AutoCodes – GMC – P2315 2017 GMC Sierra

P2315 2017 GMC Sierra Code - Ignition Coil 6 Control Circuit Low Voltage

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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
P2315 2017 GMC Sierra indicates Ignition Coil 6 Control Circuit Low Voltage.
Common causes
Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 150
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P2315 2017 GMC Sierra 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 P2315 2017 GMC Sierra - Ignition Coil 6 Control Circuit Low Voltage - AutoCodes.com
P2315 2017 GMC Sierra Code - Ignition Coil 6 Control Circuit Low Voltage

What are the Possible Causes of the DTC P2315 2017 GMC Sierra?

  • Faulty Ignition Coil 6
  • Ignition Coil 6 harness is open or shorted
  • Ignition Coil 6 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2315 2017 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 P2315 2017 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 P2315 2017 GMC Sierra code?

Need more information on how to fix the P2315 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2315 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 2017 GMC Sierra Code

What does the OBDII code P2315 mean for a 2017 GMC Sierra?

P2315 indicates a low voltage issue in the ignition coil control circuit for cylinder 6, meaning the PCM detects an abnormality in this circuit.

What are the symptoms of code P2315 in a 2017 GMC Sierra?

Common symptoms include engine misfires, rough idling, reduced fuel efficiency, hesitation during acceleration, and the check engine light turning on.

What causes the P2315 code to appear on a GMC Sierra?

Potential causes include a faulty ignition coil, damaged wiring or connectors in the coil circuit, a failing PCM, or corroded electrical connections.

Can I drive my 2017 GMC Sierra with the P2315 code?

Driving with this code is not recommended as it can lead to poor performance, increased emissions, and potential damage to the catalytic converter.

How do I diagnose the P2315 code on a GMC Sierra?

Start by inspecting the wiring and connectors for the cylinder 6 ignition coil, test the ignition coil itself, and use a multimeter to check for proper voltage and ground signals.

What tools are needed to fix the P2315 code?

You may need an OBDII scanner, a multimeter, basic hand tools, and potentially replacement parts like an ignition coil or wiring components.

How do I fix the P2315 code on my 2017 GMC Sierra?

Repairs may include replacing the ignition coil for cylinder 6, repairing or replacing damaged wiring or connectors, cleaning corroded connections, or reprogramming/repairing the PCM if necessary.

How much does it cost to repair the P2315 code?

Repair costs vary but typically range from $100 to $300 for ignition coil replacement, with labor and diagnostics potentially adding to the cost.

Can a bad spark plug cause the P2315 code?

While unlikely, a bad spark plug can contribute to ignition issues. It's best to inspect the spark plug for cylinder 6 when diagnosing this code.

Will clearing the code fix the P2315 issue permanently?

No, clearing the code without addressing the underlying issue will only temporarily turn off the check engine light, and the code will return.

Discuss the causes and fixes for P2315 2017 GMC Sierra OBDII Code

Code P2315 2017 GMC Sierra comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play