AutoCodes – GMC – P0354 2016 GMC Sierra

P0354 2016 GMC Sierra Code - Ignition Coil 4 Control Circuit

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. 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 2016 GMC Sierra indicates Ignition Coil 4 Control Circuit.
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 231

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
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0354 2016 GMC Sierra 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 P0354 2016 GMC Sierra - Ignition Coil 4 Control Circuit - AutoCodes.com — P0354 2016 GMC Sierra Code - Ignition Coil 4 Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0354 2016 GMC Sierra?

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 2016 GMC Sierra?

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 2016 GMC Sierra 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 2016 GMC Sierra code?

Need more information on how to fix the P0354 2016 GMC Sierra 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 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.