AutoCodesFord – P0356 2009 Ford Fusion

P0356 2009 Ford Fusion Code - Ignition Coil 'F' Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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
P0356 2009 Ford Fusion indicates Ignition Coil 'F' Primary/Secondary Circuit .
Common causes
Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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 3,129
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0356 2009 Ford Fusion Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.
OBDII Code P0356 2009 Ford Fusion - Ignition Coil 'F' Primary/Secondary Circuit  - AutoCodes.com
P0356 2009 Ford Fusion Code - Ignition Coil 'F' Primary/Secondary Circuit

What are the Possible Causes of the DTC P0356 2009 Ford Fusion?

  • Faulty Ignition Coil 6
  • Ignition Coil 6 harness is open or shorted
  • Ignition Coil 6 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0356 2009 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 P0356 2009 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 P0356 2009 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 P0356 2009 Ford Fusion Code

What does the OBDII code P0356 mean for a 2009 Ford Fusion?

Code P0356 indicates an issue with the ignition coil 'F' primary or secondary circuit, which is responsible for delivering spark to the engine.

What are the symptoms of code P0356 in a 2009 Ford Fusion?

Symptoms may include engine misfires, rough idling, reduced power, poor fuel economy, and possibly an illuminated check engine light.

What causes the P0356 code to appear in a 2009 Ford Fusion?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a malfunctioning Powertrain Control Module (PCM).

Can driving with code P0356 damage my 2009 Ford Fusion?

Yes, driving with this code can lead to engine misfires, which may cause damage to the catalytic converter and other engine components.

How do I diagnose the P0356 code on my 2009 Ford Fusion?

Start by inspecting the ignition coil 'F', checking for damaged wiring or connectors, and testing the coil for proper operation. Use a multimeter or scan tool for further diagnostics.

How do I fix the P0356 code on a 2009 Ford Fusion?

Repairs may involve replacing the ignition coil, repairing or replacing damaged wiring, or reprogramming or replacing the PCM if necessary.

Can a bad spark plug cause the P0356 code on a 2009 Ford Fusion?

A bad spark plug is not a direct cause of this code, but it can contribute to misfires, which may be mistaken for ignition coil circuit issues.

How much does it cost to repair the P0356 code on a 2009 Ford Fusion?

Repair costs vary but typically range from $100 to $300 for ignition coil replacement. Wiring repairs or PCM replacements may be more expensive.

What tools do I need to fix the P0356 code on a 2009 Ford Fusion?

You’ll need a scan tool, multimeter, and basic hand tools to inspect and repair wiring or replace the ignition coil.

Is it safe to clear the P0356 code without fixing the issue on a 2009 Ford Fusion?

Clearing the code without addressing the problem may result in the code returning and could lead to more severe engine issues over time.

Discuss the causes and fixes for P0356 2009 Ford Fusion OBDII Code

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