AutoCodesFord – P0354 Ford

P0354 Ford Code - Ignition Coil 'D' Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 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
P0354 Ford indicates Ignition Coil 'D' Primary/Secondary Circuit .
Common causes
Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 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 109,753
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0354 Ford 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 P0354 Ford - Ignition Coil 'D' Primary/Secondary Circuit  - AutoCodes.com
P0354 Ford Code - Ignition Coil 'D' Primary/Secondary Circuit

What are the Possible Causes of the DTC P0354 Ford?

  • Faulty Ignition Coil 4
  • Ignition Coil 4 harness is open or shorted
  • Ignition Coil 4 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0354 Ford?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0354 Ford 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 P0354 Ford code?

Need more information on how to fix the P0354 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0354 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

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 P0354 Ford Code

1. What are the common symptoms of OBDII code P0354 in a Ford vehicle?

- Common symptoms include engine misfires, rough idling, poor acceleration, and an illuminated check engine light.

2. What does the OBDII code P0354 for a Ford vehicle indicate?

- This code indicates a problem with the Ignition Coil 'D' Primary/Secondary Circuit in the vehicle's ignition system.

3. What are the possible causes of OBDII code P0354 in a Ford vehicle?

- Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the PCM (Powertrain Control Module).

4. How can I diagnose the Ignition Coil 'D' Primary/Secondary Circuit issue related to OBDII code P0354 in my Ford?

- Use a multimeter to test the resistance of the ignition coil, check for damaged wires or connectors, and perform a thorough visual inspection of the ignition system components.

5. Can a bad spark plug cause OBDII code P0354 to trigger in a Ford vehicle?

- Yes, a faulty spark plug can lead to misfires and trigger the P0354 code. It's recommended to inspect and replace spark plugs if necessary when dealing with this code.

6. Should I replace all ignition coils if OBDII code P0354 is detected in my Ford?

- It's not necessary to replace all ignition coils, but it's recommended to inspect and test each coil to identify the specific one causing the issue before replacing it.

7. Are there any DIY repair tips for fixing OBDII code P0354 in a Ford vehicle?

- DIY repair tips include checking and cleaning the connectors, testing the ignition coil resistance, and ensuring proper grounding of the ignition system components.

8. Can driving with OBDII code P0354 present cause further damage to my Ford vehicle?

- Continuing to drive with this code present can potentially lead to more severe engine issues, reduced fuel efficiency, and damage to other ignition system components.

9. How much does it typically cost to repair OBDII code P0354 in a Ford vehicle?

- The cost of repairing this code can vary depending on the root cause, but it may range from $100 to $300 for parts and labor.

10. Is it safe to clear the OBDII code P0354 and ignore the issue in my Ford vehicle?

- Clearing the code without addressing the underlying problem is not recommended, as it may lead to ongoing engine performance issues and potential safety hazards.

Discuss the causes and fixes for P0354 Ford OBDII Code

  • It's very hard to find similar data for the Ford Edge. Comparisons aren't working for me, and trying to use a Fusion or F-150 tutorial may get me into trouble. Guess I'll have to go to the repair shop. Always high prices, long waits, and non-thorough service. (in my colluded area)

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