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Engine-Codes – GMC – P0264 2015 GMC Sierra

P0264 2015 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Quick Answer

The P0264 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. Common causes include Faulty fuel injector for Cylinder 2, Wiring harness issues or shorts in the injector control circuit, Poor electrical connection or corrosion in the circuit. 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
P0264 2015 GMC Sierra indicates Cylinder 2 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector for Cylinder 2, Wiring harness issues or shorts in the injector control circuit, Poor electrical connection or corrosion in the circuit.
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 15, 2024
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Code P0264 2015 GMC Sierra Description

The P0264 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the Cylinder 2 Injector Control Circuit experiencing low voltage. In a fuel-injected engine like the one in the GMC Sierra, each cylinder has its own fuel injector responsible for delivering the precise amount of fuel needed for combustion. The injector control circuit is the electrical system that controls the opening and closing of the fuel injector to regulate fuel flow. When the voltage in the circuit drops below the specified threshold for Cylinder 2, it triggers the P0264 code.

OBDII Code P0264 2015 GMC Sierra - Cylinder 2 Injector Control Circuit Low Voltage
P0264 2015 GMC Sierra Code - Cylinder 2 Injector Control Circuit Low Voltage

Common Causes of P0264 2015 GMC Sierra

  1. Faulty fuel injector for Cylinder 2
  2. Wiring harness issues or shorts in the injector control circuit
  3. Poor electrical connection or corrosion in the circuit
  4. Problems with the Engine Control Module (ECM)
  5. Issues with the fuel system or fuel pressure

Symptoms of P0264 2015 GMC Sierra

  1. Engine misfires or runs rough
  2. Decreased fuel efficiency
  3. Check Engine Light illuminated
  4. Engine hesitation or lack of power
  5. Rough idle or stalling

How to Fix P0264 2015 GMC Sierra

  1. Begin by conducting a visual inspection of the wiring harness and connectors for any signs of damage or corrosion.
  2. Test the fuel injector for Cylinder 2 to determine if it is functioning correctly.
  3. Check the electrical connections in the injector control circuit and repair any loose connections or corrosion.
  4. If necessary, replace the faulty fuel injector or repair any wiring harness issues.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0264 2015 GMC Sierra

The typical repair costs for addressing a P0264 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a fuel injector can cost between $150 to $300, while diagnosing and repairing wiring harness issues or electrical connections may range from $100 to $200. Overall, the total repair cost for this issue could be anywhere from $200 to $500, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0264 2015 GMC Sierra

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

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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 P0264 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P0264 in a 2015 GMC Sierra related to the Cylinder 2 Injector Control Circuit Low Voltage?

- Common symptoms include rough idling, engine misfires, loss of power, and potentially poor fuel efficiency.

2. What are the possible causes of the Cylinder 2 Injector Control Circuit Low Voltage OBDII code (P0264) in a 2015 GMC Sierra?

- Possible causes include a faulty fuel injector, wiring issues, poor electrical connections, or a malfunctioning Engine Control Module (ECM).

3. How can I diagnose the root cause of OBDII code P0264 in my 2015 GMC Sierra?

- To diagnose the issue, you may need to perform a visual inspection of the injector wiring, test the injector's resistance, check for continuity in the circuit, and use a scan tool to monitor injector operation.

4. Can a DIY enthusiast repair the Cylinder 2 Injector Control Circuit Low Voltage issue (P0264) in a 2015 GMC Sierra?

- While some simple tasks like checking for loose connections can be performed by enthusiasts, diagnosing and repairing intricate electrical issues may require professional expertise.

5. Is it safe to continue driving my 2015 GMC Sierra with the OBDII code P0264 related to Cylinder 2 Injector Control Circuit Low Voltage?

- It is not recommended to drive your vehicle with this issue as it can lead to further damage, reduced performance, and potential safety risks.

6. How much does it typically cost to repair the Cylinder 2 Injector Control Circuit Low Voltage problem causing OBDII code P0264 in a 2015 GMC Sierra?

- Repair costs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can a bad fuel injector cause the OBDII code P0264 in a 2015 GMC Sierra?

- Yes, a faulty fuel injector in cylinder 2 can indeed trigger the Cylinder 2 Injector Control Circuit Low Voltage code (P0264) in your GMC Sierra.

8. Are there any preventive measures to avoid encountering the P0264 code in the future in my 2015 GMC Sierra?

- Regular maintenance, such as using quality fuel, keeping up with injector cleanings, and addressing any engine issues promptly, can help prevent the recurrence of the P0264 code.

9. Will resetting the OBDII system clear the P0264 code in a 2015 GMC Sierra?

- Resetting the system may temporarily clear the code, but if the underlying issue causing the Cylinder 2 Injector Control Circuit Low Voltage problem persists, the code is likely to return.

10. How long does it typically take to repair the Cylinder 2 Injector Control Circuit Low Voltage issue and clear the P0264 code in a 2015 GMC Sierra?

- The repair time can vary based on the exact cause of the problem and the availability of parts, but it may take a few hours to a day for a professional mechanic to diagnose and fix the issue.

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