AutoCodes – Chevrolet – P0351 2017 Chevrolet Silverado

P0351 2017 Chevrolet Silverado Code - Ignition Coil 1 Control Circuit

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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: P0351 2017 Chevrolet Silverado indicates Ignition Coil 1 Control Circuit.
Common causes: Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 636

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 Mar 25, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0351 2017 Chevrolet Silverado Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.

OBDII Code P0351 2017 Chevrolet Silverado - Ignition Coil 1 Control Circuit - AutoCodes.com — P0351 2017 Chevrolet Silverado Code - Ignition Coil 1 Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0351 2017 Chevrolet Silverado?

Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0351 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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 P0351 2017 Chevrolet Silverado Code

1. What does the OBDII code P0351 mean on a 2017 Chevrolet Silverado?

P0351 indicates an issue with the ignition coil "A" primary or secondary control circuit, usually related to cylinder 1.

2. What are the symptoms of code P0351 on a 2017 Chevrolet Silverado?

Common symptoms include engine misfires, rough idling, reduced power, poor fuel economy, and the check engine light being illuminated.

3. What causes the P0351 code to appear in a Chevrolet Silverado?

Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a defective spark plug, or an issue with the Powertrain Control Module (PCM).

4. Can I drive my 2017 Chevrolet Silverado with a P0351 code?

Driving with a P0351 code is not recommended as it can lead to further engine damage, reduced performance, and increased emissions.

5. How do I diagnose code P0351 on my Chevrolet Silverado?

Start by checking the ignition coil, wiring, and connectors for damage or corrosion. Use a multimeter to test the coil's resistance and verify proper voltage supply.

6. How do I fix the P0351 code on a 2017 Chevrolet Silverado?

Repairs may include replacing the faulty ignition coil, repairing damaged wiring or connectors, replacing the spark plug, or reprogramming or replacing the PCM if necessary.

7. How much does it cost to fix a P0351 code on a Chevrolet Silverado?

Repair costs can range from $50 to $150 for a new ignition coil, plus labor. Additional costs may apply if wiring repairs or PCM replacement are needed.

8. Can a bad spark plug cause the P0351 code in my Silverado?

Yes, a worn or faulty spark plug can cause excessive resistance, leading to ignition coil circuit issues and triggering the P0351 code.

9. Do I need to replace all ignition coils if I have a P0351 code?

Not necessarily. If only the coil on cylinder 1 is faulty, you can replace just that coil. However, if others show signs of wear, it might be wise to replace them as well.

10. Will clearing the P0351 code fix the problem on my 2017 Silverado?

Clearing the code without addressing the root cause will not fix the problem, and the code will likely return. Proper diagnosis and repair are necessary.