![]() These three should be within a few degrees of one another if your Venture is completely cold. The voltage value being returned by the AAT is too high in relation to the voltage value of the Intake Air Temp sensor and/or the Engine Coolant Temp sensor. If your particular vehicle is equipped with a climate control system that automatically adjusts itself, it can affect the cabin air temperature (particularly when the auto start function is engaged). It converts this signal to a voltage value the Powertrain Control Module (PCM) can read.ĭepending on your Venture’s model year and options, the AAT’s only function may be to display the outside air temperature. The AAT sensor measures the air temperature outside of the van’s cabin. Ambient Air Temperature (AAT) Sensor A typical AAT Sensor Here’s the definition of P0073 for the Chevy Venture broken down into its two main parts: 1. The Diagnostic trouble code (DTC) P0073 stands for “ Ambient Air Temperature Sensor Circuit High Input.” While P0073 is a generic code (it has the same meaning for all vehicles made after 1996), repair steps will vary depending on your Chevy Venture’s model year and equipped options.Īmbient Air Temperature Sensor Circuit – High Input It doesn’t affect the way your car runs or drives at all. The ambient air temperature sensor (or AAT for short) is responsible for monitoring outside air temperature and regulating your vehicle’s automatic climate control system. In layman’s terms, it indicates that there is an issue with your van’s ambient air sensor. ![]() ![]() P0073 is a common OBD2 trouble code that can affect the Chevy Venture.
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