AutoCodes – Chevrolet – P0046 2015 Chevrolet Silverado

P0046 2015 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

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: P0046 2015 Chevrolet Silverado indicates Turbocharger Boost Control Position 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 448

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
Cost to Diagnose
FAQs
Comments
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Code P0046 2015 Chevrolet Silverado 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 difference between the commanded turbocharger vane position and the actual turbocharger vane position is greater than 15%, for greater than 10 s.

OBDII Code P0046 2015 Chevrolet Silverado - Turbocharger Boost Control Position Performance - AutoCodes.com — P0046 2015 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

What does this mean?

What are the Possible Causes of the DTC P0046 2015 Chevrolet Silverado?

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 P0046 2015 Chevrolet Silverado?

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 P0046 2015 Chevrolet Silverado 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 P0046 2015 Chevrolet Silverado code?

Need more information on how to fix the P0046 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P0046 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0046 in a 2015 Chevrolet Silverado?

- Common symptoms include reduced engine power, poor acceleration, and the illumination of the Check Engine light.

2. What does OBDII code P0046 on a 2015 Chevrolet Silverado indicate?

- OBDII code P0046 indicates an issue with the turbocharger boost control position performance.

3. What are the possible causes of OBDII code P0046 in a 2015 Chevrolet Silverado?

- Possible causes include a faulty turbocharger wastegate solenoid, damaged wiring or connectors, or a malfunctioning turbocharger actuator.

4. How can I diagnose the cause of OBDII code P0046 in my 2015 Chevrolet Silverado?

- Diagnosing the issue may involve performing a visual inspection of the turbocharger components, checking the wiring and connectors for damage, and testing the turbocharger wastegate solenoid.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P0046?

- It is not recommended to continue driving the vehicle with OBDII code P0046, as it can lead to further damage to the turbocharger system and potentially affect engine performance.

6. How can I repair OBDII code P0046 in my 2015 Chevrolet Silverado?

- Repairing the issue may involve replacing the turbocharger wastegate solenoid, repairing damaged wiring or connectors, or recalibrating the turbocharger actuator.

7. Is it possible to clear OBDII code P0046 in a 2015 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of the problem to prevent the issue from recurring and potentially causing more significant damage.

8. Will OBDII code P0046 cause my 2015 Chevrolet Silverado to fail an emissions test?

- Yes, OBDII code P0046 can cause your vehicle to fail an emissions test due to its impact on engine performance and emissions control systems.

9. Can a DIY enthusiast fix OBDII code P0046 in a 2015 Chevrolet Silverado?

- Depending on your mechanical skills and experience, you may be able to address the issue yourself by following repair guides or seeking assistance from automotive forums.

10. How much can I expect to pay for repairing OBDII code P0046 in my 2015 Chevrolet Silverado?

- The cost of repairing OBDII code P0046 can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars including parts and labor.