AutoCodes – GMC – P2307 GMC

P2307 GMC 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 GMC 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.

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Code Popularity 531

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 31, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2307 GMC Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.

OBDII Code P2307 GMC - Ignition Coil 3 Control Circuit High Voltage - AutoCodes.com — P2307 GMC Code - Ignition Coil 3 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2307 GMC?

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 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 P2307 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 P2307 GMC code?

Need more information on how to fix the P2307 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2307 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P2307 2014 GMC Sierra — Ignition Coil 3 Control Circuit High Voltage
P2307 2015 GMC Sierra — Ignition Coil 3 Control Circuit High Voltage
P2307 2016 GMC Sierra — Ignition Coil 3 Control Circuit High Voltage
P2307 2017 GMC Sierra — Ignition Coil 3 Control Circuit High Voltage
P2307 2018 GMC Sierra — Ignition Coil 3 Control Circuit High Voltage

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2307 GMC Code

1. What are the common symptoms of OBDII code P2307 GMC (Ignition Coil 3 Control Circuit High Voltage)?

- Common symptoms include engine misfires, rough idling, loss of power, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P2307 GMC?

- Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the cause of OBDII code P2307 GMC?

- You can use a scan tool to check for the code, inspect the ignition coil and related components for damage, and perform a continuity test on the wiring and connectors.

4. Can I still drive my vehicle with OBDII code P2307 GMC?

- It is not recommended to drive your vehicle with this code as it can lead to further engine damage and potential safety hazards.

5. How can I repair OBDII code P2307 GMC?

- Repair options may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, and resetting the ECM to clear the code.

6. Are there any preventive maintenance tips to avoid OBDII code P2307 GMC?

- Regularly inspecting and maintaining your ignition system, including the ignition coils, can help prevent issues that may trigger this code.

7. Is it safe to clear the OBDII code P2307 GMC without fixing the underlying issue?

- Clearing the code without fixing the underlying issue is not recommended as it may result in recurring problems and potential long-term damage to your vehicle.

8. Can a DIY enthusiast resolve OBDII code P2307 GMC on their own?

- Depending on your experience and tools, you may be able to diagnose and repair this code yourself, but it is recommended to seek professional help if needed.

9. How much does it typically cost to repair OBDII code P2307 GMC at a mechanic?

- The cost of repairing this code can vary based on the specific cause, but it may range from $100 to $300 or more, including parts and labor.

10. Will OBDII code P2307 GMC cause permanent damage to my vehicle if left unresolved?

- Ignoring this code can potentially lead to more severe engine issues and damage over time, so it is best to address it promptly to avoid further complications.