DTC B0162: Temperature Sensor Circuit Open: 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 sensor 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 small voltage drop across sensor, indicating a higher temperature.

DTC will set when DIC detects that temperature is less than -40°F (-40°C) for more than 2 seconds. OC is displayed by DIC in compass/temperature mode when DTC B0162 is set. DTC B0162 will clear become a history DTC when DIC no longer detects a failure. History DTC B0162 will clear after 100 fault free ignition cycles. B0162 will also clear when DIC receives clear code command from scan tool.