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Home >> Audi >> 2013 >> S7 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> 4.0L - Generic Scan Tool - Engine Code(S): CEUC & CRDB (Transmission DTC Table & Diagnostic Procedures) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Outside Air Temperature Sensor -G17-, CHECKING >> Function

Outside Air Temperature Sensor -G17-, CHECKING: Function

The ambient or Outside Air Temperature Sensor -G17- is a negative temperature coefficient (NTC) sensor that informs the semi-automatic/automatic temperature control system of outside air temperature. An NTC sensor's resistance decreases as the temperature increases. The computer uses this input along with different in-car temperature sensors to control temperature and blower speed. When there is a problem with this sensor, performance will suffer and the compressor's clutch may not engage.

Special tools and workshop equipment required 

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