AutoCodes – Ford – P0103 2017 Ford F150

P0103 2017 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit High Input

Quick Answer

The Mass Airflow (MAF) Sensor uses a hot wire sensing element to measure the amount of air entering the engine. Common causes include Dirty Air Filter, Faulty Mass Airflow (MAF) 'A' Sensor, Mass Airflow 'A' Sensor harness is open or shorted. 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: P0103 2017 Ford F150 indicates Mass Or Volume Air Flow Sensor 'A' Circuit High Input.
Common causes: Common causes include Dirty Air Filter, Faulty Mass Airflow (MAF) 'A' Sensor, Mass Airflow 'A' Sensor harness is open or shorted.
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.

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Code Popularity 200

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 21, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0103 2017 Ford F150 Description

The Mass Airflow (MAF) Sensor uses a hot wire sensing element to measure the amount of air entering the engine. The air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. The current required to maintain the temperature of the hot wire is proportional to the mass airflow. The MAF Sensor then outputs a signal to the Powertrain Control Module (PCM) proportional to the intake air mass. The PCM calculates the required fuel injector pulse width in order to provide the desired air to fuel ratio. The MAF sensor is located near the air cleaner assembly. Most MAF sensors have an integrated Intake Air Temperature (IAT) sensor. This Diagnostic Trouble Code (DTC) will be set when the Mass Airflow Sensor output changes above a maximum calibrated limit while the engine is running.

OBDII Code P0103 2017 Ford F150 - Mass Or Volume Air Flow Sensor 'A' Circuit High Input - AutoCodes.com — P0103 2017 Ford F150 Code - Mass Or Volume Air Flow Sensor 'A' Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0103 2017 Ford F150?

Dirty Air Filter
Faulty Mass Airflow (MAF) 'A' Sensor
Mass Airflow 'A' Sensor harness is open or shorted
Mass Airflow 'A' Sensor circuit poor electrical connection

How to Fix the DTC P0103 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 does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) Sensor, try replacing the air filter and cleaning the Mass Air Flow Sensor with low-compressed air or a Mass Air Flow Sensor Cleaner. Reset the code and drive the vehicle. If the code comes back, you must replace the Mass Air Flow Sensor to fix the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0103 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.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0103 2017 Ford F150 Code

1. What does OBDII code P0103 mean on a 2017 Ford F150?

P0103 indicates that the Mass Air Flow (MAF) sensor is sending a voltage signal to the engine control module (ECM) that is higher than expected, signaling a "high input" issue.

2. What are the common symptoms of code P0103 on a 2017 Ford F150?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, difficulty starting, or the check engine light turning on.

3. What are the possible causes of a P0103 code in a 2017 Ford F150?

Potential causes include a faulty MAF sensor, damaged or corroded wiring or connectors, intake air leaks, or an improperly installed air filter.

4. Can a dirty air filter trigger code P0103 on a 2017 Ford F150?

Yes, a clogged or improperly installed air filter can disrupt airflow and potentially contribute to a P0103 code.

5. How do you fix a P0103 code on a 2017 Ford F150?

Possible fixes include cleaning or replacing the MAF sensor, repairing damaged wiring or connections, inspecting the air intake system for leaks, or replacing the air filter if necessary.

6. Is it safe to drive with a P0103 code on a 2017 Ford F150?

While it may be possible to drive, it is not recommended, as the engine may perform poorly and consume more fuel, which could lead to further damage over time.

7. How do you clean the MAF sensor to address a P0103 code on a 2017 Ford F150?

Carefully remove the MAF sensor and use a dedicated MAF sensor cleaner to spray the sensor element. Avoid touching or damaging the sensor during cleaning.

8. Can a vacuum leak cause a P0103 code on a 2017 Ford F150?

Yes, a vacuum leak can alter the airflow measurements, potentially leading to a P0103 code.

9. What tools are needed to diagnose a P0103 code on a 2017 Ford F150?

Youâ€™ll need an OBDII scanner, a multimeter to check electrical connections, and possibly a MAF sensor cleaner for maintenance.

10. How much does it typically cost to repair a P0103 code on a 2017 Ford F150?

Repair costs vary, but replacing a MAF sensor can cost between $100 and $300, while fixing wiring or air leaks may add to the expense depending on labor rates.