AutoCodes – Ford – P0503 2011 Ford Fusion

P0503 2011 Ford Fusion Code - Vehicle Speed Sensor 'A' Intermittent

Quick Answer

Indicates poor or noisy VSS performance. Common causes include Faulty Vehicle Speed Sensor, Vehicle speed sensor harness or connectors is open or shorted, Vehicle speed 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: P0503 2011 Ford Fusion indicates Vehicle Speed Sensor 'A' Intermittent.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Vehicle speed sensor harness or connectors is open or shorted, Vehicle speed 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.

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Code Popularity 1,817

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0503 2011 Ford Fusion Description

Indicates poor or noisy VSS performance. Vehicle speed data is received from either the VSS, the transfer case speed sensor (TCSS), or the anti lock brake system (ABS) control module.

OBDII Code P0503 2011 Ford Fusion - Vehicle Speed Sensor 'A' Intermittent - AutoCodes.com — P0503 2011 Ford Fusion Code - Vehicle Speed Sensor 'A' Intermittent

What does this mean?

What are the Possible Causes of the DTC P0503 2011 Ford Fusion?

Faulty Vehicle Speed Sensor
Vehicle speed sensor harness or connectors is open or shorted
Vehicle speed sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0503 2011 Ford Fusion?

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 P0503 2011 Ford Fusion 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 P0503 2011 Ford Fusion code?

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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 P0503 2011 Ford Fusion Code

1. What are the common symptoms of OBDII code P0503 in a 2011 Ford Fusion?

- Common symptoms include erratic speedometer readings, cruise control issues, and potential transmission shifting problems.

2. What does the OBDII code P0503 'Vehicle Speed Sensor 'A' Intermittent' indicate in a 2011 Ford Fusion?

- This code indicates that the vehicle speed sensor 'A' is sending intermittent or erratic signals to the engine control module.

3. What are the possible causes of OBDII code P0503 in a 2011 Ford Fusion?

- Potential causes include a faulty vehicle speed sensor, damaged wiring or connectors, a malfunctioning instrument cluster, or issues with the engine control module.

4. How can I diagnose the OBDII code P0503 in my 2011 Ford Fusion?

- Diagnosing this code involves checking the vehicle speed sensor for proper operation, inspecting the wiring for damage, and using a scan tool to monitor sensor data for inconsistencies.

5. Can I continue driving my 2011 Ford Fusion with OBDII code P0503?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential transmission or speedometer-related issues.

6. How can I repair OBDII code P0503 in my 2011 Ford Fusion?

- Repair options include replacing the vehicle speed sensor, repairing any damaged wiring, addressing issues with the instrument cluster, or reprogramming the engine control module if necessary.

7. Are there any DIY tips for fixing OBDII code P0503 in a 2011 Ford Fusion?

- DIY enthusiasts can start by inspecting the vehicle speed sensor and its connections for visible damage before considering sensor replacement or seeking professional help.

8. Will resetting the OBDII code P0503 in my 2011 Ford Fusion make it go away permanently?

- Simply resetting the code may temporarily clear the warning light, but if the underlying issue causing P0503 is not fixed, the code is likely to reappear.

9. How much does it typically cost to repair OBDII code P0503 in a 2011 Ford Fusion?

- The cost of repairing P0503 can vary depending on the specific cause, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.

10. Can a faulty vehicle speed sensor cause other problems besides triggering OBDII code P0503 in a 2011 Ford Fusion?

- Yes, a malfunctioning vehicle speed sensor can also lead to issues like inaccurate speed readings, ABS system faults, and improper cruise control operation in addition to triggering the specific P0503 trouble code.