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Engine-Codes – GMC – P0354 2016 GMC Sierra

P0354 2016 GMC Sierra Code - Ignition Coil 4 Control Circuit

Quick Answer

The diagnostic trouble code P0354 in a 2016 GMC Sierra specifically refers to an issue with the ignition coil 4 control circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM). 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 2016 GMC Sierra indicates Ignition Coil 4 Control Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0354 2016 GMC Sierra Description

The diagnostic trouble code P0354 in a 2016 GMC Sierra specifically refers to an issue with the ignition coil 4 control circuit. The ignition coil is a crucial component in the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the air-fuel mixture in the engine cylinders. In this case, the control circuit for ignition coil 4 is experiencing a malfunction, which can lead to various performance issues in the vehicle.

OBDII Code P0354 2016 GMC Sierra - Ignition Coil 4 Control Circuit
P0354 2016 GMC Sierra Code - Ignition Coil 4 Control Circuit

Common Causes of P0354 2016 GMC Sierra

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Issues with the engine control module (ECM)
  4. Problems with the power supply to the ignition coil
  5. Corrosion or moisture in the ignition coil circuit

Symptoms of P0354 2016 GMC Sierra

  1. Misfires
  2. Rough idling
  3. Poor acceleration
  4. Stalling of the engine
  5. Decreased fuel efficiency

How to Fix P0354 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a scan tool to pinpoint the problem within the ignition coil 4 control circuit.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or corrosion. Replace any faulty components.
  3. Test the power supply to the ignition coil to ensure it is functioning correctly.
  4. Clear the diagnostic trouble code from the vehicle's ECM and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be needed to identify any underlying issues with the ECM or other components.

Cost to Fix P0354 2016 GMC Sierra

The typical repair costs for addressing the P0354 code in a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty ignition coil can cost between $100 and $300, while addressing wiring or connector problems may range from $50 to $150. Labor costs at auto repair shops typically range from $80 to $150 per hour, with total repair costs potentially amounting to a few hundred dollars. It's advisable to check with local repair shops for more accurate estimates based on the specific circumstances of the vehicle.

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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 2016 GMC Sierra Code

1. What does OBDII code P0354 on a 2016 GMC Sierra mean?

The code P0354 indicates a problem with the ignition coil 4 control circuit in the vehicle's engine.

2. What are the common symptoms of OBDII code P0354 in a 2016 GMC Sierra?

Common symptoms include engine misfires, rough idling, poor acceleration, and in some cases, the Check Engine light may illuminate.

3. What are the possible causes of OBDII code P0354 on a 2016 GMC Sierra?

Potential causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, issues with the PCM (powertrain control module), or a problem with the spark plug related to the affected ignition coil.

4. How can I diagnose the issue causing OBDII code P0354 in my 2016 GMC Sierra?

Diagnosing the problem may involve inspecting the ignition coil, checking the wiring and connectors for damage, testing the spark plug related to the affected coil, and using a scan tool to gather diagnostic information.

5. Can I continue driving my 2016 GMC Sierra with OBDII code P0354?

It is not recommended to drive the vehicle with code P0354 as it can lead to further damage to the engine and catalytic converter. It's best to address the issue promptly.

6. How can I repair OBDII code P0354 on my 2016 GMC Sierra?

Repairing the issue may involve replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, addressing any spark plug issues, or reprogramming the PCM if necessary.

7. Are there any preventive maintenance tips to avoid OBDII code P0354 on a 2016 GMC Sierra?

Regularly servicing your vehicle, including routine inspections of the ignition system components, can help prevent issues that may trigger code P0354.

8. Can a DIY enthusiast fix OBDII code P0354 on a 2016 GMC Sierra?

DIY enthusiasts with the necessary tools and knowledge of automotive repair may be able to address code P0354 by following a repair manual specific to their vehicle model.

9. How much does it typically cost to repair OBDII code P0354 on a 2016 GMC Sierra?

The cost of repairing code P0354 can vary depending on the exact cause of the issue, but it may involve expenses for parts and labor, which could range from $100 to $300 or more.

10. Will resetting the Check Engine light resolve OBDII code P0354 on a 2016 GMC Sierra?

Resetting the Check Engine light may temporarily turn off the warning indicator, but it will not fix the underlying issue causing code P0354. It's essential to diagnose and repair the problem to prevent further complications.

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