AutoCodes – GMC – P216F GMC

P216F GMC Code - Cylinder 6 Injector High Control Circuit High 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 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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: P216F GMC indicates Cylinder 6 Injector High Control Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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 903

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P216F GMC 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 voltage for greater than 2 s.

OBDII Code P216F GMC - Cylinder 6 Injector High Control Circuit High Voltage - AutoCodes.com — P216F GMC Code - Cylinder 6 Injector High Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P216F GMC?

Faulty Fuel Injector 6
Fuel Injector 6 harness is open or shorted
Fuel Injector 6 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P216F GMC?

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 P216F GMC 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 P216F GMC code?

Need more information on how to fix the P216F GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific GMC Models

P216F 2014 GMC Sierra — Cylinder 6 Injector High Control Circuit High Voltage
P216F 2015 GMC Sierra — Cylinder 6 Injector High Control Circuit High Voltage
P216F 2016 GMC Sierra — Cylinder 6 Injector High Control Circuit High Voltage
P216F 2017 GMC Sierra — Cylinder 6 Injector High Control Circuit High Voltage
P216F 2018 GMC Sierra — Cylinder 6 Injector High Control Circuit High Voltage

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 P216F GMC Code

1. What are the common symptoms of OBDII code P216F GMC?

The common symptoms of code P216F include rough idling, decreased engine performance, and potential engine misfires.

2. What is the typical cause of OBDII code P216F GMC?

The typical cause of code P216F is a high voltage condition in the control circuit of the injector for cylinder 6, often due to a faulty injector or wiring issue.

3. How can I diagnose the root cause of OBDII code P216F GMC?

To diagnose code P216F, you can use a diagnostic scanner to check for the specific cylinder 6 injector high voltage issue, inspect the wiring for any damage, and test the injector for proper function.

4. Can a dirty fuel injector cause OBDII code P216F GMC?

Yes, a dirty or clogged fuel injector for cylinder 6 can potentially cause a high voltage condition and trigger code P216F.

5. What are some repair tips for addressing OBDII code P216F GMC?

Repair tips for code P216F may include cleaning or replacing the fuel injector for cylinder 6, checking and repairing any damaged wiring, and clearing the code to see if the issue persists.

6. Will driving with OBDII code P216F GMC cause further damage to the vehicle?

Continuing to drive with code P216F may lead to poor engine performance and potential damage to the catalytic converter, so it is recommended to address the issue promptly.

7. Can a DIY enthusiast fix OBDII code P216F GMC at home?

Depending on your skill level and access to tools, you may be able to address code P216F at home by inspecting the injector and wiring, cleaning the injector, or replacing any damaged components.

8. Is it safe to ignore OBDII code P216F GMC if my vehicle seems to be running fine?

While the vehicle may seem to run fine initially, ignoring code P216F can lead to long-term engine issues and decreased fuel efficiency, so it is best to address the problem promptly.

9. How much does it typically cost to repair OBDII code P216F GMC at a mechanic or dealership?

The cost to repair code P216F can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts costs for a new injector or wiring repair, and labor charges.

10. Can resetting the OBDII system clear code P216F GMC temporarily?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code P216F is not resolved, the code is likely to return after driving the vehicle again.