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Overheating Sensor

Fig 1: Identifying Overheating Sensor
GLL154668Courtesy of VOLVO CARS CORPORATION

The overheating sensor helps the control module determine coolant temperature and thereby determine heater temperature and protect the heater from overheating.

The overheating sensor is integrated in the heater, located next to the coolant temperature sensor under a cover on one side of the heater.

There are diagnostics for the electronics of the overheating sensor.

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