What is the P0073 fault code What is the description Ambient Temperature Sensor Circuit High Misfunction? How do you fix the P0073 fault code What are the causes and symptoms of the P0073 error code?
What is the P0073 Fault code? What does it stand for?
The AAT sensor measures the temperature outside. The powertrain control module (PCM), which receives this information, uses it to regulate the operation and monitor the ambient temperature. The input is also received by the powertrain control module (PCM) along with information from the intake temperature (IAT), and engine coolant temperature(ECT) sensors. Comparing AAT sensor voltage and IAT/ECT sensor voltages. If the ambient temperature exceeds the intake air temperature, then the fault code P0073 is activated.
There are many models that are susceptible to the P0073 fault code, including those from Audi, BMW (BMW), Chrysler, Dodge(Ford), Subaru, Jeep, Mazda and Mitsubishi.
What causes the P0073 Fault code?
Here are some reasons why P0073 should be set.
- – Defective ambient air temperature (AAT) sensor
- – Broken or damaged wires, loose connections, open, or short circuit problems with the AAT circuit sensor circuit
- – Corrosion within the electrical circuit or connector
- Extremely dirty AAT sensor
What are the symptoms of the P0073 Fault Code?
You may experience the following symptoms if your vehicle has the code P0073:
- – Illumination for the check engine light
- – Inadequate climate control functions
- – Incorrect temperature outside of the thermometer located on the instrument panel
How to Fix the P0073 Fault Code
- – Repair and replacement damaged wires to AAT sensor that are causing short circuit
- – Protecting the electrical circuits and connectors against corrosion
- – Cleaning the AAT sensor
- – Replacing the defective AAT sensor
How Serious Is the P0073 Fault Coding?
The P0073 fault code is not of great importance and will not have any adverse effects on the vehicle’s driving conditions. This code will affect the climate control system, which can cause uncomfortable driving for you and your passengers.
