P2307 2018 GMC Sierra Code - Ignition Coil 3 Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P2307 in a 2018 GMC Sierra indicates an issue with the ignition coil 3 control circuit experiencing high voltage. Common causes include Faulty ignition coil, Damaged wiring or connectors in the control circuit, Malfunctioning engine control module. 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
- P2307 2018 GMC Sierra indicates Ignition Coil 3 Control Circuit High Voltage.
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the control circuit, Malfunctioning engine control module.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2307 2018 GMC Sierra Description
The diagnostic trouble code P2307 in a 2018 GMC Sierra indicates an issue with the ignition coil 3 control circuit experiencing high voltage. 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 engine's cylinders. When the control circuit for ignition coil 3 detects high voltage, it can lead to various performance issues in the vehicle.
Common Causes of P2307 2018 GMC Sierra
- Faulty ignition coil
- Damaged wiring or connectors in the control circuit
- Malfunctioning engine control module
- Battery or charging system issues
- Environmental factors such as moisture or corrosion
Symptoms of P2307 2018 GMC Sierra
- Engine misfires
- Rough idling or vibrations
- Decreased fuel efficiency
- Stalling or difficulty starting the engine
- Loss of power or acceleration
How to Fix P2307 2018 GMC Sierra
- Begin by diagnosing the specific cause of the high voltage in the ignition coil 3 control circuit using a diagnostic scanner and multimeter.
- Inspect the ignition coil, wiring, and connectors for any visible damage or wear. Replace any components that show signs of damage.
- Test the engine control module to ensure it is functioning correctly. Replace if necessary.
- Check the battery and charging system to ensure they are providing the correct voltage to the ignition system.
- Clear the diagnostic trouble code from the vehicle's computer after completing the repairs and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P2307 2018 GMC Sierra
The typical repair costs for addressing the P2307 code in a 2018 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing an ignition coil can range from $100 to $300, while the cost of replacing an engine control module can be higher, ranging from $200 to $500 or more. Labor costs at auto repair shops typically range between $80 and $150 per hour. It is advisable to check with local repair shops for more accurate estimates based on your location and the specific requirements of your vehicle.
Need more information about the P2307 2018 GMC Sierra code?
Need more information on how to fix the P2307 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2307 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2307 2018 GMC Sierra Code
1. What does the OBDII code P2307 mean on a 2018 GMC Sierra?
P2307 indicates a high voltage condition in the ignition coil 3 control circuit, which could disrupt proper engine performance.
2. What are the common symptoms of code P2307 in a 2018 GMC Sierra?
Symptoms include engine misfires, rough idling, reduced power, poor fuel efficiency, and possibly an illuminated check engine light.
3. What causes the P2307 code on a 2018 GMC Sierra?
Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil 3 circuit, or a malfunctioning Powertrain Control Module (PCM).
4. Can I drive my 2018 GMC Sierra with the P2307 code?
Driving with this code is not recommended, as it can lead to engine misfires, reduced performance, and further damage to the ignition system or catalytic converter.
5. How do I troubleshoot the P2307 code in a 2018 GMC Sierra?
Start by inspecting the ignition coil 3 and its wiring for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
6. Does the P2307 code mean I need to replace the ignition coil?
Not necessarily. While a faulty ignition coil is a common cause, the issue could also stem from wiring damage or a PCM problem. Proper diagnosis is essential.
7. How much does it cost to fix the P2307 code on a 2018 GMC Sierra?
Repair costs vary but typically range from $100 to $350, depending on whether the issue is with the ignition coil, wiring, or PCM.
8. Can a bad spark plug cause the P2307 code?
A bad spark plug is unlikely to directly cause this code, but it can contribute to misfires if the ignition coil or circuit is already compromised.
9. How can I prevent the P2307 code from occurring again?
Regular maintenance, including inspecting ignition coils, wiring, and spark plugs, can help prevent this code from recurring.
10. Will clearing the P2307 code fix the problem on my 2018 GMC Sierra?
Clearing the code will turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for P2307 2018 GMC Sierra OBDII Code
Code P2307 2018 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.