P0071 2016 Ford F150 Code - Ambient Air Temperature Sensor Circuit 'A' Range/Performance
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
- P0071 2016 Ford F150 indicates Ambient Air Temperature Sensor Circuit 'A' Range/Performance.
- 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 P0071 2016 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 reading does not correlate with the other temperature sensor readings at ignition ON. The PCM runs this logic after an engine off and a calibrated soak period, typically 6 to 8 hours. This soak period allows the AAT sensor and the other temperature sensors to stabilize and not differ by greater than a calibrated value, typically 18°C (32.4°F).
What are the Possible Causes of the DTC P0071 2016 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 P0071 2016 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 P0071 2016 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 P0071 2016 Ford F150 Code
1. What are the common symptoms of OBDII code P0071 in a 2016 Ford F150?
The common symptoms of code P0071 include inaccurate or erratic readings on the ambient air temperature display, issues with the vehicle's climate control system, and potential impact on fuel efficiency.
2. What does the Ambient Air Temperature Sensor Circuit 'A' Range/Performance error mean in a 2016 Ford F150?
The P0071 code indicates that the ambient air temperature sensor circuit 'A' is experiencing a range/performance issue, meaning that the sensor is not providing the expected data to the vehicle's engine control module.
3. What are the possible causes of the P0071 code in a 2016 Ford F150?
Common causes of the P0071 code in a 2016 Ford F150 include a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's calibration.
4. How can I diagnose the cause of the P0071 code in my 2016 Ford F150?
Diagnosing the P0071 code typically involves inspecting the ambient air temperature sensor and its wiring for any damage, checking the sensor's resistance with a multimeter, and verifying the sensor's data against the actual ambient air temperature.
5. Can I continue driving my 2016 Ford F150 with the P0071 code present?
While the vehicle may still be operable with the P0071 code, it is recommended to address the issue promptly to prevent potential impacts on fuel efficiency and the climate control system's performance.
6. How can I repair the Ambient Air Temperature Sensor Circuit 'A' Range/Performance issue in my 2016 Ford F150?
Repairing the P0071 code may involve replacing the ambient air temperature sensor, repairing any damaged wiring or connectors in the sensor circuit, and clearing the trouble code with an OBDII scanner.
7. Will resetting the OBDII code P0071 in my 2016 Ford F150 fix the issue?
Simply resetting the code may temporarily clear the error, but if the underlying issue causing the P0071 code is not addressed, it is likely to reappear. It's essential to diagnose and repair the root cause of the problem.
8. How much does it cost to fix the P0071 code in a 2016 Ford F150?
The cost of fixing the P0071 code can vary depending on the cause of the issue and whether you perform the repairs yourself or take your vehicle to a mechanic. Costs may include parts, labor, and diagnostic fees.
9. Can extreme weather conditions affect the ambient air temperature sensor and trigger the P0071 code?
Yes, extreme hot or cold weather conditions can impact the ambient air temperature sensor's performance and potentially trigger the P0071 code. It's essential to keep the sensor and its wiring protected from harsh environmental conditions.
10. Is the P0071 code a serious issue that requires immediate attention in a 2016 Ford F150?
While the P0071 code may not cause immediate drivability issues, it is still important to address the problem to ensure the accurate operation of the vehicle's systems and prevent any potential long-term issues.
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