AutoCodes – GMC – P216B 2014 GMC Sierra

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

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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: P216B 2014 GMC Sierra indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes: Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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.

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Code Popularity 213

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P216B 2014 GMC Sierra Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector high voltage supply circuit is shorted to ground for greater than 2 s.

OBDII Code P216B 2014 GMC Sierra - Cylinder 5 Injector High Control Circuit Low Voltage - AutoCodes.com — P216B 2014 GMC Sierra Code - Cylinder 5 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P216B 2014 GMC Sierra?

Faulty Fuel Injector 5
Fuel Injector 5 harness is open or shorted
Fuel Injector 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P216B 2014 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 P216B 2014 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 P216B 2014 GMC Sierra code?

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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.