Last Modified: 06-05-2026 6.11:8.1.0 Doc ID: RM100000001CVP9
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 -           ]
Title: HEATING / AIR CONDITIONING: FRONT EVAPORATOR TEMPERATURE SENSOR: INSPECTION; 2019 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [06/2018 -        ]

INSPECTION

PROCEDURE

1. INSPECT NO. 1 COOLER THERMISTOR

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

*a

Component without harness connected

(No. 1 Cooler Thermistor)

*b

Sensing Portion

*c

Resistance (kΩ)

*d

Temperature (°C (°F))

*e

Allowable Range

-

-

Standard Resistance

Tester Connection

Condition

Specified Condition

1 - 2

-10°C (14°F)

4.79 to 14.54 kΩ

0 °C (32 °F)

2.89 to 8.31 kΩ

10 °C (50 °F)

1.78 to 4.91 kΩ

20 °C (68 °F)

1.15 to 3.03 kΩ

30 °C (86 °F)

0.76 to 1.95 kΩ

40 °C (104 °F)

0.51 to 1.28 kΩ

50 °C (122 °F)

0.35 to 0.86 kΩ

60 °C (140 °F)

0.25 to 0.59 kΩ

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

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).