AutoCodes – GMC – P2599 2015 GMC Sierra

P2599 2015 GMC Sierra Code - Turbocharger Boost Control Position Performance High Position

Quick Answer

A smart turbocharger vane position actuator incorporates a brushless motor and is mounted on top of the turbocharger. 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: P2599 2015 GMC Sierra indicates Turbocharger Boost Control Position Performance High Position.
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 222

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 May 13, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2599 2015 GMC Sierra Description

A smart turbocharger vane position actuator incorporates a brushless motor and is mounted on top of the turbocharger. It is connected to the vanes by a linkage rod. The vanes are used to vary the amount of boost pressure and can control the boost pressure independent of engine speed. The vanes mount to a unison ring which is rotated to change the vane angle. The Engine Control Module (ECM) communicates with the actuator via the Controller Area Network (CAN) bus. The ECM will vary the vane angle which adjusts the boost dependent on the load requirements of the engine. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the actual turbocharger vane position is 25% greater than the turbocharger learned closed vane position, for greater than 10 s after P0046 sets.

OBDII Code P2599 2015 GMC Sierra - Turbocharger Boost Control Position Performance High Position - AutoCodes.com — P2599 2015 GMC Sierra Code - Turbocharger Boost Control Position Performance High Position

What does this mean?

What are the Possible Causes of the DTC P2599 2015 GMC Sierra?

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

How to Fix the DTC P2599 2015 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 does this mean?

Code Tech Notes

If any service has been performed on the turbocharger or on the turbocharger components, a turbocharger relearn must be performed.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2599 2015 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 P2599 2015 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 P2599 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P2599 in a 2015 GMC Sierra?

- Common symptoms include reduced engine power, hesitation during acceleration, and the Check Engine light illuminating on the dashboard.

2. What does the OBDII code P2599 in a 2015 GMC Sierra indicate?

- The code P2599 indicates a Turbocharger Boost Control Position Performance High Position issue in the vehicle's turbocharger system.

3. What are the potential causes of OBDII code P2599 in a 2015 GMC Sierra?

- Possible causes include a faulty turbocharger wastegate, a malfunctioning turbo boost control sensor, a boost control solenoid problem, or issues with the turbocharger control module.

4. How can I diagnose the OBDII code P2599 in my 2015 GMC Sierra?

- Diagnosis typically involves using a scan tool to retrieve the trouble code, checking the turbocharger system components for any visible damage or leaks, and testing the sensors and actuators related to turbo boost control.

5. Can I still drive my 2015 GMC Sierra with the OBDII code P2599 active?

- It is not recommended to drive the vehicle with the code P2599 active, as it may lead to further damage to the turbocharger system and potentially cause engine performance issues.

6. How can I repair OBDII code P2599 in my 2015 GMC Sierra?

- Repairs may involve replacing the faulty turbocharger wastegate, fixing any damaged wiring or connectors in the turbo boost control system, or recalibrating the turbocharger control module.

7. Is it possible to clear the OBDII code P2599 in a 2015 GMC Sierra without fixing the underlying issue?

- Clearing the code without addressing the root cause is not recommended, as the issue may persist and trigger the Check Engine light again, leading to potential long-term problems.

8. Are there any maintenance tips to prevent OBDII code P2599 in a 2015 GMC Sierra?

- Regularly servicing the turbocharger system, checking for leaks or loose connections, and using high-quality engine oil can help prevent issues that may trigger the P2599 trouble code.

9. Can a DIY enthusiast fix OBDII code P2599 in a 2015 GMC Sierra?

- Depending on their level of experience and access to tools, a DIY enthusiast may be able to address simpler causes of the P2599 code, but complex issues may require professional assistance.

10. How much does it typically cost to repair OBDII code P2599 in a 2015 GMC Sierra?

- The cost of repairs for the P2599 code can vary depending on the specific cause of the issue, but it may range from a few hundred dollars for minor fixes to over a thousand dollars for more extensive repairs or part replacements.