AutoCodes – Generic – P11CB

P11CB Code - Barometric Pressure Too High

Quick Answer

The Engine Control Module (ECM) monitors the Barometric Pressure Sensor. Common causes include Faulty Barometric Pressure Sensor, Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor 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: P11CB indicates Barometric Pressure Too High.
Common causes: Common causes include Faulty Barometric Pressure Sensor, Barometric Pressure Sensor harness is open or shorted, Barometric Pressure Sensor 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 3,205

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 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P11CB Description

The Engine Control Module (ECM) monitors the Barometric Pressure Sensor. The ECM sets the OBDII code when the Barometric Pressure Sensor is not to factory specifications.

OBDII Code P11CB - Barometric Pressure Too High - AutoCodes.com — P11CB Code - Barometric Pressure Too High

What does this mean?

What are the Possible Causes of the DTC P11CB?

Faulty Barometric Pressure Sensor
Barometric Pressure Sensor harness is open or shorted
Barometric Pressure Sensor circuit poor electrical connection

How to Fix the DTC P11CB?

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 P11CB 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 P11CB code?

Need more information on how to fix the P11CB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P11CB code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P11CB BMW — Barometric Pressure Too High
P11CB Chevrolet — Nox Sensor 1 Performance Signal High
P11CB GMC — Nox Sensor 1 Performance Signal High
P11CB MINI — Barometric Pressure Too High

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 P11CB Code

1. What are the common symptoms of OBDII code P11CB (Barometric Pressure Too High)?

- Common symptoms include rough idling, decreased fuel efficiency, and potential engine stalling.

2. What are the possible causes of OBDII code P11CB?

- Potential causes include a faulty barometric pressure sensor, a vacuum leak, or issues with the engine's air intake system.

3. How can I diagnose the cause of OBDII code P11CB?

- Use a diagnostic scanner to read the code and check the barometric pressure sensor's readings. Inspect the vacuum lines for leaks and ensure proper functioning of the air intake system.

4. Can a dirty air filter trigger OBDII code P11CB?

- Yes, a dirty air filter can restrict airflow and affect barometric pressure readings, potentially triggering the P11CB code.

5. How can I repair OBDII code P11CB related to a faulty barometric pressure sensor?

- Replace the faulty barometric pressure sensor with a new one following the manufacturer's recommended procedures.

6. Are there any quick fixes for OBDII code P11CB due to a vacuum leak?

- Check and repair any damaged or disconnected vacuum lines. Clear the code and monitor for recurrence.

7. Will driving with OBDII code P11CB harm my vehicle?

- Driving with this code may affect engine performance and fuel efficiency. It's recommended to address the issue promptly to prevent further damage.

8. Can extreme weather conditions trigger OBDII code P11CB?

- Yes, extreme temperature changes or high-altitude driving can impact barometric pressure readings and potentially trigger the P11CB code.

9. Is it safe to ignore OBDII code P11CB if my vehicle seems to be running fine?

- Ignoring the code may lead to decreased fuel efficiency and potential engine performance issues. It's advisable to address the problem to maintain optimal vehicle performance.

10. How can a professional mechanic help in resolving OBDII code P11CB?

- A professional mechanic can conduct a thorough diagnosis, pinpoint the exact cause of the code, and perform the necessary repairs using specialized tools and expertise.