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Engine-Codes – Ford – P0355 2011 Ford Fusion

P0355 2011 Ford Fusion Code - Ignition Coil 'E' Primary/Secondary Circuit

Quick Answer

The P0355 code for a 2011 Ford Fusion indicates a problem with the Ignition Coil 'E' Primary/Secondary Circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM). 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
P0355 2011 Ford Fusion indicates Ignition Coil 'E' Primary/Secondary Circuit .
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0355 2011 Ford Fusion Description

The P0355 code for a 2011 Ford Fusion indicates a problem with the Ignition Coil 'E' Primary/Secondary Circuit. This means that there is an issue with the electrical circuit that controls the ignition coil for cylinder 'E' in the engine. The ignition coil is responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs, which ignites the air-fuel mixture in the combustion chamber.

OBDII Code P0355 2011 Ford Fusion - Ignition Coil 'E' Primary/Secondary Circuit
P0355 2011 Ford Fusion Code - Ignition Coil 'E' Primary/Secondary Circuit

Common Causes of P0355 2011 Ford Fusion

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Issues with the engine control module (ECM)
  4. Corrosion or moisture in the electrical connections
  5. Overheating of the ignition coil

Symptoms of P0355 2011 Ford Fusion

  1. Engine misfires
  2. Rough idling or vibrations
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P0355 2011 Ford Fusion

  1. Use a scan tool to confirm the P0355 code and identify the specific cylinder 'E' ignition coil.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Test the ignition coil for proper functioning using a multimeter. Replace the ignition coil if it fails the test.
  4. Clear the code from the ECM memory using the scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to check for underlying issues with the ECM or other components in the ignition system.

Cost to Fix P0355 2011 Ford Fusion

The typical repair costs for addressing the P0355 code in a 2011 Ford Fusion can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

When is the Code Detected?

Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a valid pulse signal from the ignition coil.

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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 P0355 2011 Ford Fusion Code

1. What does OBDII code P0355 on a 2011 Ford Fusion indicate?

The code P0355 points to an issue with the Ignition Coil 'E' Primary/Secondary Circuit in the ignition system of the vehicle.

2. What are the common symptoms of a P0355 error code in a 2011 Ford Fusion?

Common symptoms include engine misfires, rough idling, lack of power, and in some cases, the Check Engine light may illuminate on the dashboard.

3. What are the possible causes of the P0355 error code on a 2011 Ford Fusion?

Possible causes include a faulty ignition coil 'E', wiring issues in the ignition coil circuit, a loose connection, or a malfunctioning PCM (Powertrain Control Module).

4. How can I diagnose the cause of a P0355 error code in my 2011 Ford Fusion?

You can use a scan tool to check for the specific cylinder misfire data, perform a visual inspection of the ignition coil 'E' and its wiring, and conduct a continuity test to identify any potential faults.

5. Can driving with a P0355 error code in a 2011 Ford Fusion cause further damage?

Continued driving with this issue can potentially lead to more severe problems such as catalytic converter damage, reduced fuel efficiency, and permanent engine damage.

6. How should I repair a P0355 error code in my 2011 Ford Fusion?

The most common repair involves replacing the faulty ignition coil 'E' with a new one, ensuring all connections are secure, and clearing the error code with a scan tool.

7. Are there any preventive maintenance tips to avoid the P0355 error code in a 2011 Ford Fusion?

Regularly inspecting and replacing ignition system components at recommended intervals can help prevent issues like the P0355 code from occurring.

8. Can a DIY enthusiast fix a P0355 error code in a 2011 Ford Fusion?

While some may be able to replace the ignition coil themselves, diagnosing and repairing electrical issues related to the P0355 code may require professional expertise.

9. How much does it typically cost to repair a P0355 error code in a 2011 Ford Fusion?

The cost can vary depending on the labor rates in your area, but replacing an ignition coil 'E' and related components may range from $150 to $300.

10. Is it safe to continue driving my 2011 Ford Fusion with a P0355 error code?

It's not recommended to drive the vehicle with a P0355 code present, as it can lead to performance issues and potential long-term damage to the engine.

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