AutoCodes – GMC – P10B9 2014 GMC Sierra

P10B9 2014 GMC Sierra Code - Mass Air Flow Sensor Barometric Pressure Sensor Signal Message Counter Incorrect Bank 1

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: P10B9 2014 GMC Sierra indicates Mass Air Flow Sensor Barometric Pressure Sensor Signal Message Counter Incorrect Bank 1.
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 160

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 26, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P10B9 2014 GMC Sierra 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 Barometric Pressure Sensor Signal Message Counter Incorrect Bank 1.

OBDII Code P10B9 2014 GMC Sierra - Mass Air Flow Sensor Barometric Pressure Sensor Signal Message Counter Incorrect Bank 1 - AutoCodes.com — P10B9 2014 GMC Sierra Code - Mass Air Flow Sensor Barometric Pressure Sensor Signal Message Counter Incorrect Bank 1

What does this mean?

What are the Possible Causes of the DTC P10B9 2014 GMC Sierra?

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 P10B9 2014 GMC Sierra?

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 P10B9 2014 GMC Sierra 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 P10B9 2014 GMC Sierra code?

Need more information on how to fix the P10B9 2014 GMC Sierra code? Get Access to Factory Service Manuals

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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 P10B9 2014 GMC Sierra Code

1. What does the OBDII code P10B9 mean on a 2014 GMC Sierra?

The P10B9 code indicates an issue with the Mass Air Flow (MAF) sensor or Barometric Pressure (BARO) sensor signal message counter being incorrect on Bank 1.

2. What are the common symptoms of the P10B9 code on a 2014 GMC Sierra?

Symptoms may include reduced engine performance, poor fuel economy, rough idling, hesitation during acceleration, and the check engine light being illuminated.

3. What causes the P10B9 code to appear on a 2014 GMC Sierra?

Possible causes include a faulty MAF sensor, a malfunctioning BARO sensor, wiring or connector issues in the sensor circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the P10B9 code on my GMC Sierra?

Start by using a scan tool to check for pending or related codes, visually inspect the MAF and BARO sensor wiring and connectors for damage, and test the sensors for proper operation using a multimeter or diagnostic tool.

5. Can I drive my 2014 GMC Sierra with the P10B9 code?

While it may be possible to drive the vehicle, it is not recommended as the issue can lead to reduced performance, poor fuel efficiency, and potential engine damage if left unresolved.

6. How is the P10B9 code typically fixed?

Repairs may include cleaning or replacing the MAF sensor, replacing the BARO sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ECM.

7. Can a dirty air filter cause the P10B9 code to trigger?

A dirty air filter is unlikely to directly cause the P10B9 code but can impact the MAF sensor's readings, potentially contributing to sensor-related issues.

8. How much does it cost to repair the P10B9 code on a 2014 GMC Sierra?

The cost depends on the repair needed. Replacing a MAF sensor may cost $100â€“$300, while ECM repairs or replacements can range from $500â€“$1,200.

9. Can I fix the P10B9 code on my GMC Sierra myself?

If you're comfortable with basic automotive repairs, you can try cleaning the MAF sensor or inspecting wiring and connectors. For more complex repairs, consult a professional mechanic.

10. Is the P10B9 code specific to Bank 1 on the 2014 GMC Sierra?

Yes, the code specifically refers to an issue with the signal message counter for the MAF or BARO sensor on Bank 1 of the engine.