AutoCodes – GMC – P2599 GMC

P2599 GMC 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 GMC 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 2,412

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

What does this mean?

What are the Possible Causes of the DTC P2599 GMC?

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 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 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 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 P2599 GMC code?

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Need Help with the Code?

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Information for Specific GMC Models

P2599 2014 GMC Sierra — Turbocharger Boost Control Position Performance High Position
P2599 2015 GMC Sierra — Turbocharger Boost Control Position Performance High Position
P2599 2016 GMC Sierra — Turbocharger Boost Control Position Performance High Position
P2599 2017 GMC Sierra — Turbocharger Boost Control Position Performance High Position
P2599 2018 GMC Sierra — Turbocharger Boost Control Position Performance High Position

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 GMC Code

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

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

2. What are the potential causes of OBDII code P2599 in a GMC related to turbocharger boost control position performance high position?

- Possible causes include a faulty turbocharger actuator, issues with the turbocharger system, a vacuum leak, or a problem with the boost control solenoid.

3. How can I diagnose OBDII code P2599 in a GMC?

- To diagnose this code, you may need to perform a visual inspection for any obvious issues, check for vacuum leaks, test the turbocharger actuator and boost control solenoid, and use a scan tool to monitor live data.

4. Can OBDII code P2599 in a GMC be fixed without professional help?

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

5. What are some repair tips for fixing OBDII code P2599 in a GMC?

- Repair tips may include cleaning or replacing the turbocharger actuator, checking and repairing any damaged vacuum lines, ensuring proper operation of the boost control solenoid, and resetting the trouble code after repairs are made.

6. Is it safe to continue driving a GMC with OBDII code P2599?

- It is not recommended to continue driving a vehicle with this code as it can lead to further damage to the turbocharger system and potentially compromise the vehicle's performance and fuel efficiency.

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

- Repair costs can vary depending on the underlying cause of the code, but they may range from a few hundred dollars for simpler repairs like fixing a vacuum leak to over a thousand dollars for more complex turbocharger system issues.

8. Will resetting the trouble codes make OBDII code P2599 disappear permanently?

- Resetting the trouble codes may temporarily turn off the Check Engine light, but if the underlying issue causing OBDII code P2599 is not fixed, the code is likely to reappear after driving the vehicle for some time.

9. How important is it to address OBDII code P2599 in a timely manner?

- It is crucial to address this code promptly to prevent further damage to the turbocharger system, ensure optimal engine performance, and maintain the overall reliability of the vehicle.

10. Can OBDII code P2599 in a GMC cause any long-term damage if left untreated?

- Leaving this code untreated can potentially lead to decreased engine efficiency, increased fuel consumption, and even long-term damage to the turbocharger system, resulting in costly repairs.