AutoCodes – GMC – P10BF 2014 GMC Sierra

P10BF 2014 GMC Sierra Code - Engine Coolant Bypass Valve Secondary Command Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Coolant Bypass Valve, Engine Coolant Bypass Valve harness is open or shorted, Engine Coolant Bypass Valve 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: P10BF 2014 GMC Sierra indicates Engine Coolant Bypass Valve Secondary Command Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Engine Coolant Bypass Valve, Engine Coolant Bypass Valve harness is open or shorted, Engine Coolant Bypass Valve 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 175

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 26, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P10BF 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 Engine Coolant Bypass Valve Secondary Command Signal Message Counter is Incorrect.

OBDII Code P10BF 2014 GMC Sierra - Engine Coolant Bypass Valve Secondary Command Signal Message Counter Incorrect - AutoCodes.com — P10BF 2014 GMC Sierra Code - Engine Coolant Bypass Valve Secondary Command Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P10BF 2014 GMC Sierra?

Faulty Engine Coolant Bypass Valve
Engine Coolant Bypass Valve harness is open or shorted
Engine Coolant Bypass Valve circuit poor electrical connection

How to Fix the DTC P10BF 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 P10BF 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 P10BF 2014 GMC Sierra code?

Need more information on how to fix the P10BF 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 P10BF 2014 GMC Sierra Code

1. What does the OBDII code P10BF mean on a 2014 GMC Sierra?

P10BF indicates an issue with the Engine Coolant Bypass Valve Secondary Command Signal, specifically that the message counter is incorrect or inconsistent.

2. What are the common symptoms of code P10BF on a 2014 GMC Sierra?

Symptoms may include an illuminated Check Engine Light, engine overheating, poor heater performance, or irregular engine temperature readings.

3. What causes the P10BF code to appear?

This code is often caused by a malfunctioning coolant bypass valve, wiring issues, a faulty sensor, or a failure in the engine control module (ECM) communication.

4. How can I diagnose the P10BF code on my 2014 GMC Sierra?

Start by checking the wiring and connectors for damage or corrosion, inspect the coolant bypass valve for proper operation, and use a scan tool to monitor live data and confirm signal inconsistencies.

5. Can I drive my 2014 GMC Sierra with the P10BF code?

Driving with this code is not recommended, as it can lead to engine overheating or reduced performance, potentially causing further damage.

6. How do I fix the P10BF code on a 2014 GMC Sierra?

Repairs may involve replacing the coolant bypass valve, repairing damaged wiring, or reprogramming or replacing the ECM if necessary.

7. Is the P10BF code related to engine overheating?

Yes, a malfunctioning coolant bypass valve associated with this code can disrupt coolant flow, leading to potential engine overheating.

8. How much does it cost to fix the P10BF code on a 2014 GMC Sierra?

Repair costs can vary but typically range from $150â€“$500, depending on whether the issue is with the valve, wiring, or ECM.

9. Can a low coolant level trigger the P10BF code?

While low coolant levels might not directly trigger this code, they can exacerbate engine cooling issues, which may indirectly cause related malfunctions.

10. Does the P10BF code require ECM replacement?

ECM replacement is rarely required but may be necessary if the module fails to send or receive proper commands after other components have been ruled out or repaired.