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Engine-Codes – GMC – P2310 2018 GMC Sierra

P2310 2018 GMC Sierra Code - Ignition Coil 4 Control Circuit High Voltage

Quick Answer

The P2310 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the ignition coil 4 control circuit experiencing high voltage. Common causes include Faulty ignition coil, Damaged or corroded wiring in the ignition coil circuit, Issues with the 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
P2310 2018 GMC Sierra indicates Ignition Coil 4 Control Circuit High Voltage.
Common causes
Common causes include Faulty ignition coil, Damaged or corroded wiring in the ignition coil circuit, Issues with the 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 11, 2024
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Code P2310 2018 GMC Sierra Description

The P2310 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the ignition coil 4 control circuit experiencing high voltage. In modern vehicles, the ignition coil is responsible for converting the low voltage supplied by the battery into the high voltage needed to ignite the fuel-air mixture in the engine cylinders. Ignition coil 4 refers to the specific coil associated with the fourth cylinder in the engine.

OBDII Code P2310 2018 GMC Sierra - Ignition Coil 4 Control Circuit High Voltage
P2310 2018 GMC Sierra Code - Ignition Coil 4 Control Circuit High Voltage

Common Causes of P2310 2018 GMC Sierra

  1. Faulty ignition coil
  2. Damaged or corroded wiring in the ignition coil circuit
  3. Issues with the engine control module (ECM)
  4. Poor electrical connections
  5. Water or moisture intrusion in the ignition system

Symptoms of P2310 2018 GMC Sierra

  1. Engine misfires
  2. Rough idling
  3. Reduced power and acceleration
  4. Increased fuel consumption
  5. Illumination of the check engine light

How to Fix P2310 2018 GMC Sierra

  1. Diagnose the specific cause of the high voltage in the ignition coil 4 control circuit using a diagnostic scanner and multimeter.
  2. Inspect the ignition coil, wiring, and connections for any visible damage, corrosion, or loose connections.
  3. Test the ignition coil for proper resistance and continuity to determine if it needs to be replaced.
  4. Replace the faulty ignition coil, damaged wiring, or any other components contributing to the high voltage issue.
  5. Clear the diagnostic trouble codes and perform a test drive to ensure that the issue has been resolved.

Cost to Fix P2310 2018 GMC Sierra

The cost of repairing a P2310 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing an ignition coil can cost between $100 to $200 for the part itself. Adding in labor costs, you may expect to pay between $150 to $300 or more for the repair. Keep in mind that additional diagnostic time may be necessary to pinpoint the exact cause of the high voltage issue. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on your vehicle's unique circumstances. Labor rates typically range from $80 to $150 per hour, but can vary based on location and shop rates.

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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 P2310 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P2310 in a 2018 GMC Sierra?

- Common symptoms include rough idling, poor fuel efficiency, engine misfires, and in some cases, the Check Engine light may be illuminated.

2. What does the OBDII code P2310 indicate on a 2018 GMC Sierra?

- The code P2310 indicates a problem with the ignition coil 4 control circuit showing high voltage.

3. What are the possible causes of OBDII code P2310 in a 2018 GMC Sierra?

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

4. How can I diagnose the OBDII code P2310 in my 2018 GMC Sierra?

- Diagnosing the code may involve visually inspecting the ignition coil and its connections, checking for damaged wiring, using a multimeter to test the ignition coil, and scanning the ECM for any related trouble codes.

5. Can I continue driving my 2018 GMC Sierra with OBDII code P2310?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the engine and emission control systems.

6. How can I repair OBDII code P2310 in my 2018 GMC Sierra?

- Repair may involve replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, resetting the ECM, and ensuring proper spark plug operation.

7. Is it necessary to clear the OBDII code P2310 after repairing the issue in a 2018 GMC Sierra?

- Yes, it is important to clear the code after completing the repairs to reset the Check Engine light and ensure proper monitoring of the system.

8. Can a DIY enthusiast fix the OBDII code P2310 in a 2018 GMC Sierra?

- Depending on their skill level and experience, a DIY enthusiast may be able to troubleshoot and repair this code by following diagnostic procedures and using the right tools.

9. How much does it cost to repair OBDII code P2310 in a 2018 GMC Sierra?

- The cost of repair can vary depending on the cause of the code, the parts needed, and whether you do the repairs yourself or take it to a mechanic. Costs can range from relatively inexpensive for DIY fixes to more expensive for professional repairs.

10. How can I prevent OBDII code P2310 from occurring in my 2018 GMC Sierra in the future?

- Regular maintenance, such as checking and replacing spark plugs and ignition coils at recommended intervals, inspecting wiring for damage, and promptly addressing any engine performance issues, can help prevent the recurrence of this code.

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