P0351 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P0351 GMC?
- 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 GMC?
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 GMC 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 GMC code?
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Information for Specific GMC Models
- P0351 2014 GMC Sierra — Ignition Coil 1 Control Circuit
- P0351 2015 GMC Sierra — Ignition Coil 1 Control Circuit
- P0351 2016 GMC Sierra — Ignition Coil 1 Control Circuit
- P0351 2017 GMC Sierra — Ignition Coil 1 Control Circuit
- P0351 2018 GMC Sierra — Ignition Coil 1 Control Circuit
Frequently Asked Questions about P0351 GMC Code
1. What are the common symptoms of OBDII code P0351 in a GMC related to Ignition Coil 1 Control Circuit?
- Common symptoms include engine misfires, rough idling, loss of power, and illuminated check engine light.
2. What are the possible causes of OBDII code P0351 in a GMC?
- Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).
3. How can I diagnose the source of OBDII code P0351 in my GMC?
- You can use a scan tool to retrieve the trouble codes and perform a visual inspection of the ignition coil and its wiring. Additionally, testing the ignition coil and related components using a multimeter can help pinpoint the issue.
4. Can a DIYer repair OBDII code P0351 in a GMC related to Ignition Coil 1 Control Circuit?
- Yes, if you have the necessary tools and knowledge, you can replace the faulty ignition coil, repair damaged wiring, or address any other identified issues causing the code.
5. Are there any tips for preventing OBDII code P0351 in a GMC?
- Regularly maintaining your vehicle, including inspecting and replacing ignition system components at recommended intervals, can help prevent issues that lead to this code.
6. Will driving with OBDII code P0351 in a GMC cause further damage?
- Continuing to drive with this code can potentially lead to more severe issues, such as permanent damage to the catalytic converter or other engine components. It's best to address the problem promptly.
7. How much does it typically cost to repair OBDII code P0351 in a GMC?
- The cost of repair can vary depending on the underlying cause, but it may range from $100 to $300 for parts and labor if a single ignition coil replacement is needed.
8. Can weather conditions affect the occurrence of OBDII code P0351 in a GMC?
- Extreme weather conditions, such as excessive heat or moisture, can sometimes exacerbate ignition system issues and trigger the code. Ensuring proper insulation and protection of components can help prevent weather-related problems.
9. Are there any recalls related to OBDII code P0351 in certain GMC models?
- It's recommended to check with your local GMC dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls related to this code for your specific vehicle.
10. How soon should I address OBDII code P0351 in my GMC to prevent further complications?
- It's advisable to address the issue as soon as possible to prevent potential damage to other engine components and ensure the vehicle operates efficiently.
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