AutoCodes – Chevrolet – P0046 2014 Chevrolet Silverado

P0046 2014 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 2014 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 551

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 2014 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 2014 Chevrolet Silverado - Turbocharger Boost Control Position Performance - AutoCodes.com — P0046 2014 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

What does this mean?

What are the Possible Causes of the DTC P0046 2014 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 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P0046 2014 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 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0046 in a 2014 Chevrolet Silverado?

The common symptoms of code P0046 in a 2014 Chevrolet Silverado include reduced engine power, poor acceleration, and possible check engine light illumination.

2. What does OBDII code P0046 indicate in a 2014 Chevrolet Silverado?

Code P0046 in a 2014 Chevrolet Silverado indicates a Turbocharger Boost Control Position Performance issue.

3. What are some possible causes of OBDII code P0046 in a 2014 Chevrolet Silverado?

Possible causes of code P0046 in a 2014 Chevrolet Silverado include a faulty turbocharger wastegate, damaged wiring or connectors, or a malfunctioning boost control solenoid.

4. How can I diagnose OBDII code P0046 in a 2014 Chevrolet Silverado?

Diagnosing code P0046 in a 2014 Chevrolet Silverado involves inspecting the turbocharger system, checking for damaged wiring or connectors, and testing the boost control solenoid for proper operation.

5. Can driving with OBDII code P0046 in a 2014 Chevrolet Silverado cause further damage?

Continuing to drive with code P0046 in a 2014 Chevrolet Silverado can potentially cause damage to the turbocharger system and may lead to further engine issues if not addressed promptly.

6. How can I repair OBDII code P0046 in a 2014 Chevrolet Silverado?

Repairing code P0046 in a 2014 Chevrolet Silverado typically involves replacing a faulty turbocharger wastegate, repairing damaged wiring or connectors, or replacing a malfunctioning boost control solenoid.

7. Is it safe to continue driving my 2014 Chevrolet Silverado with OBDII code P0046?

It is not recommended to continue driving your 2014 Chevrolet Silverado with code P0046 as it can lead to reduced engine performance and potential long-term damage if left unresolved.

8. Can a DIY enthusiast fix OBDII code P0046 in a 2014 Chevrolet Silverado?

While some aspects of diagnosing and repairing code P0046 in a 2014 Chevrolet Silverado may be DIY-friendly, it is recommended to seek professional assistance for accurate diagnosis and proper repair.

9. How much does it typically cost to repair OBDII code P0046 in a 2014 Chevrolet Silverado?

The cost of repairing code P0046 in a 2014 Chevrolet Silverado can vary depending on the exact cause of the issue, but it may range from a few hundred to a thousand dollars including parts and labor.

10. Will resetting the check engine light resolve OBDII code P0046 in a 2014 Chevrolet Silverado?

Simply resetting the check engine light will not resolve code P0046 in a 2014 Chevrolet Silverado as it indicates a specific turbocharger boost control position performance problem that needs to be diagnosed and repaired appropriately.