / Air Conditioning / Ambient Temperature Sensor

Removal

REMOVAL

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure

Part Name Code

1

FRONT BUMPER ASSEMBLY

-

-

-

-

2

THERMISTOR ASSEMBLY

88790B

-

-

-

PROCEDURE

1. REMOVE FRONT BUMPER ASSEMBLY

  • except Sport Package:

    Click here

  • for Sport Package:

    Click here

2. REMOVE THERMISTOR ASSEMBLY

Inspection

INSPECTION

PROCEDURE

1. INSPECT THERMISTOR ASSEMBLY

(a) Check the resistance.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A3-1 - A3-2

10°C (50°F)

3.00 to 3.73 kΩ

A3-1 - A3-2

15°C (59°F)

2.45 to 2.88 kΩ

A3-1 - A3-2

20°C (68°F)

1.95 to 2.30 kΩ

A3-1 - A3-2

25°C (77°F)

1.60 to 1.80 kΩ

A3-1 - A3-2

30°C (86°F)

1.28 to 1.47 kΩ

A3-1 - A3-2

35°C (95°F)

1.00 to 1.22 kΩ

A3-1 - A3-2

40°C (104°F)

0.80 to 1.00 kΩ

A3-1 - A3-2

45°C (113°F)

0.65 to 0.85 kΩ

A3-1 - A3-2

50°C (122°F)

0.50 to 0.70 kΩ

A3-1 - A3-2

55°C (131°F)

0.44 to 0.60 kΩ

A3-1 - A3-2

60°C (140°F)

0.36 to 0.50 kΩ

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 result is not as specified, replace the thermistor assembly.

*a

Component without harness connected

(Thermistor Assembly)

*b

Sensing Portion

*c

Resistance (kΩ)

*d

Temperature (°C (°F))

*e

Allowable Range

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure

Part Name Code

1

THERMISTOR ASSEMBLY

88790B

-

-

-

2

FRONT BUMPER ASSEMBLY

-

-

-

-

PROCEDURE

1. INSTALL THERMISTOR ASSEMBLY

2. INSTALL FRONT BUMPER ASSEMBLY

  • except Sport Package:

    Click here

  • for Sport Package:

    Click here

    READ NEXT:

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