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Home >> Mitsubishi >> 2011 >> Eclipse GS, Standard >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Air Conditioning >> Automatic A/C Diagnosis >> Diagnostic Trouble Code Procedures >> DTC B1021: Air Thermo Sensor System (Short Circuit) >> Function
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DTC B1021: Air Thermo Sensor System (Short Circuit): Function

The air thermo sensor sends the temperature information inside the heater unit to the A/C-ECU. The A/C-ECU controls the air mixing damper control motor and potentiometer to control the temperature of the air coming out of the vents.

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