P2315 2018 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 2018 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.
Code P2315 2018 GMC Sierra Description
What are the Possible Causes of the DTC P2315 2018 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 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 P2315 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 P2315 2018 GMC Sierra code?
Need more information on how to fix the P2315 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2315 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2315 2018 GMC Sierra Code
1. What does the OBDII code P2315 mean on a 2018 GMC Sierra?
P2315 indicates a low voltage condition in the control circuit for ignition coil 6, meaning the engine control module (ECM) is detecting an issue with the electrical signal to that specific coil.
2. What are the common symptoms of code P2315?
Symptoms include engine misfires, rough idling, poor acceleration, reduced fuel efficiency, and the check engine light illuminating.
3. What causes the P2315 code to appear?
Common causes include a faulty ignition coil 6, damaged or corroded wiring, a bad spark plug, or a malfunctioning ECM.
4. Can I drive my 2018 GMC Sierra with a P2315 code?
Driving with this code is not recommended as it can lead to further engine damage, increased emissions, and poor performance.
5. How do I diagnose the P2315 code?
Start by inspecting ignition coil 6, its wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
6. How do I fix the P2315 code on my GMC Sierra?
Repairs may involve replacing ignition coil 6, repairing or replacing damaged wiring, cleaning corroded connectors, or updating/replacing the ECM if necessary.
7. How much does it cost to fix a P2315 code?
The repair cost varies, but replacing an ignition coil typically ranges from $50 to $150 for parts, plus labor if done by a professional.
8. Can a bad spark plug cause a P2315 code?
Yes, a faulty spark plug can cause extra strain on the ignition coil, potentially triggering the P2315 code.
9. Will clearing the code with a scanner fix the issue?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be repaired to prevent the code from returning.
10. How can I prevent the P2315 code from recurring?
Regular maintenance, including inspecting ignition components and replacing spark plugs at recommended intervals, can help prevent this code.
Discuss the causes and fixes for P2315 2018 GMC Sierra OBDII Code
Code P2315 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.
