AutoCodes – Honda – P0046 Honda

P0046 Honda Code - Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem

Quick Answer

The Powertrain Control Module (PCM) adjusts the boost pressure by controlling the Turbocharger Wastegate Control Actuator of the turbocharger. Common causes include Faulty Turbocharger Wastegate Control Actuator, Turbocharger Wastegate Control Actuator harness is open or shorted, Turbocharger Wastegate Control 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 Honda indicates Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem.
Common causes: Common causes include Faulty Turbocharger Wastegate Control Actuator, Turbocharger Wastegate Control Actuator harness is open or shorted, Turbocharger Wastegate Control 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 1,828

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 Jul 25, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0046 Honda Description

The Powertrain Control Module (PCM) adjusts the boost pressure by controlling the Turbocharger Wastegate Control Actuator of the turbocharger. Boost pressure becomes higher by fully closing the Turbocharger Wastegate Control Valve driven by the Turbocharger Wastegate Control Actuator. The Turbocharger Wastegate Control Valve position is detected by the Turbocharger Wastegate Control Actuator Position Sensor and the signal is input to the PCM for target position feedback control. The Turbocharger Wastegate Control Actuator Position Sensor value when the Turbocharger Wastegate Control Valve is fully closed is stored as a fully closed learning value. Target and actual positions are represented by the relative value from the fully closed position. The PCM sets a target position and outputs a drive signal to the driver IC and drives the Turbocharger Wastegate Control Actuator to be equal to the target position. If the difference of the Turbocharger Wastegate Control Valve between the target position and the actual position is a specified value for a specified time, the PCM detects a malfunction and stores a DTC.

OBDII Code P0046 Honda - Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem - AutoCodes.com — P0046 Honda Code - Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P0046 Honda?

Faulty Turbocharger Wastegate Control Actuator
Turbocharger Wastegate Control Actuator harness is open or shorted
Turbocharger Wastegate Control Actuator circuit poor electrical connection

How to Fix the DTC P0046 Honda?

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 Honda 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.

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

Need Help with the Code?

Get the P0046 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P0046 2016 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
P0046 2017 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
P0046 2018 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
P0046 2019 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
P0046 2020 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem
P0046 2021 Honda CR-V — Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem

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 Honda Code

1. What are the common symptoms of OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

The common symptoms include reduced engine power, decreased fuel efficiency, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Possible causes include a faulty wastegate control solenoid, damaged wiring or connectors in the wastegate control circuit, or a malfunctioning turbocharger.

3. Can driving with OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem cause further damage?

Continued driving with this issue can potentially cause damage to the turbocharger and other engine components, so it is advisable to address the problem promptly.

4. How can I diagnose OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Diagnosis typically involves using a scan tool to read the code, inspecting the wastegate control system components, and testing for proper voltage and continuity in the circuit.

5. Is it possible to repair OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem at home?

While some DIY enthusiasts may be able to address this issue, it is recommended to seek professional help for an accurate diagnosis and proper repair of the turbocharger system.

6. What are some tips for preventing OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Regular maintenance of the turbocharger system, keeping an eye on boost levels, and addressing any performance issues promptly can help prevent this code from occurring.

7. Can a malfunctioning turbocharger itself trigger OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Yes, a malfunctioning turbocharger can lead to an imbalance in the wastegate control system, triggering this code due to performance issues in the turbocharger.

8. How much does it typically cost to repair OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

The cost of repair 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.

9. Will resetting the OBDII system clear the P0046 code in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle for a certain distance or time.

10. What are the potential long-term effects of ignoring OBDII code P0046 in a Honda related to the Turbocharger Wastegate Control Actuator Circuit Range/Performance Problem?

Ignoring this code can lead to further damage to the engine and turbocharger, potentially resulting in costly repairs down the line.