P10B8 2017 GMC Sierra Code - Mass Air Flow Sensor Barometric Pressure 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
- P10B8 2017 GMC Sierra indicates Mass Air Flow Sensor Barometric Pressure 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.
Code P10B8 2017 GMC Sierra Description
What are the Possible Causes of the DTC P10B8 2017 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 P10B8 2017 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 P10B8 2017 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.
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Frequently Asked Questions about P10B8 2017 GMC Sierra Code
1. What does the OBDII code P10B8 mean on a 2017 GMC Sierra?
P10B8 indicates that the Mass Air Flow (MAF) sensor and the Barometric Pressure sensor on Bank 2 are sending an incorrect message counter signal to the engine control module (ECM).
2. What are common symptoms of the P10B8 code?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, hesitation during acceleration, and the check engine light being illuminated.
3. What causes the P10B8 code to appear?
Common causes include a faulty Mass Air Flow sensor, a damaged Barometric Pressure sensor, wiring or connector issues, or a malfunctioning ECM.
4. Can a dirty air filter trigger the P10B8 code?
While it’s unlikely to directly cause this code, a dirty air filter can affect airflow readings and should be checked and replaced if necessary.
5. How do you diagnose the P10B8 code on a 2017 GMC Sierra?
Diagnosis involves using a scan tool to confirm the code, inspecting the MAF and Barometric Pressure sensors, checking for damaged wiring or loose connections, and verifying the sensors' signal outputs.
6. Can I drive my 2017 GMC Sierra with the P10B8 code active?
Driving with this code may be possible, but it can lead to reduced performance and potential damage to the engine if not addressed promptly.
7. How do you fix the P10B8 code?
Repairs may include cleaning or replacing the MAF sensor, replacing the Barometric Pressure sensor, repairing wiring or connectors, or reprogramming/updating the ECM.
8. Is the P10B8 code specific to Bank 2?
Yes, this code specifically refers to an issue with the MAF and Barometric Pressure sensor signals on Bank 2 of the engine.
9. How much does it cost to fix the P10B8 code?
Repair costs can vary, but replacing a MAF sensor typically ranges from $200 to $350, while wiring repairs or ECM updates may cost more depending on labor rates.
10. Can a vacuum leak cause the P10B8 code?
Although not a direct cause, a vacuum leak can affect airflow and pressure readings, potentially contributing to related sensor issues.
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