AutoCodes – GMC – P10B7 GMC

P10B7 GMC Code - Mass Air Flow Sensor Intake Air Signals 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: P10B7 GMC indicates Mass Air Flow Sensor Intake Air Signals 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 600

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 25, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P10B7 GMC 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 Intake Air Signals Message Counter Incorrect Bank 2.

OBDII Code P10B7 GMC - Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2 - AutoCodes.com — P10B7 GMC Code - Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2

What does this mean?

What are the Possible Causes of the DTC P10B7 GMC?

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 P10B7 GMC?

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 P10B7 GMC 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 P10B7 GMC code?

Need more information on how to fix the P10B7 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10B7 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P10B7 2014 GMC Sierra — Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2
P10B7 2015 GMC Sierra — Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2
P10B7 2016 GMC Sierra — Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2
P10B7 2017 GMC Sierra — Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2
P10B7 2018 GMC Sierra — Mass Air Flow Sensor Intake Air Signals Message Counter Incorrect Bank 2

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 P10B7 GMC Code

1. What does the OBDII code P10B7 mean for a GMC vehicle?

The P10B7 code indicates that the mass air flow (MAF) sensor on Bank 2 has detected an incorrect intake air signal message counter, which could affect engine performance.

2. What are the common symptoms of code P10B7 in a GMC?

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

3. What causes the P10B7 code to appear on a GMC?

Common causes include a faulty mass air flow (MAF) sensor, damaged wiring or connectors, a malfunctioning PCM, or air intake leaks.

4. How can I diagnose the P10B7 code on my GMC?

Start by inspecting the MAF sensor and its wiring for damage or loose connections. Use a diagnostic scanner to verify the code and check for related issues in the Bank 2 air intake system.

5. Can a dirty air filter cause the P10B7 code on a GMC?

Yes, a clogged or dirty air filter can restrict airflow, potentially contributing to the conditions that trigger the P10B7 code.

6. Is it safe to drive with the P10B7 code on a GMC?

While it may be possible to drive, doing so can lead to poor engine performance and potential long-term damage. Itâ€™s best to address the issue promptly.

7. How do I fix the P10B7 code on a GMC?

Repair options include cleaning or replacing the MAF sensor, repairing damaged wiring, checking for intake leaks, and updating or reprogramming the PCM if necessary.

8. What tools are needed to troubleshoot the P10B7 code on a GMC?

Youâ€™ll need a diagnostic scanner, a multimeter for testing electrical connections, and tools to inspect or replace the MAF sensor and air intake components.

9. Can a PCM failure cause the P10B7 code on a GMC?

Yes, a malfunctioning powertrain control module (PCM) can misinterpret signals from the MAF sensor and trigger the P10B7 code.

10. How much does it cost to repair the P10B7 code on a GMC?

Repair costs vary depending on the issue, but replacing a MAF sensor typically ranges from $200 to $400, while wiring repairs or PCM updates may cost less.