Ambient Temperature Sensor Inspection


  1. INSPECT COOLER THERMISTOR (AMBIENT TEMPERATURE SENSOR)

Ambient Temperature Sensor -- Inspection



1. INSPECT COOLER THERMISTOR (AMBIENT TEMPERATURE SENSOR)


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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		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
    HINT:
    As the temperature increases, the resistance decreases (refer to the graph).
    NOTICE:
    1. Touching the sensor even slightly may change the resistance value. Be sure to hold the connector of the sensor.
    1. When measuring the resistance, the sensor temperature must be the same as the ambient temperature.
    If the result is not as specified, replace the cooler thermistor (ambient temperature sensor).
    Text in Illustration
    *a
    		Component without harness connected
    (Cooler Thermistor (Ambient Temperature Sensor))
    *b
    		Sensor Area
    *c
    		Resistance kΩ
    *d
    		Temperature °C (°F)