AutoCodes – BMW – P149C BMW

P149C BMW Code - Evaporative Emission System Shutoff Valve 2 Control Circuit High

Quick Answer

The Engine Control Module (ECM) monitors the Evaporative Emission System Shutoff Valve 2. Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Evaporative Emission System Shutoff Valve 2 harness is open or shorted, Evaporative Emission System Shutoff Valve 2 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: P149C BMW indicates Evaporative Emission System Shutoff Valve 2 Control Circuit High.
Common causes: Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Evaporative Emission System Shutoff Valve 2 harness is open or shorted, Evaporative Emission System Shutoff Valve 2 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 1,403

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 Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P149C BMW Description

The Engine Control Module (ECM) monitors the Evaporative Emission System Shutoff Valve 2. The ECM sets the OBDII code when the Evaporative Emission System Shutoff Valve 2 is not to factory specifications.

OBDII Code P149C BMW - Evaporative Emission System Shutoff Valve 2 Control Circuit High - AutoCodes.com — P149C BMW Code - Evaporative Emission System Shutoff Valve 2 Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P149C BMW?

Faulty Evaporative Emission System Shutoff Valve 2
Evaporative Emission System Shutoff Valve 2 harness is open or shorted
Evaporative Emission System Shutoff Valve 2 circuit poor electrical connection

How to Fix the DTC P149C 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 P149C 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.

Need more information about the P149C BMW code?

Need more information on how to fix the P149C BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P149C BMW code diagnosed by a professional: Find a repair shop in your area

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 P149C BMW Code

1. What are the common symptoms of OBDII code P149C in a BMW?

- Common symptoms include check engine light illumination, rough idling, decreased fuel efficiency, and potential issues with the vehicle's emissions system.

2. What does the OBDII code P149C in a BMW indicate?

- This code relates to a fault in the Evaporative Emission System Shutoff Valve 2 Control Circuit, specifically signaling a high voltage condition.

3. What are some possible causes of the P149C code in a BMW?

- Potential causes include a faulty shutoff valve, damaged wiring or connectors in the control circuit, a malfunctioning control module, or a vacuum leak in the evaporative emission system.

4. How can I diagnose the issue causing the P149C code in my BMW?

- Diagnosing the problem may involve conducting a visual inspection of the components, checking the wiring and connectors for damage, testing the valve for proper operation, and using a diagnostic scan tool to gather more data.

5. Can I drive my BMW with the P149C code present?

- It's generally not recommended to drive with the check engine light on, as the issue causing the code can affect the vehicle's performance and emissions. It's best to address the problem promptly.

6. How can I repair the Evaporative Emission System Shutoff Valve 2 Control Circuit in my BMW?

- Repairing this issue may involve replacing the faulty shutoff valve, repairing damaged wiring or connectors, resetting the control module, and ensuring proper sealing of the evaporative emission system.

7. Will resetting the check engine light resolve the P149C code in my BMW?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear after some driving cycles.

8. Is it possible to prevent the P149C code in my BMW from occurring again?

- Regular maintenance, such as inspecting the emissions system components, ensuring proper gas cap sealing, and addressing any issues promptly, can help prevent the recurrence of the P149C code.

9. Can a DIY enthusiast without much experience repair the P149C code in a BMW?

- While some may attempt basic checks like inspecting wiring and connectors, diagnosing and repairing the specific issue causing the P149C code may require professional expertise and specialized tools.

10. How much should I expect to pay for a professional repair of the P149C code in my BMW?

- The cost of repairing the P149C code can vary depending on the exact cause of the issue, labor rates, and parts needed. It's advisable to get a diagnosis from a qualified mechanic to determine the cost accurately.