P10B7 2018 GMC Sierra 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 2018 GMC Sierra 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.
Code P10B7 2018 GMC Sierra Description
What are the Possible Causes of the DTC P10B7 2018 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 P10B7 2018 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 P10B7 2018 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 P10B7 2018 GMC Sierra Code
1. What does the OBDII code P10B7 mean on a 2018 GMC Sierra?
P10B7 indicates an issue with the Mass Air Flow (MAF) sensor where the intake air signals message counter is incorrect for Bank 2.
2. What are the common symptoms of the P10B7 code?
Symptoms may include reduced engine performance, poor fuel efficiency, rough idling, and the check engine light being illuminated.
3. What causes the P10B7 code on a 2018 GMC Sierra?
Common causes include a faulty MAF sensor, wiring or connection issues, intake air leaks, or software glitches in the powertrain control module (PCM).
4. Can a dirty air filter cause the P10B7 code?
Yes, a clogged or dirty air filter can restrict airflow and potentially contribute to this code, as it may affect the MAF sensor readings.
5. How do I fix the P10B7 code on my GMC Sierra?
Start by inspecting and cleaning the MAF sensor, checking for damaged wiring or connectors, and replacing the air filter if needed. If the issue persists, the MAF sensor or PCM may need to be replaced.
6. Is it safe to drive with the P10B7 code?
While it may be possible to drive, it is not recommended as it can lead to further engine issues, reduced performance, and increased fuel consumption.
7. How do I test the MAF sensor for the P10B7 code?
You can use a multimeter to check the MAF sensor's voltage and resistance. Compare the values to the manufacturer's specifications to determine if the sensor is faulty.
8. Can a vacuum leak trigger the P10B7 code?
Yes, a vacuum leak can affect airflow readings and potentially cause the P10B7 code to appear.
9. Does the P10B7 code affect only Bank 2?
Yes, this code specifically refers to Bank 2, which is the side of the engine opposite Bank 1 (usually where cylinder 2 is located).
10. Will clearing the P10B7 code fix the problem?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.
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