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Home >> Audi >> 2017 >> RS 3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (GENERIC SCAN TOOL [CNTA, CNTC, CNSB] (5 Of 5) -- (A3 SEDAN)) >> Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Outside Air Temperature Sensor - G17-, Checking >> General Description

Outside Air Temperature Sensor - G17-, Checking: General Description

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The ambient or Outside Air Temperature Sensor -G17- is a negative temperature coefficient (NTC) sensor that informs the semiautomatic / automatic temperature control system of outside air temperature. An NTC sensor resistance decreases as the temperature increases, and the sensor resistance increases as the temperature decreases. 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 A/C compressor clutch may not engage.

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