P0351 2014 GMC Sierra Code - Ignition Coil 1 Control Circuit
Quick Answer
The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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
- P0351 2014 GMC Sierra indicates Ignition Coil 1 Control Circuit.
- Common causes
- Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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.
Code P0351 2014 GMC Sierra Description
What are the Possible Causes of the DTC P0351 2014 GMC Sierra?
- Faulty Ignition Coil 1
- Ignition Coil 1 harness is open or shorted
- Ignition Coil 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0351 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 P0351 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 P0351 2014 GMC Sierra code?
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Frequently Asked Questions about P0351 2014 GMC Sierra Code
What does the OBDII code P0351 mean on a 2014 GMC Sierra?
P0351 indicates an issue with the ignition coil 1 control circuit, meaning the engine control module (ECM) has detected a fault in the electrical circuit for the ignition coil on cylinder 1.
What are the symptoms of code P0351 in a 2014 GMC Sierra?
Symptoms may include engine misfires, rough idling, reduced power, poor fuel economy, and an illuminated check engine light.
What causes the P0351 code to appear in a 2014 GMC Sierra?
Common causes include a faulty ignition coil, damaged or corroded wiring, a malfunctioning ECM, or a bad spark plug.
Can I drive my 2014 GMC Sierra with the P0351 code?
Driving with this code is not recommended, as it can cause further damage to the engine or catalytic converter due to unburnt fuel from misfires.
How do I diagnose the P0351 code on my GMC Sierra?
Inspect the ignition coil and wiring for damage or corrosion, test the ignition coil with a multimeter, and check the spark plug for wear or fouling.
How do I fix the P0351 code in a 2014 GMC Sierra?
Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring, replacing a bad spark plug, or in rare cases, replacing the ECM.
What tools are needed to troubleshoot the P0351 code?
You'll need an OBDII scanner, a multimeter, and basic hand tools to inspect wiring and replace components.
How much does it cost to fix the P0351 code on a 2014 GMC Sierra?
Repair costs can vary, typically ranging from $50 to $200 for parts like an ignition coil or spark plug, plus labor if a mechanic is involved.
Can a bad spark plug cause the P0351 code?
Yes, a worn or fouled spark plug can cause ignition coil issues, triggering the P0351 code.
What happens if I ignore the P0351 code on my GMC Sierra?
Ignoring this code can lead to ongoing misfires, reduced engine performance, and potential damage to the catalytic converter.
Discuss the causes and fixes for P0351 2014 GMC Sierra OBDII Code
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