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In-Vehicle Temperature Sensor

Remove in-vehicle temperature sensor. See Figure. Measure sensor resistance while heating sensor. See IN-VEHICLE TEMPERATURE  SENSOR RESISTANCE SPECIFICATIONS table. If resistance is not as specified, replace sensor.

IN-VEHICLE TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS

Sensor Temperature °F (°C) (1) Ohms
77 (25) 1600-1800
122 (50) 500-700
(1) As temperature increases, resistance should gradually decrease.
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