AutoCodes – BMW – P1047 BMW

P1047 BMW Code - Valvetronic Control Circuit High Input

Quick Answer

The Valvetronic (VVT) System is a Variable Valve Lift (VVL) system that, in combination with variable valve timing, allows infinite adjustment of the intake valve timing and duration. Common causes include Faulty Valvetronic Control Motor, Valvetronic Control Motor harness is open or shorted, Valvetronic Control Motor 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: P1047 BMW indicates Valvetronic Control Circuit High Input.
Common causes: Common causes include Faulty Valvetronic Control Motor, Valvetronic Control Motor harness is open or shorted, Valvetronic Control Motor 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 3,361

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 Aug 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1047 BMW Description

The Valvetronic (VVT) System is a Variable Valve Lift (VVL) system that, in combination with variable valve timing, allows infinite adjustment of the intake valve timing and duration. The system helps improve fuel economy and emissions and negates the need for a throttle body in regular use. The electronic control of the Valvetronic is dependent on, Voltage Limits, Adaptations, current and power stage temperature. The monitoring function performs an electrical diagnosis Of the DC motor lines. The goal of this function is to detect a short circuit at the VVL output stage. The function uses temperatures from the sensor outputs of the power stage. If the temperature of one power stage is greater than a threshold the function checks the output stage. If a short circuit is detected an error is set.

OBDII Code P1047 BMW - Valvetronic Control Circuit High Input - AutoCodes.com — P1047 BMW Code - Valvetronic Control Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P1047 BMW?

Faulty Valvetronic Control Motor
Valvetronic Control Motor harness is open or shorted
Valvetronic Control Motor circuit poor electrical connection

How to Fix the DTC P1047 BMW?

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 P1047 BMW 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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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 P1047 BMW Code

1. What are common symptoms of OBDII code P1047 in a BMW related to the Valvetronic Control Circuit?

- Common symptoms include rough idling, loss of power, engine misfires, and decreased fuel efficiency.

2. What are some possible causes of the Valvetronic Control Circuit High Input error code P1047 in a BMW?

- Possible causes include a faulty Valvetronic motor, damaged wiring or connectors, issues with the Valvetronic controller, or a malfunctioning engine control module (ECM).

3. How can I diagnose the Valvetronic Control Circuit High Input issue in my BMW when OBDII code P1047 is triggered?

- Diagnosis typically involves inspecting the Valvetronic motor and its wiring for damage, checking connectors for corrosion, and using a scan tool to monitor sensor data for irregularities.

4. Is it safe to continue driving my BMW with OBDII code P1047 related to the Valvetronic Control Circuit?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and potential safety hazards.

5. Can I reset the OBDII code P1047 related to the Valvetronic Control Circuit in my BMW on my own?

- While you can clear the code with an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. What are some repair tips for addressing the Valvetronic Control Circuit High Input error code P1047 in a BMW?

- Repair tips may include checking and repairing damaged wiring, replacing the Valvetronic motor if needed, ensuring proper connections, and recalibrating the Valvetronic system.

7. How much does it typically cost to repair the Valvetronic Control Circuit issue causing OBDII code P1047 in a BMW?

- Repair costs can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast with automotive knowledge fix the Valvetronic Control Circuit High Input problem related to OBDII code P1047 in a BMW?

- While some repairs may be possible for experienced DIYers, addressing complex issues with the Valvetronic system may require specialized tools and expertise best left to professionals.

9. Are there any preventative maintenance tips to help avoid triggering OBDII code P1047 in a BMW due to Valvetronic Control Circuit issues?

- Regularly servicing the Valvetronic system, checking for signs of wear or damage, and addressing any engine performance issues promptly can help prevent this error code.

10. How long does it typically take to repair the Valvetronic Control Circuit High Input issue causing OBDII code P1047 in a BMW?

- Repair times can vary based on the specific problem and the availability of parts, but it may take a few hours to a full day for a professional technician to diagnose and fix the issue.