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Engine-Codes – GMC – P216B 2014 GMC Sierra

P216B 2014 GMC Sierra Code - Cylinder 5 Injector High Control Circuit Low Voltage

Quick Answer

The diagnostic trouble code P216B for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 5 Injector High Control Circuit Low Voltage. Common causes include Faulty fuel injector in cylinder 5, Wiring issues in the control circuit for the fuel injector, Poor electrical connection to the fuel injector. 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
P216B 2014 GMC Sierra indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector in cylinder 5, Wiring issues in the control circuit for the fuel injector, Poor electrical connection to the fuel injector.
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 14, 2024
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Code P216B 2014 GMC Sierra Description

The diagnostic trouble code P216B for a 2014 GMC Sierra specifically refers to an issue with the Cylinder 5 Injector High Control Circuit Low Voltage. This code indicates that there is a problem with the fuel injector in cylinder 5 of the engine. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for optimal performance. When the control circuit for the fuel injector in cylinder 5 is experiencing low voltage, it can lead to a variety of performance issues in the vehicle.

OBDII Code P216B 2014 GMC Sierra - Cylinder 5 Injector High Control Circuit Low Voltage
P216B 2014 GMC Sierra Code - Cylinder 5 Injector High Control Circuit Low Voltage

Common Causes of P216B 2014 GMC Sierra

  1. Faulty fuel injector in cylinder 5
  2. Wiring issues in the control circuit for the fuel injector
  3. Poor electrical connection to the fuel injector
  4. Engine control module (ECM) malfunction
  5. Corrosion or damage to the fuel injector connector

Symptoms of P216B 2014 GMC Sierra

  1. Rough idling
  2. Engine hesitation
  3. Decreased engine performance
  4. Reduced fuel efficiency
  5. Increased emissions output

How to Fix P216B 2014 GMC Sierra

  1. Begin by conducting a visual inspection of the wiring and connectors related to the fuel injector in cylinder 5. Look for any signs of damage, corrosion, or loose connections.
  2. Use a multimeter to test the voltage at the fuel injector in cylinder 5. Ensure that the voltage is within the manufacturer's specified range.
  3. If the voltage is low, check the wiring harness for any breaks or shorts. Repair or replace any damaged wiring as needed.
  4. Test the fuel injector itself to ensure it is functioning properly. If the injector is faulty, replace it with a new one.
  5. Clear the diagnostic trouble codes from the engine control module and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P216B 2014 GMC Sierra

The typical repair costs for addressing the P216B code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a fuel injector can range from $150 to $300, while the cost of labor can range from $80 to $150 per hour. Additional costs may be incurred if wiring repairs or other components need to be replaced. It is advisable to consult with a qualified mechanic or auto repair shop to get a more accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary based on location, vehicle make and model, and the type of engine.

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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 P216B 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P216B in a 2014 GMC Sierra with the description "Cylinder 5 Injector High Control Circuit Low Voltage"?

- Common symptoms include rough idling, misfires in cylinder 5, decreased engine performance, and potentially decreased fuel efficiency.

2. What are the possible causes of OBDII code P216B in a 2014 GMC Sierra?

- The code P216B might be triggered by issues such as a faulty injector in cylinder 5, a wiring issue in the injector circuit, a poor electrical connection, or an ECU (engine control unit) problem.

3. How can I diagnose the OBDII code P216B in my 2014 GMC Sierra?

- To diagnose the code P216B, you can use an OBDII scanner to retrieve the code and then visually inspect the injector and its wiring for any visible damage or loose connections.

4. Can I continue driving my 2014 GMC Sierra with OBDII code P216B?

- It is not recommended to continue driving with the code P216B present, as it can lead to further engine damage and potentially worsen the issue over time.

5. How can I repair OBDII code P216B in my 2014 GMC Sierra?

- Repairing OBDII code P216B may involve replacing the faulty injector in cylinder 5, repairing or replacing damaged wiring, ensuring proper electrical connections, and clearing the code with an OBDII scanner.

6. Is it possible to prevent OBDII code P216B from occurring in my 2014 GMC Sierra?

- While some issues leading to code P216B may be unavoidable, regular maintenance, such as timely injector inspections and using quality fuel, can help prevent injector-related problems.

7. How serious is OBDII code P216B in a 2014 GMC Sierra?

- OBDII code P216B should be addressed promptly to avoid potential engine performance issues, increased emissions, and the risk of further damage to the injector or engine components.

8. Can a DIY enthusiast fix OBDII code P216B in a 2014 GMC Sierra?

- Depending on the DIYer's skill level and access to tools, diagnosing and repairing OBDII code P216B might be possible, especially for tasks like inspecting wiring and connections. However, replacing the injector may require professional expertise.

9. How long does it typically take to repair OBDII code P216B in a 2014 GMC Sierra?

- The repair time for OBDII code P216B can vary based on the specific issue, the availability of parts, and the repairer's expertise. It could range from a few hours to a full day in some cases.

10. Will resetting the OBDII code P216B in my 2014 GMC Sierra make it go away permanently?

- Resetting the code with an OBDII scanner may clear it temporarily, but if the underlying issue causing code P216B persists, the code is likely to reappear until the problem is properly diagnosed and repaired.

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