Evaporator Temperature Sensor: Inspection

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT EVAPORATOR TEMPERATURE SENSOR

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

Fig 1: Inspecting Evaporator Temperature Sensor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
A8-1 - A8-2	-10°C (14°F)	7.40 to 9.20 kΩ
A8-1 - A8-2	-5°C (23°F)	5.65 to 7.00 kΩ
A8-1 - A8-2	0°C (32°F)	4.35 to 5.40 kΩ
A8-1 - A8-2	5°C (41°F)	3.40 to 4.20 kΩ
A8-1 - A8-2	10°C (50°F)	2.68 to 3.30 kΩ
A8-1 - A8-2	15°C (59°F)	2.10 to 2.60 kΩ
A8-1 - A8-2	20°C (68°F)	1.66 to 2.10 kΩ
A8-1 - A8-2	25°C (77°F)	1.32 to 1.66 kΩ
A8-1 - A8-2	30°C (86°F)	1.05 to 1.35 kΩ

Fig 2: Evaporator Temperature Sensor Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

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

HINT:

As the temperature increases, the resistance decreases (see the graph). If the resistance value is not as specified, replace the sensor.