Engine-Codes.com
Engine-Codes – GMC – P216B 2017 GMC Sierra

P216B 2017 GMC Sierra Code - Cylinder 5 Injector High Control Circuit Low Voltage

Quick Answer

The diagnostic trouble code P216B for a 2017 GMC Sierra indicates an issue with the high control circuit voltage of the fuel injector in cylinder 5. Common causes include Faulty fuel injector in cylinder 5, Wiring or connector issues in the injector control circuit, ECM (Engine Control Module) malfunction. 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 2017 GMC Sierra indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector in cylinder 5, Wiring or connector issues in the injector control circuit, ECM (Engine Control Module) malfunction.
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 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P216B 2017 GMC Sierra Description

The diagnostic trouble code P216B for a 2017 GMC Sierra indicates an issue with the high control circuit voltage of the fuel injector in cylinder 5. In modern fuel-injected engines, each cylinder has its own fuel injector that delivers the precise amount of fuel needed for combustion. The control circuit is responsible for regulating the injector's operation, ensuring the correct fuel-air mixture for optimal engine performance.

OBDII Code P216B 2017 GMC Sierra - Cylinder 5 Injector High Control Circuit Low Voltage
P216B 2017 GMC Sierra Code - Cylinder 5 Injector High Control Circuit Low Voltage

Common Causes of P216B 2017 GMC Sierra

  1. Faulty fuel injector in cylinder 5
  2. Wiring or connector issues in the injector control circuit
  3. ECM (Engine Control Module) malfunction
  4. Poor electrical connection or corrosion
  5. Fuel system contamination or blockage

Symptoms of P216B 2017 GMC Sierra

  1. Rough idling or engine misfires
  2. Decreased fuel efficiency
  3. Engine hesitation or stalling
  4. Illumination of the check engine light
  5. Loss of power or acceleration

How to Fix P216B 2017 GMC Sierra

  1. Diagnose the specific cause of the low voltage issue by using a multimeter to test the injector and control circuit.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. Test the ECM for proper operation and reprogram if needed.
  4. Clean or replace the fuel injector in cylinder 5 if it is found to be faulty.
  5. Clear the trouble code from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P216B 2017 GMC Sierra

The cost of repairing a cylinder 5 injector high control circuit low voltage issue can vary depending on the specific cause of the problem. In general, the cost of parts such as a new fuel injector or wiring harness can range from $100 to $500, while labor costs can add another $100 to $300. Overall, the total repair cost for this issue could be between $200 and $800. 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.

Need more information about the P216B 2017 GMC Sierra code?

Need more information on how to fix the P216B 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P216B 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 P216B 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P216B in a 2017 GMC Sierra?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and a noticeable lack of power during acceleration.

2. What could cause the Cylinder 5 Injector High Control Circuit Low Voltage error code in a 2017 GMC Sierra?

- Possible causes of this code may include a faulty fuel injector, a wiring issue in the injector circuit, a poor connection, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the Cylinder 5 Injector High Control Circuit Low Voltage issue in my 2017 GMC Sierra?

- Diagnosing this problem typically involves conducting a thorough inspection of the injector wiring harness, checking the injector for proper operation, and using a scan tool to analyze the ECM data.

4. Can a DIY enthusiast repair the Cylinder 5 Injector High Control Circuit Low Voltage problem in a 2017 GMC Sierra?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, repairing this issue often requires specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

5. What are the potential risks of driving with the OBDII code P216B in a 2017 GMC Sierra?

- Continuing to drive with this code may lead to further engine damage, decreased performance, and a higher risk of other components being affected. It is advisable to address the issue promptly to avoid more significant problems.

6. Is it safe to clear the OBDII code P216B in a 2017 GMC Sierra without fixing the underlying problem?

- Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely resurface. It is essential to fix the problem to prevent potential long-term damage.

7. How much does it typically cost to repair the Cylinder 5 Injector High Control Circuit Low Voltage issue in a 2017 GMC Sierra?

- The cost of repairing this problem can vary depending on the exact cause and the extent of the repairs needed. It is recommended to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

8. Can a faulty spark plug or ignition coil trigger the OBDII code P216B in a 2017 GMC Sierra?

- While a faulty spark plug or ignition coil can cause similar symptoms, they are not typically direct triggers for this specific injector control circuit low voltage code. It is essential to focus on diagnosing the fuel injector and related components.

9. Are there any preventive maintenance tips to avoid encountering the Cylinder 5 Injector High Control Circuit Low Voltage issue in a 2017 GMC Sierra?

- Regularly scheduled maintenance, such as fuel system cleaning, using high-quality fuel, and promptly addressing any engine performance issues, can help prevent injector-related problems like this code from occurring.

10. How long does it take to repair the Cylinder 5 Injector High Control Circuit Low Voltage issue in a 2017 GMC Sierra?

- The repair time can vary depending on the exact cause of the problem and the availability of parts. In general, a skilled mechanic can typically address this issue within a few hours to a day, but it may take longer for more complex cases.

Discuss the causes and fixes for P216B 2017 GMC Sierra OBDII Code

Submit a New Comment

Code P216B 2017 GMC Sierra comments

No comments found for this page.