AutoCodes – GMC – P2599 2018 GMC Sierra

P2599 2018 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 2018 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 177

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 2018 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 2018 GMC Sierra - Turbocharger Boost Control Position Performance High Position - AutoCodes.com — P2599 2018 GMC Sierra Code - Turbocharger Boost Control Position Performance High Position

What does this mean?

What are the Possible Causes of the DTC P2599 2018 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 2018 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 2018 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 2018 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 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P2599 in a 2018 GMC Sierra?

- Common symptoms include reduced engine power, rough idling, poor acceleration, and the Check Engine Light being illuminated.

2. What are the possible causes of OBDII code P2599 in a 2018 GMC Sierra?

- The code P2599 typically indicates issues with the turbocharger boost control position sensor, such as a faulty sensor, wiring issues, or a vacuum leak.

3. How can I diagnose the cause of OBDII code P2599 in my 2018 GMC Sierra?

- Diagnosing the issue involves checking the turbocharger boost control position sensor, inspecting the wiring for any damage, and verifying vacuum lines for leaks or blockages.

4. Can driving with OBDII code P2599 in a 2018 GMC Sierra cause further damage?

- Continuing to drive with code P2599 may lead to decreased fuel efficiency, potential engine damage, and further issues with the turbocharger system.

5. How can I repair OBDII code P2599 in my 2018 GMC Sierra?

- Repairing the issue involves replacing the faulty turbocharger boost control position sensor, repairing any damaged wiring, and ensuring proper vacuum line connections.

6. Is it safe to drive my 2018 GMC Sierra with OBDII code P2599?

- It is not recommended to drive the vehicle with code P2599 as it can lead to performance issues and potential damage to the turbocharger system.

7. Can I reset OBDII code P2599 in my 2018 GMC Sierra without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear if the root cause of the problem is not addressed.

8. How much does it typically cost to repair OBDII code P2599 in a 2018 GMC Sierra?

- The cost of repairing code P2599 can vary depending on the exact cause of the issue, but it may involve sensor replacement or wiring repairs, which can range from $200 to $500.

9. Will OBDII code P2599 cause my 2018 GMC Sierra to fail an emissions test?

- Yes, having an active OBDII code like P2599 may cause your vehicle to fail an emissions test due to the impact on engine performance and emissions control.

10. How long does it take to repair OBDII code P2599 in a 2018 GMC Sierra?

- The repair time for code P2599 can vary based on the specific cause of the issue and the availability of parts, but it typically takes a few hours to a full day for diagnosis and repair.