P0073 Ambient Air Temperature Sensor Circuit High Input Nissan Sentra: What It Means and How to Fix It
P0073 on a Nissan Sentra means the ECM has detected that the ambient air temperature (AAT) sensor’s circuit voltage is above the expected operating range: which almost always means the sensor itself has failed open (producing no signal or a false high-voltage signal), the wiring to the sensor has been damaged, or in rare cases […]