AutoCodes – GMC – P00AF 2017 GMC Sierra

P00AF 2017 GMC Sierra Code - Turbocharger Boost Control Module Performance

Quick Answer

The smart variable geometry turbocharger actuator detects internal faults including pattern errors, motor overcurrent errors, and checksum errors. Common causes include Faulty Turbocharger Vane Position Actuator, Turbocharger Vane Position Actuator harness is open or shorted, Turbocharger Vane Position Actuator 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: P00AF 2017 GMC Sierra indicates Turbocharger Boost Control Module Performance.
Common causes: Common causes include Faulty Turbocharger Vane Position Actuator, Turbocharger Vane Position Actuator harness is open or shorted, Turbocharger Vane Position Actuator 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 209

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 Jul 15, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P00AF 2017 GMC Sierra Description

The smart variable geometry turbocharger actuator detects internal faults including pattern errors, motor overcurrent errors, and checksum errors. The Diagnostic Trouble Code (DTC) will be set when the smart variable geometry turbo actuator has detected an internal malfunction for greater than 5 s.

OBDII Code P00AF 2017 GMC Sierra - Turbocharger Boost Control Module Performance - AutoCodes.com — P00AF 2017 GMC Sierra Code - Turbocharger Boost Control Module Performance

What does this mean?

What are the Possible Causes of the DTC P00AF 2017 GMC Sierra?

Faulty Turbocharger Vane Position Actuator
Turbocharger Vane Position Actuator harness is open or shorted
Turbocharger Vane Position Actuator circuit poor electrical connection

How to Fix the DTC P00AF 2017 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 P00AF 2017 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 P00AF 2017 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 P00AF 2017 GMC Sierra Code

1. What does the OBDII code P00AF mean on a 2017 GMC Sierra?

P00AF indicates a performance issue with the Turbocharger Boost Control Module, which is responsible for managing and regulating boost pressure from the turbocharger.

2. What are the common symptoms of code P00AF in a 2017 GMC Sierra?

Symptoms may include reduced engine power, poor acceleration, decreased fuel efficiency, excessive smoke from the exhaust, or the Check Engine Light being illuminated.

3. What causes code P00AF on a 2017 GMC Sierra?

Common causes include a faulty turbocharger boost control module, damaged or stuck turbocharger vanes, wiring issues, a malfunctioning turbocharger actuator, or vacuum/pressure leaks in the turbo system.

4. Can I drive my 2017 GMC Sierra with code P00AF?

While you may be able to drive the vehicle, it is not recommended, as the engine may experience reduced performance, and continued driving could lead to further damage to the turbocharger or related components.

5. How do I fix code P00AF on a 2017 GMC Sierra?

Repairs typically include inspecting and replacing the turbocharger boost control module, repairing wiring or connector issues, cleaning or repairing stuck turbo vanes, or replacing a faulty turbo actuator.

6. How do I diagnose the P00AF code on a 2017 GMC Sierra?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the turbocharger system, checking for wiring or connector damage, and testing the turbo actuator and boost control module for functionality.

7. Can a dirty air filter cause the P00AF code on a 2017 GMC Sierra?

While a dirty air filter is unlikely to directly trigger P00AF, it can contribute to reduced airflow, which may exacerbate turbo-related issues. Itâ€™s good practice to ensure the air filter is clean.

8. How much does it cost to repair the P00AF code on a 2017 GMC Sierra?

Repair costs can vary widely, ranging from $100 for wiring repairs to over $1,000 if the turbocharger or boost control module needs replacement.

9. Is the P00AF code related to the turbocharger itself?

Yes, the code often points to issues within the turbocharger system, such as the boost control module, actuator, or vanes, but it does not always mean the entire turbocharger is faulty.

10. Can a software update fix the P00AF code on a 2017 GMC Sierra?

In some cases, a reflash or update of the engine control module (ECM) software may resolve the issue if it was caused by a calibration or communication problem. However, mechanical components should be inspected first.