Toyota Prius 2010 Repair Manual page 348

INSPECTION
1. INSPECT ROOM TEMPERATURE SENSOR
2010 Toyota Prius
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
1 - 2
Text in Illustration
Component without harness connected
*1
(Room Temperature Sensor)
*2 Sensing Portion
Hold the sensor only by its connector. Touching the sensor 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 resistance is not as specified, replace the room temperature sensor.
Condition
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
Specified Condition
Repair Manual