AutoCodes – Honda – P0354 2010 Honda Accord

P0354 2010 Honda Accord Code - Ignition Coil 4 Circuit Malfunction

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 2010 Honda Accord indicates Ignition Coil 4 Circuit Malfunction.
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 4,244

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 P0354 2010 Honda Accord 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 2010 Honda Accord - Ignition Coil 4 Circuit Malfunction - AutoCodes.com — P0354 2010 Honda Accord Code - Ignition Coil 4 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0354 2010 Honda Accord?

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 2010 Honda Accord?

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 P0354 2010 Honda Accord 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 2010 Honda Accord code?

Need more information on how to fix the P0354 2010 Honda Accord code? Get Access to Factory Service Manuals

Need Help with the 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 P0354 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P0354 on a 2010 Honda Accord?

- Common symptoms include engine misfires, rough idle, lack of power, and illuminated Check Engine light.

2. What does the OBDII code P0354 on a 2010 Honda Accord indicate?

- The code P0354 indicates a malfunction in the ignition coil 4 circuit of the vehicle.

3. What are the possible causes of OBDII code P0354 on a 2010 Honda Accord?

- Possible causes include a faulty ignition coil, damaged wiring or connectors, issues with the ignition coil circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the cause of OBDII code P0354 on my 2010 Honda Accord?

- Diagnosis typically involves checking the ignition coil, inspecting the wiring and connectors for damage, testing the circuit for continuity, and scanning the ECM for any related faults.

5. Can I still drive my 2010 Honda Accord with OBDII code P0354?

- It is not recommended to drive the vehicle with a misfiring ignition coil, as it can lead to further damage to the engine components. Immediate repair is advised.

6. How can I repair OBDII code P0354 on my 2010 Honda Accord?

- Repair may involve replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, or addressing any issues with the ignition coil circuit as needed.

7. Is it possible to reset the OBDII code P0354 on a 2010 Honda Accord by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is advisable to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.

8. Are there any preventive measures to avoid OBDII code P0354 on a 2010 Honda Accord?

- Regular maintenance, such as inspecting and replacing ignition components as needed, can help prevent issues that may trigger the code P0354.

9. Can a DIY enthusiast resolve OBDII code P0354 on a 2010 Honda Accord?

- Depending on the level of expertise, a DIY enthusiast may be able to address the issue by following proper diagnostic procedures and making necessary repairs or replacements.

10. How soon should I address OBDII code P0354 on my 2010 Honda Accord?

- It is recommended to address the issue as soon as possible to prevent further damage to the engine and ensure optimal vehicle performance.