Last Modified: 06-05-2026 6.11:8.1.0 Doc ID: RM100000001CVP3
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 -           ]
Title: HEATING / AIR CONDITIONING: ROOM TEMPERATURE SENSOR: INSPECTION; 2019 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [06/2018 -        ]

INSPECTION

PROCEDURE

1. INSPECT COOLER (ROOM TEMP. 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 (14 °F)

4.93 to 19.08 kΩ

0 °C (32 °F)

3.09 to 10.60 kΩ

10 °C (50 °F)

1.99 to 6.12 kΩ

20 °C (68 °F)

1.29 to 3.66 kΩ

30 °C (86 °F)

0.84 to 2.25 kΩ

40 °C (104 °F)

0.56 to 1.46 kΩ

50 °C (122 °F)

0.38 to 0.99 kΩ

60 °C (140 °F)

0.26 to 0.68 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 cooler (room temp. sensor) thermistor.

*a

Component without harness connected

(Cooler (Room Temp. Sensor) Thermistor)

*b

Sensing Portion

*c

Resistance (kΩ)

*d

Temperature (°C (°F))

*e

Allowable Range