Engine-CodesGMC – P0355 2014 GMC Sierra

P0355 2014 GMC Sierra Code - Ignition Coil 5 Control Circuit

Quick Answer

The P0355 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the ignition coil 5 control circuit. Common causes include Faulty ignition coil for cylinder 5, Damaged or corroded wiring in the ignition coil circuit, Malfunctioning 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
P0355 2014 GMC Sierra indicates Ignition Coil 5 Control Circuit.
Common causes
Common causes include Faulty ignition coil for cylinder 5, Damaged or corroded wiring in the ignition coil circuit, Malfunctioning 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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0355 2014 GMC Sierra Description

The P0355 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the ignition coil 5 control circuit. The ignition coil is a crucial component in the ignition system of a vehicle, responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs. Ignition coil 5 specifically refers to the coil assigned to cylinder 5 in the engine.

OBDII Code P0355 2014 GMC Sierra - Ignition Coil 5 Control Circuit
P0355 2014 GMC Sierra Code - Ignition Coil 5 Control Circuit

Common Causes of P0355 2014 GMC Sierra

  1. Faulty ignition coil for cylinder 5
  2. Damaged or corroded wiring in the ignition coil circuit
  3. Malfunctioning ECM
  4. Poor electrical connection in the ignition system

Symptoms of P0355 2014 GMC Sierra

  1. Engine misfires or hesitation during acceleration
  2. Rough idling or vibrations when the vehicle is stationary
  3. Decreased fuel efficiency
  4. Illuminated check engine light on the dashboard

How to Fix P0355 2014 GMC Sierra

  1. Diagnose the specific cause of the issue using a scan tool to pinpoint the faulty component
  2. Inspect the wiring and connections related to the ignition coil 5 circuit for any damage or corrosion
  3. Replace the ignition coil if it is found to be faulty
  4. Test the ignition coil control circuit to ensure proper functionality
  5. Clear the DTC and test drive the vehicle to confirm the issue has been resolved

Cost to Fix P0355 2014 GMC Sierra

The cost of repairing the P0355 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of a new ignition coil can range from $50 to $200, with additional labor costs for installation. Overall, the repair for this issue can typically range from $150 to $400, including parts and labor. It's recommended to consult with a professional mechanic to get an accurate estimate based on your location and vehicle specifications. Keep in mind that labor rates can vary between different auto repair shops.

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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 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.

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