What to do if the p0073 code returns?
What to do if the p0073 code returns?
If the P0073 code does return, we will need to test the AAT sensor and its associated circuits. Typically, there are 2 wires at the AAT sensor. With the ignition switch off, disconnect the harness going to the AAT sensor. Turn the ignition switch on.
What causes a p0073 problem on an AAT sensor?
Potential causes of a P0073 trouble code may include: Short to voltage in the signal circuit to the AAT sensor A good starting point is always to check for technical service bulletins (TSB) for your particular vehicle. Your issue may be a known issue with a known fix put out by the manufacturer and can save you time and money during diagnosis.
What is the diagnostic code for an OBDII engine?
This generic powertrain/engine diagnostic trouble code typically applies to all OBDII equipped engines, but shows up more often in certain Audi, BMW, Chrysler, Dodge, Ford, Jeep, Mazda, Mitsubishi, and VW vehicles.
When does the CCM set a diagnostic trouble code?
If there is a problem with one of the signals, the CCM sets a diagnostic trouble code (DTC) in memory. Depending on system design, a CCM DTC may need to be read directly from the CCM or it may command a DTC to be stored in the ECM.
What does DTC code p0073 stand for?
Diagnostic trouble code (DTC) P0073 stands for “Ambient Air Temperature Sensor Circuit High.” It indicates that there might be a problem with your vehicle’s ambient air temperature (AAT) sensor or the sensor’s circuit. Automatic climate control systems have made it easier for users to select the right temperature for their vehicle’s cabin.
What causes the p0073 trouble code to be stored in the PCM?
There are several things that could cause the P0073 trouble code to be stored by the Power Control Module (PCM): The ambient air temperature sensor has malfunctioned The wiring has shorted or broken There is corrosion in the electric circuitry or connector A break or short in the ambient air temperature harness Debris that is covering the sensor
When to set the ambient air temperature code p0073?
Code P0073 may be set if the PCM perceives a problem with your vehicle’s ambient air temperature (AAT) sensor or the sensor’s circuit. To function properly, the CCM relies on various sensors that keep track of various factors that affect cabin climate.
Potential causes of a P0073 trouble code may include: Short to voltage in the signal circuit to the AAT sensor A good starting point is always to check for technical service bulletins (TSB) for your particular vehicle. Your issue may be a known issue with a known fix put out by the manufacturer and can save you time and money during diagnosis.
