AutoCodes – GMC – P2599 2014 GMC Sierra

P2599 2014 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 2014 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 271

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 2014 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 2014 GMC Sierra - Turbocharger Boost Control Position Performance High Position - AutoCodes.com — P2599 2014 GMC Sierra Code - Turbocharger Boost Control Position Performance High Position

What does this mean?

What are the Possible Causes of the DTC P2599 2014 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 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 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 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 P2599 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 P2599 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2599 in a 2014 GMC Sierra?

- Common symptoms include reduced engine power, hesitation or stalling during acceleration, and the illumination of the Check Engine Light.

2. What does the OBDII code P2599 indicating "Turbocharger Boost Control Position Performance High Position" mean for a 2014 GMC Sierra?

- This code indicates that there is a performance issue with the turbocharger boost control system, specifically relating to the high position.

3. What are some possible causes of OBDII code P2599 in a 2014 GMC Sierra?

- Potential causes include a faulty turbocharger boost sensor, a malfunctioning turbocharger wastegate, vacuum leaks in the system, or issues with the turbocharger actuator.

4. How can I diagnose the source of OBDII code P2599 in my 2014 GMC Sierra?

- A thorough diagnostic process involving a scan tool to read live data, visual inspection of the turbocharger components, and testing of the boost control system can help pinpoint the root cause.

5. Can driving with OBDII code P2599 in a 2014 GMC Sierra cause further damage to the vehicle?

- Continuing to drive with this code can potentially lead to reduced engine performance, increased fuel consumption, and long-term damage to the turbocharger system.

6. Is it safe to continue driving my 2014 GMC Sierra with the Check Engine Light on due to code P2599?

- It is generally not recommended to drive the vehicle with the Check Engine Light on, as it indicates an issue that should be addressed promptly to prevent further damage.

7. How can I repair OBDII code P2599 in my 2014 GMC Sierra?

- Repairing this code may involve replacing the faulty turbocharger boost sensor, fixing any vacuum leaks, adjusting the turbocharger wastegate, or addressing issues with the turbocharger actuator.

8. Can I reset the Check Engine Light after fixing OBDII code P2599 in my 2014 GMC Sierra?

- Yes, once the underlying issue causing the code has been repaired, the Check Engine Light can be reset using an OBDII scan tool to clear the code and turn off the light.

9. Is it necessary to visit a mechanic for OBDII code P2599 in my 2014 GMC Sierra, or can I fix it myself?

- While some DIY enthusiasts may be able to address simpler causes like vacuum leaks, diagnosing and repairing more complex issues related to the turbocharger system may require professional expertise.

10. How can I prevent OBDII code P2599 from recurring in my 2014 GMC Sierra?

- Regular maintenance, such as checking and replacing air filters, ensuring proper turbocharger system function, and addressing issues promptly, can help prevent the recurrence of this code.