P2307 2018 GMC Sierra Code - Ignition Coil 3 Control Circuit High Voltage
Quick Answer
The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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
- P2307 2018 GMC Sierra indicates Ignition Coil 3 Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Ignition Coil 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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 P2307 2018 GMC Sierra Description
What are the Possible Causes of the DTC P2307 2018 GMC Sierra?
- Faulty Ignition Coil 3
- Ignition Coil 3 harness is open or shorted
- Ignition Coil 3 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2307 2018 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 P2307 2018 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 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.
