AutoCodes – Buick – P14BD Buick

P14BD Buick Code - Mass Air Flow Sensor Signal Message Counter Incorrect Bank 2

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Mass Air Flow Sensor, Mass Air Flow Sensor harness is open or shorted, Mass Air Flow 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: P14BD Buick indicates Mass Air Flow Sensor Signal Message Counter Incorrect Bank 2.
Common causes: Common causes include Faulty Mass Air Flow Sensor, Mass Air Flow Sensor harness is open or shorted, Mass Air Flow 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 471

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 Sep 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P14BD Buick Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Mass Air Flow Sensor Signal Message Counter Incorrect Bank 2.

OBDII Code P14BD Buick - Mass Air Flow Sensor Signal Message Counter Incorrect Bank 2 - AutoCodes.com — P14BD Buick Code - Mass Air Flow Sensor Signal Message Counter Incorrect Bank 2

What does this mean?

What are the Possible Causes of the DTC P14BD Buick?

Faulty Mass Air Flow Sensor
Mass Air Flow Sensor harness is open or shorted
Mass Air Flow Sensor circuit poor electrical connection

How to Fix the DTC P14BD Buick?

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 P14BD Buick 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 P14BD Buick Code

1. What does the OBDII code P14BD mean on a Buick?

P14BD indicates that the Mass Air Flow (MAF) sensor on Bank 2 is sending an incorrect signal message counter, which may disrupt engine performance.

2. What are the common symptoms of the P14BD code?

Symptoms may include rough idling, reduced engine performance, poor fuel efficiency, and an illuminated check engine light.

3. What causes the P14BD code to appear?

Common causes include a faulty MAF sensor, wiring or connector issues, a software glitch in the ECM, or air intake leaks.

4. How can I diagnose the P14BD code?

Diagnose it by inspecting the Bank 2 MAF sensor for damage, checking the wiring and connectors for faults, and using a scan tool to monitor the sensor's signal frequency.

5. Can a dirty air filter cause the P14BD code?

Yes, a clogged or dirty air filter can restrict airflow, potentially affecting the MAF sensor's performance and triggering the code.

6. How do I fix the P14BD code on my Buick?

Fixes may include cleaning or replacing the MAF sensor, repairing damaged wiring, replacing a faulty air filter, or reprogramming the ECM if necessary.

7. Is it safe to drive with the P14BD code active?

Driving with this code may result in reduced engine performance and efficiency. Itâ€™s best to address the issue promptly to avoid further damage.

8. Does the P14BD code always mean the MAF sensor is bad?

Not always. It could also stem from wiring issues, air intake leaks, or ECM software problems.

9. Can clearing the P14BD code fix the problem?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be fixed to prevent the code from returning.

10. How much does it cost to repair the P14BD code?

Repair costs can vary. Cleaning the MAF sensor or replacing an air filter is inexpensive, but replacing the sensor or fixing wiring issues may cost $200â€“$400 or more.