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Engine-Codes – GMC – P2315 2016 GMC Sierra

P2315 2016 GMC Sierra Code - Ignition Coil 6 Control Circuit Low Voltage

Quick Answer

The diagnostic trouble code P2315 for a 2016 GMC Sierra indicates a problem with the Ignition Coil 6 Control Circuit, specifically detecting low voltage. Common causes include Faulty ignition coil for cylinder 6, Damaged wiring or connectors in the ignition coil control circuit, Malfunctioning engine control module (ECM). 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
P2315 2016 GMC Sierra indicates Ignition Coil 6 Control Circuit Low Voltage.
Common causes
Common causes include Faulty ignition coil for cylinder 6, Damaged wiring or connectors in the ignition coil control circuit, Malfunctioning engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 30, 2024
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Code P2315 2016 GMC Sierra Description

The diagnostic trouble code P2315 for a 2016 GMC Sierra indicates a problem with the Ignition Coil 6 Control Circuit, specifically detecting low voltage. The ignition coil is a crucial component of the vehicle's 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 6 is experiencing low voltage, it can lead to misfires, rough idling, poor fuel efficiency, and overall decreased engine performance.

OBDII Code P2315 2016 GMC Sierra - Ignition Coil 6 Control Circuit Low Voltage
P2315 2016 GMC Sierra Code - Ignition Coil 6 Control Circuit Low Voltage

Common Causes of P2315 2016 GMC Sierra

  1. Faulty ignition coil for cylinder 6.
  2. Damaged wiring or connectors in the ignition coil control circuit.
  3. Malfunctioning engine control module (ECM).
  4. Issues with the battery or charging system.
  5. Environmental factors such as moisture or corrosion affecting electrical connections.

Symptoms of P2315 2016 GMC Sierra

  1. Engine misfires or hesitation during acceleration.
  2. Rough idling or stalling.
  3. Decreased fuel efficiency.
  4. Illumination of the check engine light.
  5. Loss of power or performance issues.

How to Fix P2315 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the low voltage in the ignition coil control circuit using a scan tool to pinpoint the issue.
  2. Inspect the ignition coil for cylinder 6 to determine if it is faulty and needs replacement.
  3. Check the wiring and connectors in the control circuit for any damage or corrosion, repairing or replacing as necessary.
  4. Test the engine control module (ECM) to ensure it is functioning correctly and reprogram if needed.
  5. Verify the battery and charging system are operating within specifications to prevent future issues with voltage supply.

Cost to Fix P2315 2016 GMC Sierra

The typical repair costs for addressing the P2315 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, replacing an ignition coil can cost between $100 to $300, while diagnostic testing and labor may range from $80 to $150 per hour. Additional costs for parts and any necessary repairs to wiring or connectors should be factored into the overall estimate. It's recommended to consult with a qualified mechanic or auto repair shop to obtain a more accurate cost assessment based on the individual circumstances of the vehicle.

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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 P2315 2016 GMC Sierra Code

1. What are common symptoms of OBDII code P2315 in a 2016 GMC Sierra related to Ignition Coil 6 Control Circuit Low 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 P2315 in a 2016 GMC Sierra indicating Ignition Coil 6 Control Circuit Low Voltage?

- Potential causes can 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 issue causing OBDII code P2315 in my 2016 GMC Sierra related to Ignition Coil 6 Control Circuit Low Voltage?

- Diagnosis typically involves visually inspecting the ignition coil and its connections, testing the coil for proper functioning, and checking the wiring for any damage or loose connections.

4. Can driving with OBDII code P2315 in a 2016 GMC Sierra indicating Ignition Coil 6 Control Circuit Low Voltage cause further damage?

- Continuing to drive with this issue can potentially lead to increased fuel consumption, further engine damage, or catalytic converter damage, so it's best to address the problem promptly.

5. What are the recommended repair options for fixing OBDII code P2315 in a 2016 GMC Sierra related to Ignition Coil 6 Control Circuit Low Voltage?

- Repair options may include replacing the faulty ignition coil, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

6. Is it possible to reset the Check Engine Light after resolving OBDII code P2315 in my 2016 GMC Sierra?

- Yes, after repairing the issue causing the code, you can reset the Check Engine Light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

7. Are there any preventive maintenance steps I can take to avoid OBDII code P2315 in my 2016 GMC Sierra related to Ignition Coil 6 Control Circuit Low Voltage?

- Regularly inspecting the ignition system components, following recommended maintenance schedules, and addressing any engine performance issues promptly can help prevent this code from occurring.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P2315 in a 2016 GMC Sierra indicating Ignition Coil 6 Control Circuit Low Voltage?

- Depending on the specific cause, a DIY enthusiast may be able to address this code by replacing the ignition coil or checking for wiring issues, but more complex diagnostics may require professional assistance.

9. Will fixing OBDII code P2315 in a 2016 GMC Sierra improve the vehicle's performance and fuel efficiency?

- Yes, resolving this code should help restore proper engine performance, reduce misfires, improve fuel efficiency, and prevent potential damage to other engine components.

10. How long does it typically take to repair OBDII code P2315 in a 2016 GMC Sierra related to Ignition Coil 6 Control Circuit Low Voltage?

- The repair time can vary depending on the exact cause and complexity of the issue, but it may range from 30 minutes for a simple ignition coil replacement to a few hours for more extensive diagnostics and repairs.

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