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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 373 ((Heating & Air Conditioning - Electrical Diagnostics - 2500 Hd & 3500 Hd)) >> Diagnosis And Testing >> B11FC-12-Blend Air Sensor Short To Battery >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Mixing Chamber Temperature Sensor is a variable resistor that changes in conjunction with temperature, or otherwise known as a thermistor. The Mixing Chamber Temperature Sensor is located in the HVAC housing. The A/C Heater Module monitors the Mixing Chamber temperature by monitoring the voltage change of the Mixing Chamber Temperature Sensor Signal circuit. If the monitored voltage drops below or rises above a predetermined voltage, a Diagnostic Trouble Code (DTC) will set.

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