DTC B0160: Ambient Air Temperature Sensor Circuit Low: Description

WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Driver Information Center (DIC) applies 5 volts to ambient air temperature sensor. Ambient air temperature is a thermistor which varies in resistance as temperature changes. As resistance of ambient air temperature sensor increases, DIC senses a larger voltage drop across sensor, indicating a lower temperature. As resistance of ambient air temperature sensor decreases, DIC senses a smaller voltage drop across sensor, indicating a higher temperature.

DTC B0160 is set when DIC detects that temperature is more than 284°F (140°C) for more than 2 seconds. SC is displayed by DIC in compass/temperature mode when condition for setting DTC is present. DTC B0160 will clear and become a history DTC when DIC no longer detects a failure. History DTC B0160 will clear after 100 fault free ignition cycles. B0160 will also clear when DIC receives a clear code command from scan tool.