AutoCodes – Chevrolet – P0046 2017 Chevrolet Silverado

P0046 2017 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 2017 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 686

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 2017 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 2017 Chevrolet Silverado - Turbocharger Boost Control Position Performance - AutoCodes.com — P0046 2017 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

What does this mean?

What are the Possible Causes of the DTC P0046 2017 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 2017 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 2017 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 2017 Chevrolet Silverado code?

Need more information on how to fix the P0046 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0046 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0046 in a 2017 Chevrolet Silverado?

When this code is triggered, common symptoms may include a lack of power, reduced fuel efficiency, and potentially an illuminated Check Engine Light on the dashboard.

2. What does the OBDII code P0046 on a 2017 Chevrolet Silverado indicate?

Code P0046 specifically refers to Turbocharger Boost Control Position Performance, indicating an issue with the turbocharger control system's operation.

3. What are some possible causes of OBDII code P0046 in a 2017 Chevrolet Silverado?

Potential causes of code P0046 include a faulty turbocharger wastegate actuator, wiring or connector issues in the turbocharger system, or a problem with the turbocharger control module.

4. How can I diagnose the OBDII code P0046 on my 2017 Chevrolet Silverado?

Diagnosing code P0046 may involve conducting a visual inspection of the turbocharger system components, checking the wiring and connectors for any damage, and using a scan tool to monitor turbocharger boost control parameters.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P0046?

It is not recommended to continue driving with code P0046 present, as it can lead to further damage to the turbocharger system and potentially affect the vehicle's performance and fuel efficiency.

6. How can I repair OBDII code P0046 on my 2017 Chevrolet Silverado?

Repairing code P0046 may involve replacing the turbocharger wastegate actuator, repairing any damaged wiring or connectors, or reprogramming the turbocharger control module as necessary.

7. Will resetting the Check Engine Light resolve OBDII code P0046 on a 2017 Chevrolet Silverado?

Simply resetting the Check Engine Light without addressing the underlying issue causing code P0046 will not resolve the problem. It is important to diagnose and repair the root cause of the code.

8. Are there any maintenance tips to prevent OBDII code P0046 in a 2017 Chevrolet Silverado?

Regularly inspecting and maintaining the turbocharger system, ensuring proper engine oil levels and quality, and addressing any performance issues promptly can help prevent code P0046 from occurring.

9. Can a DIY enthusiast repair OBDII code P0046 on a 2017 Chevrolet Silverado?

While some aspects of diagnosing and repairing code P0046 may be within reach of a skilled DIY enthusiast, it is recommended to consult a professional technician for complex turbocharger system repairs to ensure proper resolution.

10. Is it necessary to drive to a dealership for OBDII code P0046 diagnosis and repair on a 2017 Chevrolet Silverado?

While a dealership may have specialized tools and expertise in handling Chevrolet vehicles, independent repair shops with experience in turbocharger systems can also effectively diagnose and repair code P0046 on a 2017 Silverado.