AutoCodes – GMC – P0355 2014 GMC Sierra

P0355 2014 GMC Sierra Code - Ignition Coil 5 Control Circuit

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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
P0355 2014 GMC Sierra indicates Ignition Coil 5 Control Circuit.
Common causes
Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 232
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P0355 2014 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 P0355 2014 GMC Sierra - Ignition Coil 5 Control Circuit - AutoCodes.com
P0355 2014 GMC Sierra Code - Ignition Coil 5 Control Circuit

What are the Possible Causes of the DTC P0355 2014 GMC Sierra?

  • Faulty Ignition Coil 5
  • Ignition Coil 5 harness is open or shorted
  • Ignition Coil 5 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0355 2014 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 P0355 2014 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 P0355 2014 GMC Sierra code?

Need more information on how to fix the P0355 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0355 2014 GMC Sierra 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 P0355 2014 GMC Sierra Code

1. What does OBDII code P0355 for a 2014 GMC Sierra indicate?

This code indicates a problem with the ignition coil 5 control circuit in your vehicle.

2. What are the common symptoms of OBDII code P0355 in a GMC Sierra?

Common symptoms include engine misfires, rough idling, lack of power, and illuminated Check Engine Light.

3. What are the possible causes of OBDII code P0355 in a 2014 GMC Sierra?

Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the issue causing OBDII code P0355 in my GMC Sierra?

You can diagnose the issue by checking the ignition coil 5, inspecting the wiring and connectors for damage, and using a scan tool to monitor the circuit's performance.

5. Can I continue driving my GMC Sierra with OBDII code P0355 present?

It is not recommended to continue driving with this code, as it can lead to further engine damage and reduced performance.

6. How can I repair OBDII code P0355 in my 2014 GMC Sierra?

Depending on the underlying cause, you may need to replace the ignition coil, repair damaged wiring or connectors, or reprogram the ECM.

7. What are some tips for preventing OBDII code P0355 from reoccurring in my GMC Sierra?

Regular maintenance, such as checking and replacing ignition components as needed, can help prevent this code from reoccurring.

8. Is it possible to clear OBDII code P0355 in a GMC Sierra with a simple reset?

While clearing the code may temporarily turn off the Check Engine Light, the underlying issue causing the code will still need to be addressed for a permanent solution.

9. Can a DIY enthusiast fix OBDII code P0355 in a 2014 GMC Sierra?

Depending on your experience and tools available, you may be able to address this issue yourself by following repair guides and using the necessary equipment.

10. How much can I expect to pay to repair OBDII code P0355 in my GMC Sierra at a professional mechanic?

Repair costs can vary depending on the specific cause of the issue, but you can expect to pay anywhere from $100 to $300 for parts and labor.

Discuss the causes and fixes for P0355 2014 GMC Sierra OBDII Code

Code P0355 2014 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play