P0074 2017 Ford F150 Code - Ambient Air Temperature Sensor Circuit 'A' Intermittent/Erratic
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
- P0074 2017 Ford F150 indicates Ambient Air Temperature Sensor Circuit 'A' Intermittent/Erratic.
- 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 P0074 2017 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 changes beyond the minimum or maximum calibrated limit.
What are the Possible Causes of the DTC P0074 2017 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 P0074 2017 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 P0074 2017 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 P0074 2017 Ford F150 code?
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Need Help with the Code?
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Frequently Asked Questions about P0074 2017 Ford F150 Code
1. What are the common symptoms of OBDII code P0074 in a 2017 Ford F150?
When the Ambient Air Temperature Sensor Circuit 'A' is intermittent or erratic, you may experience issues like inaccurate temperature readings on the dashboard, poor fuel efficiency, and potential activation of the check engine light.
2. What are the possible causes of the OBDII code P0074 in a 2017 Ford F150?
Common causes of code P0074 on a 2017 Ford F150 include a faulty ambient air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the sensor's electrical circuit.
3. How can I diagnose the Ambient Air Temperature Sensor Circuit 'A' issue in my 2017 Ford F150?
To diagnose the problem, you can use an OBDII scanner to read the error code, visually inspect the sensor and its wiring for any visible damage, and perform electrical tests to check for proper sensor operation.
4. Can I still drive my 2017 Ford F150 with OBDII code P0074?
While it is generally safe to drive your vehicle with this code, it is advisable to address the underlying issue promptly to prevent potential fuel efficiency problems and ensure accurate temperature readings.
5. How do I repair the Ambient Air Temperature Sensor Circuit 'A' problem in my 2017 Ford F150?
Repairing the issue may involve replacing the ambient air temperature sensor, repairing or replacing damaged wiring or connectors, or resetting the check engine light after fixing the problem.
6. Will resetting the check engine light resolve OBDII code P0074 in my 2017 Ford F150?
Simply resetting the check engine light without addressing the underlying issue will not fix the problem. It's essential to diagnose and repair the root cause to prevent the code from reoccurring.
7. Can extreme weather conditions affect the Ambient Air Temperature Sensor Circuit 'A' in a 2017 Ford F150?
Extreme temperatures can potentially impact the sensor's performance and trigger intermittent or erratic readings. Ensure the sensor is properly insulated and protected from harsh weather conditions.
8. How much does it typically cost to repair OBDII code P0074 in a 2017 Ford F150?
The cost of repairing code P0074 can vary depending on the cause of the issue, labor rates, and the need for replacement parts. It's best to consult a professional mechanic for an accurate estimate.
9. Is the Ambient Air Temperature Sensor Circuit 'A' issue covered under warranty for a 2017 Ford F150?
If your vehicle is still under warranty, the repair for OBDII code P0074 may be covered. Check your warranty details or consult your Ford dealership for assistance.
10. Can I prevent OBDII code P0074 from occurring in my 2017 Ford F150?
Regular vehicle maintenance, including checking the ambient air temperature sensor and its connections, can help prevent issues leading to code P0074. Keeping your vehicle in good condition can reduce the likelihood of this code appearing.
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