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AutoCodes - Generic - P0046

P0046 Code - Turbocharger Boost Control Position Performance

- Code Popularity: 51,578 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0046?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P0046?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0046 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0046 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 - Turbocharger Boost Control Position Performance - AutoCodes.com
P0046 Code - Turbocharger Boost Control Position Performance

Need More Information on the Code?

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Information for Specific Makes

  • P0046 Acura Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem  📷
  • P0046 Chevrolet Turbocharger Boost Control Position Performance  📷
  • P0046 GMC Turbocharger Boost Control Position Performance  📷
  • P0046 Honda Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem  📷

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Code P0046 comments

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