AutoCodes – Honda – P0351 Honda

P0351 Honda Code - No. 1 Cylinder Ignition Coil Circuit Malfunction

Quick Answer

The ignition coil is a part of the engine ignition system. Common causes include Faulty No, 1 Ignition Coil, No. 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: P0351 Honda indicates No. 1 Cylinder Ignition Coil Circuit Malfunction.
Common causes: Common causes include Faulty No, 1 Ignition Coil, No.
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 21,039

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 Aug 17, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0351 Honda Description

The ignition coil is a part of the engine ignition system. It converts low voltage from the battery into high voltage needed to create a spark in the spark plugs. The ignition coil is triggered at the optimum time by the Powertrain Control Module (PCM) ON/OFF command. The PCM detects a malfunction when the engine is running and the return signal does not change for a specified time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0351 Honda - No. 1 Cylinder Ignition Coil Circuit Malfunction - AutoCodes.com — P0351 Honda Code - No. 1 Cylinder Ignition Coil Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0351 Honda?

Faulty No. 1 Ignition Coil
No. 1 Ignition Coil harness is open or shorted
No. 1 Ignition Coil circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0351 Honda?

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 P0351 Honda 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 P0351 Honda code?

Need more information on how to fix the P0351 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0351 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P0351 2008 Honda Accord — Ignition Coil 1 Circuit Malfunction
P0351 2009 Honda Accord — Ignition Coil 1 Circuit Malfunction
P0351 2010 Honda Accord — Ignition Coil 1 Circuit Malfunction
P0351 2016 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction
P0351 2017 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction
P0351 2018 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction
P0351 2019 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction
P0351 2020 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction
P0351 2021 Honda CR-V — No. 1 Cylinder Ignition Coil Circuit Malfunction

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 P0351 Honda Code

1. What are the common symptoms of OBDII code P0351 in a Honda?

The common symptoms of OBDII code P0351 in a Honda include engine misfires, rough idling, loss of power, and illuminated Check Engine Light.

2. What does the OBDII code P0351 for "No. 1 Cylinder Ignition Coil Circuit Malfunction" indicate in a Honda?

OBDII code P0351 in a Honda indicates a malfunction in the ignition coil circuit of the No. 1 cylinder, leading to potential ignition system issues.

3. What are the possible causes of OBDII code P0351 in a Honda?

The possible causes of OBDII code P0351 in a Honda include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P0351 in my Honda?

To diagnose OBDII code P0351 in your Honda, you can use an OBDII scanner to read the code, inspect the ignition coil and its connections, check for damaged wiring, and perform a resistance test on the coil.

5. Can I still drive my Honda with OBDII code P0351 active?

It is not recommended to drive your Honda with OBDII code P0351 active, as it can lead to further engine damage and decreased performance. It's best to address the issue promptly.

6. What are the repair options for OBDII code P0351 in a Honda?

Repair options for OBDII code P0351 in a Honda include replacing the faulty ignition coil, repairing damaged wiring or connectors, resetting the ECM, and clearing the trouble code.

7. Is it possible to reset the OBDII code P0351 in a Honda without fixing the issue?

While you can clear the OBDII code P0351 in a Honda without fixing the underlying problem, it's not recommended, as the issue will persist and potentially worsen over time.

8. How much does it cost to repair OBDII code P0351 in a Honda?

The cost to repair OBDII code P0351 in a Honda can vary depending on the exact cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P0351 in a Honda?

A DIY enthusiast with automotive repair experience can potentially fix OBDII code P0351 in a Honda by following service manuals, using proper tools, and ensuring safety precautions are taken.

10. How often does OBDII code P0351 occur in Honda vehicles?

OBDII code P0351, indicating a No. 1 Cylinder Ignition Coil Circuit Malfunction, can occur in Honda vehicles, especially in older models or those with high mileage, due to wear and tear on ignition system components.