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P0046 2015 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

Quick Answer

The P0046 code on a 2015 Chevrolet Silverado indicates an issue with the turbocharger boost control position performance. Common causes include Faulty boost control position sensor: The sensor may be malfunctioning or sending incorrect signals to the ECM, Wiring issues: Damaged or corroded wiring connections can disrupt communication between the sensor and ECM, Turbocharger vane obstruction: Dirt, debris, or carbon buildup can obstruct the turbocharger vanes, affecting their movement. 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 boost control position sensor: The sensor may be malfunctioning or sending incorrect signals to the ECM, Wiring issues: Damaged or corroded wiring connections can disrupt communication between the sensor and ECM, Turbocharger vane obstruction: Dirt, debris, or carbon buildup can obstruct the turbocharger vanes, affecting their movement.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0046 2015 Chevrolet Silverado Description

The P0046 code on a 2015 Chevrolet Silverado indicates an issue with the turbocharger boost control position performance. The turbocharger system in a vehicle is responsible for compressing air and increasing the overall efficiency and power output of the engine. The boost control position sensor monitors the position of the turbocharger's vanes and ensures that the correct amount of boost pressure is being delivered to the engine.

OBDII Code P0046 2015 Chevrolet Silverado - Turbocharger Boost Control Position Performance
P0046 2015 Chevrolet Silverado Code - Turbocharger Boost Control Position Performance

Common Causes of P0046 2015 Chevrolet Silverado

  1. Faulty boost control position sensor: The sensor may be malfunctioning or sending incorrect signals to the ECM.
  2. Wiring issues: Damaged or corroded wiring connections can disrupt communication between the sensor and ECM.
  3. Turbocharger vane obstruction: Dirt, debris, or carbon buildup can obstruct the turbocharger vanes, affecting their movement.
  4. Turbocharger actuator failure: The actuator responsible for adjusting the turbocharger vanes may be faulty or sticking.
  5. ECM software issue: A software glitch or calibration error within the engine control module can cause the code to be triggered.

Symptoms of P0046 2015 Chevrolet Silverado

  1. Reduced engine power: The vehicle may feel sluggish and have difficulty accelerating.
  2. Decreased fuel efficiency: The engine may consume more fuel than usual due to the inefficient turbocharger operation.
  3. Check Engine Light: The P0046 code will trigger the check engine light to illuminate on the dashboard.
  4. Rough idling: The engine may idle roughly or inconsistently due to the incorrect boost pressure.

How to Fix P0046 2015 Chevrolet Silverado

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and perform a visual inspection of the turbocharger system.
  2. Check the boost control position sensor: Test the sensor's operation and replace it if necessary.
  3. Inspect wiring connections: Check for any damaged or corroded wiring and repair or replace as needed.
  4. Clean the turbocharger vanes: Remove any obstructions or buildup on the turbocharger vanes to ensure proper movement.
  5. Test the turbocharger actuator: Check the actuator's operation and replace it if it is failing.

Cost to Fix P0046 2015 Chevrolet Silverado

The cost of repairing a P0046 code on a 2015 Chevrolet Silverado can vary depending on the specific issue causing the code and the labor rates in your area. On average, the parts for this repair can range from $100 to $300, while labor costs can be between $150 and $400. Overall, you can expect the total repair cost to be between $250 and $700. Keep in mind that prices may fluctuate based on location, vehicle make and model, and the expertise of the auto repair shop. It is recommended to obtain quotes from multiple shops to find the best deal.

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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.

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