Engine-CodesGMC – P2307 2016 GMC Sierra

P2307 2016 GMC Sierra Code - Ignition Coil 3 Control Circuit High Voltage

Quick Answer

The P2307 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the ignition coil 3 control circuit, specifically detecting high voltage. Common causes include Faulty ignition coil, Damaged wiring or connectors in the control circuit, Corrosion or poor connections in the ignition system. 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 2016 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, Corrosion or poor connections in the ignition system.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P2307 2016 GMC Sierra Description

The P2307 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the ignition coil 3 control circuit, specifically detecting 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 cylinders. When the control circuit for ignition coil 3 registers high voltage, it suggests an issue with the coil's operation, which can lead to misfires, poor engine performance, and potential long-term damage if left unresolved.

OBDII Code P2307 2016 GMC Sierra - Ignition Coil 3 Control Circuit High Voltage
P2307 2016 GMC Sierra Code - Ignition Coil 3 Control Circuit High Voltage

Common Causes of P2307 2016 GMC Sierra

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the control circuit
  3. Corrosion or poor connections in the ignition system
  4. Electrical issues such as a short circuit or voltage spikes
  5. Engine overheating leading to ignition system problems

Symptoms of P2307 2016 GMC Sierra

  1. Engine misfires
  2. Rough idling
  3. Hesitation during acceleration
  4. Decreased fuel efficiency
  5. Difficulty starting the engine

How to Fix P2307 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the high voltage in the ignition coil 3 control circuit using a diagnostic scanner to confirm the P2307 code.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage, corrosion, or loose connections. Replace any faulty components as needed.
  3. Test the ignition coil's resistance and output voltage to ensure it is functioning within the manufacturer's specifications.
  4. Clear the DTC from the vehicle's computer memory after completing the repairs and test-driving the vehicle to verify that the issue has been resolved.

Cost to Fix P2307 2016 GMC Sierra

The typical repair costs for addressing a P2307 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the parts and labor required for the repair. In general, replacing a faulty ignition coil or repairing wiring/connectors may cost between $150 and $300, including parts and labor. However, additional diagnostic time and labor rates at auto repair shops can impact the final cost. It's recommended to consult with a trusted mechanic or dealership to obtain a more accurate estimate based on your location and vehicle's specific needs.

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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 2016 GMC Sierra Code

1. What are common symptoms of OBDII code P2307 in a 2016 GMC Sierra related to Ignition Coil 3 Control Circuit High Voltage?

- Common symptoms include engine misfires, rough idling, decreased fuel efficiency, and illuminated Check Engine light.

2. What are some possible causes of OBDII code P2307 on a 2016 GMC Sierra indicating Ignition Coil 3 Control Circuit High Voltage?

- Potential causes may include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the engine control module.

3. How can I diagnose the issue causing OBDII code P2307 on my 2016 GMC Sierra for Ignition Coil 3 Control Circuit High Voltage?

- Diagnose the problem by inspecting the ignition coil and its connectors, testing the coil with a multimeter, and checking for any damaged wiring or loose connections.

4. Can I continue driving my 2016 GMC Sierra with OBDII code P2307 related to Ignition Coil 3 Control Circuit High Voltage?

- It is not recommended to continue driving with this code as it can lead to further damage to the ignition system and potentially cause more severe issues with the engine.

5. Is it possible to reset the Check Engine light after repairing OBDII code P2307 on a 2016 GMC Sierra for Ignition Coil 3 Control Circuit High Voltage?

- Yes, once the underlying issue causing the code has been fixed, the Check Engine light can be reset using an OBDII scanner or by disconnecting the car's battery for a few minutes.

6. What are some general repair tips for addressing OBDII code P2307 in a 2016 GMC Sierra indicating Ignition Coil 3 Control Circuit High Voltage?

- When repairing this code, ensure to use high-quality replacement parts, follow proper diagnostic procedures, and clear the code after the repair to prevent it from reoccurring.

7. Can a DIY enthusiast fix OBDII code P2307 on a 2016 GMC Sierra related to Ignition Coil 3 Control Circuit High Voltage?

- Depending on the individual's level of automotive knowledge and experience, some DIY enthusiasts may be able to address this code by following repair guides and utilizing appropriate tools.

8. How much does it typically cost to repair OBDII code P2307 on a 2016 GMC Sierra for Ignition Coil 3 Control Circuit High Voltage?

- The cost of repairing this code can vary based on the underlying issue, but it may involve expenses for parts such as an ignition coil, labor costs if professional help is needed, and diagnostic fees.

9. Are there any preventative maintenance tips to avoid encountering OBDII code P2307 in a 2016 GMC Sierra related to Ignition Coil 3 Control Circuit High Voltage?

- Regularly scheduled maintenance, such as checking and replacing ignition components as recommended by the manufacturer, can help prevent issues leading to this code.

10. How urgent is it to address OBDII code P2307 in a 2016 GMC Sierra indicating Ignition Coil 3 Control Circuit High Voltage?

- It is advisable to address this code promptly to prevent potential damage to other engine components and ensure the vehicle operates efficiently and safely.

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