P0354 2014 GMC Sierra Code - Ignition Coil 4 Control Circuit
Quick Answer
The P0354 diagnostic trouble code (DTC) refers to an issue with the ignition coil 4 control circuit in a 2014 GMC Sierra. Common causes include Faulty ignition coil, Damaged wiring or connectors in the control 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 2014 GMC Sierra indicates Ignition Coil 4 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the control 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.
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Code P0354 2014 GMC Sierra Description
The P0354 diagnostic trouble code (DTC) refers to an issue with the ignition coil 4 control circuit in a 2014 GMC Sierra. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the combustion chamber. In this specific case, the code indicates that there is a problem with the control circuit for the ignition coil that is assigned to cylinder 4.
Common Causes of P0354 2014 GMC Sierra
- Faulty ignition coil
- Damaged wiring or connectors in the control circuit
- Issues with the engine control module (ECM)
- Cylinder 4 problems
- Environmental factors such as water intrusion or corrosion
Symptoms of P0354 2014 GMC Sierra
- Engine misfires or rough idling
- Decreased fuel efficiency
- Engine stalling
- Illuminated check engine light
- Lack of power or acceleration
How to Fix P0354 2014 GMC Sierra
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the ignition coil, wiring, and connectors.
- If the ignition coil is determined to be faulty, replace it with a new, high-quality component that matches the manufacturer's specifications for the vehicle.
- Check and repair any damaged wiring or connectors in the control circuit to ensure proper electrical connections.
- Test the ignition coil control circuit for continuity and proper voltage to confirm that the issue has been resolved.
- Clear the DTC codes from the ECM and test drive the vehicle to verify that the symptoms have been eliminated.
Cost to Fix P0354 2014 GMC Sierra
The typical repair costs for addressing the P0354 code in a 2014 GMC Sierra can vary depending on the specific cause of the issue and the cost of parts and labor. In general, replacing an ignition coil can range from $100 to $300, while repairing damaged wiring or connectors may add additional costs. Labor rates at auto repair shops can vary, but the average hourly rate is between $80 and $150. It's advisable to consult with a qualified mechanic or service center for a more accurate estimate based on your location and vehicle specifications.
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