AutoCodes – GMC – P217B 2016 GMC Sierra

P217B 2016 GMC Sierra Code - Cylinder 7 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 7, Fuel Injector 7 harness is open or shorted, Fuel Injector 7 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: P217B 2016 GMC Sierra indicates Cylinder 7 Injector High Control Circuit Low Voltage.
Common causes: Common causes include Faulty Fuel Injector 7, Fuel Injector 7 harness is open or shorted, Fuel Injector 7 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 315

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 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 P217B 2016 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 P217B 2016 GMC Sierra - Cylinder 7 Injector High Control Circuit Low Voltage - AutoCodes.com — P217B 2016 GMC Sierra Code - Cylinder 7 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P217B 2016 GMC Sierra?

Faulty Fuel Injector 7
Fuel Injector 7 harness is open or shorted
Fuel Injector 7 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P217B 2016 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 P217B 2016 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 P217B 2016 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 P217B 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P217B on a 2016 GMC Sierra?

- Common symptoms include rough idling, misfiring, decreased engine performance, and potentially increased fuel consumption.

2. What are the potential causes of the Cylinder 7 Injector High Control Circuit Low Voltage code on a GMC Sierra?

- Possible causes can include a faulty injector, wiring issues, poor electrical connections, or a problem with the engine control module.

3. How can I diagnose the Cylinder 7 Injector High Control Circuit Low Voltage issue on my 2016 GMC Sierra?

- Diagnose the problem by checking the injector wiring for damage, testing the injector for proper function, and using a scan tool to assess the voltage readings.

4. Can a DIY enthusiast repair the P217B code on a GMC Sierra?

- While some basic troubleshooting can be done by DIYers, resolving this code may require specialized tools and expertise, so professional help is recommended.

5. Is it safe to drive my GMC Sierra with the Cylinder 7 Injector High Control Circuit Low Voltage code?

- It is not advisable to drive your vehicle with this code as it can lead to further engine damage and potentially unsafe driving conditions.

6. How much does it typically cost to repair the Cylinder 7 Injector High Control Circuit Low Voltage issue on a 2016 GMC Sierra?

- Repair costs can vary depending on the exact cause of the problem, but expect to pay anywhere from a few hundred to over a thousand dollars for parts and labor.

7. Are there any preventive measures to avoid encountering the P217B code on a GMC Sierra?

- Regular maintenance, such as checking and replacing fuel injectors as needed, ensuring proper wiring connections, and using quality fuel, can help prevent this code from appearing.

8. Can a bad fuel injector cause the Cylinder 7 Injector High Control Circuit Low Voltage code on a GMC Sierra?

- Yes, a faulty fuel injector can lead to low voltage issues in the control circuit, triggering the P217B trouble code on a GMC Sierra.

9. How urgent is it to address the Cylinder 7 Injector High Control Circuit Low Voltage code on my GMC Sierra?

- It is recommended to address this issue promptly to prevent further damage to the engine and ensure optimal vehicle performance and fuel efficiency.

10. Will the P217B code on a GMC Sierra clear on its own, or does it require manual reset after repairs?

- After repairing the issue causing the code, it may be necessary to clear the code manually using an OBDII scanner to reset the system and turn off the check engine light.