AutoCodes – Honda – P0351 2018 Honda CR-V

P0351 2018 Honda CR-V 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 2018 Honda CR-V 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 226

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 2018 Honda CR-V 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 2018 Honda CR-V - No. 1 Cylinder Ignition Coil Circuit Malfunction - AutoCodes.com — P0351 2018 Honda CR-V Code - No. 1 Cylinder Ignition Coil Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0351 2018 Honda CR-V?

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 2018 Honda CR-V?

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 2018 Honda CR-V 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 2018 Honda CR-V code?

Need more information on how to fix the P0351 2018 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0351 2018 Honda CR-V code diagnosed by a professional: Find a repair shop in your area

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 2018 Honda CR-V Code

1. What are the common symptoms of OBDII code P0351 (No. 1 Cylinder Ignition Coil Circuit Malfunction) in a 2018 Honda CR-V?

The common symptoms of P0351 in a 2018 Honda CR-V include engine misfires, rough idling, loss of power, and in some cases, the Check Engine light illuminating.

2. What are the possible causes of OBDII code P0351 in a 2018 Honda CR-V?

The possible causes of code P0351 in a 2018 Honda CR-V may include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).

3. How can I diagnose the No. 1 Cylinder Ignition Coil Circuit Malfunction in my 2018 Honda CR-V?

To diagnose P0351, you can use a code reader to retrieve the specific trouble code, visually inspect the ignition coil and its connections, test the ignition coil's resistance, and check for any damaged wiring or connectors in the circuit.

4. Can I still drive my 2018 Honda CR-V with OBDII code P0351 active?

It is not recommended to drive your 2018 Honda CR-V with code P0351 active, as it can lead to further damage to the engine and other components. It is advisable to address the issue promptly.

5. How do I repair OBDII code P0351 in my 2018 Honda CR-V?

To repair code P0351, you may need to replace the faulty ignition coil, repair or replace damaged wiring or connectors, and clear the trouble codes from the ECM using a code reader.

6. Will resetting the Check Engine light resolve OBDII code P0351 in a 2018 Honda CR-V?

Simply resetting the Check Engine light will not resolve the underlying issue causing P0351. It is essential to diagnose the problem, address the root cause, and clear the trouble codes after making necessary repairs.

7. Are there any preventative measures to avoid OBDII code P0351 in a 2018 Honda CR-V?

Regularly maintaining your vehicle, including scheduled spark plug and ignition system inspections, can help prevent issues like P0351. Timely replacement of worn-out ignition components can also aid in preventing this code.

8. Can extreme weather conditions affect the occurrence of OBDII code P0351 in a 2018 Honda CR-V?

Extreme weather conditions, especially excessive heat or moisture, can potentially impact the ignition system and lead to issues like code P0351. It is important to keep your vehicle well-maintained in all weather conditions.

9. Is it possible for a DIY enthusiast to fix OBDII code P0351 in a 2018 Honda CR-V?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address code P0351 by following repair guides, replacing the ignition coil, checking wiring connections, and clearing the trouble codes.

10. How long can I safely wait before addressing OBDII code P0351 in my 2018 Honda CR-V?

It is recommended not to delay addressing P0351 in your 2018 Honda CR-V, as driving with this code active can lead to performance issues and potential damage to the engine. It is best to address the problem promptly.