P0072 2018 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 2018 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 2018 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 2018 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 2018 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 2018 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.
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Frequently Asked Questions about P0072 2018 Ford F150 Code
1. What are the common symptoms of OBDII code P0072 on a 2018 Ford F150?
- Common symptoms include inaccurate ambient temperature readings on the vehicle's display, issues with the climate control system, and the activation of the Check Engine Light.
2. What does the OBDII code P0072 on a 2018 Ford F150 mean?
- The code P0072 indicates that there is a malfunction in the Ambient Air Temperature Sensor Circuit 'A', resulting in a low voltage signal being detected.
3. What are the possible causes of OBDII code P0072 on a 2018 Ford F150?
- Potential causes include a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's electrical connections.
4. How can I diagnose the Ambient Air Temperature Sensor Circuit 'A' on a 2018 Ford F150?
- You can diagnose the sensor circuit by visually inspecting the wiring and connectors for any damage, testing the sensor's resistance with a multimeter, and checking for proper voltage signals.
5. Can I drive my 2018 Ford F150 with OBDII code P0072?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent potential problems with the climate control system or engine performance.
6. How can I repair OBDII code P0072 on a 2018 Ford F150?
- Repair options include replacing the ambient air temperature sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code using an OBDII scanner.
7. Are there any DIY tips for fixing OBDII code P0072 on a 2018 Ford F150?
- DIY enthusiasts can attempt to replace the ambient air temperature sensor themselves by following the manufacturer's repair procedures and using the right tools.
8. Can weather conditions affect the ambient air temperature sensor circuit on a 2018 Ford F150?
- Extreme weather conditions such as high heat or freezing temperatures can potentially impact the sensor's performance, leading to false readings and triggering the P0072 code.
9. How much does it cost to fix OBDII code P0072 on a 2018 Ford F150?
- The cost of repairs can vary depending on the root cause of the issue, but it typically ranges from $100 to $300 for parts and labor.
10. Will resetting the Check Engine Light resolve OBDII code P0072 on a 2018 Ford F150?
- Simply resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing the P0072 code. It's essential to diagnose and repair the problem to prevent the code from reoccurring.
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