P0072 2019 Ford F150 Code - Ambient Air Temperature Sensor Circuit 'A' Low
Quick Answer
The Ambient Air Temperature (AAT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Ambient Air Temperature (AAT) Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0072 2019 Ford F150 indicates Ambient Air Temperature Sensor Circuit 'A' Low.
- Common causes
- Common causes include Faulty Ambient Air Temperature (AAT) Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0072 2019 Ford F150 Description
Thermistor type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The AAT sensor provides ambient air temperature information to the PCM for the temperature sensor correlation tests. The PCM also communicates the AAT sensor information to all other modules on the controller area network (CAN).
This Diagnostic Trouble Code (DTC) sets when the ambient air temperature (AAT) sensor signal is less than the self-test minimum.
What are the Possible Causes of the DTC P0072 2019 Ford F150?
- Faulty Ambient Air Temperature (AAT) Sensor
- Ambient Air Temperature Sensor harness is open or shorted
- Ambient Air Temperature Sensor circuit poor electrical connection
How to Fix the DTC P0072 2019 Ford F150?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0072 2019 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0072 2019 Ford F150 code?
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Need Help with the Code?
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Frequently Asked Questions about P0072 2019 Ford F150 Code
1. What are the common symptoms of OBDII code P0072 on a 2019 Ford F150?
- Common symptoms include inaccurate ambient air temperature readings on the vehicle's display, issues with the climate control system, and potential triggering of the check engine light.
2. What is the most likely cause of OBDII code P0072 on a 2019 Ford F150?
- The most likely cause of this code is a malfunctioning ambient air temperature sensor or a problem within the sensor circuit, leading to a low voltage signal.
3. How can I diagnose the Ambient Air Temperature Sensor Circuit 'A' Low issue on my 2019 Ford F150?
- You can start by visually inspecting the sensor and its wiring for any visible damage. Using a multimeter, test the sensor's resistance and voltage output to determine if it is functioning properly.
4. Can a faulty ambient air temperature sensor impact the performance of my 2019 Ford F150?
- Yes, a faulty ambient air temperature sensor can affect the vehicle's fuel efficiency, emissions, and overall engine performance by providing incorrect data to the engine control module.
5. Is it safe to continue driving my 2019 Ford F150 with OBDII code P0072 triggered?
- While the vehicle may still be operational, it is recommended to address the underlying issue promptly to prevent potential adverse effects on fuel economy and engine performance.
6. How can I reset the OBDII code P0072 on my 2019 Ford F150 after making repairs?
- You can reset the code using an OBDII scanner tool or by disconnecting the vehicle's battery for a few minutes. However, it is crucial to address and fix the root cause of the issue to prevent the code from reappearing.
7. Are there any DIY repair tips for fixing the Ambient Air Temperature Sensor Circuit 'A' Low problem on a 2019 Ford F150?
- DIY enthusiasts with automotive repair knowledge can attempt to replace the ambient air temperature sensor themselves, following the vehicle's service manual or online guides. Ensure proper tools and safety precautions are taken.
8. Will replacing the ambient air temperature sensor resolve the OBDII code P0072 on my 2019 Ford F150?
- In many cases, replacing the faulty ambient air temperature sensor can resolve the code P0072. However, it is essential to verify proper installation and check the sensor circuit for any underlying issues.
9. How much does it typically cost to repair the Ambient Air Temperature Sensor Circuit 'A' Low issue on a 2019 Ford F150 at a professional mechanic's shop?
- The cost of repair can vary depending on the labor rates and parts prices, but on average, the repair for this issue can range from $100 to $300, including parts and labor.
10. Can extreme weather conditions affect the ambient air temperature sensor and trigger OBDII code P0072 on a 2019 Ford F150?
- Yes, extreme temperatures or exposure to moisture can potentially damage the ambient air temperature sensor, leading to erroneous readings and triggering the code P0072. It's important to consider environmental factors when diagnosing this issue.
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