AutoCodes – GMC – P10C6 2015 GMC Sierra

P10C6 2015 GMC Sierra Code - Engine Diagnostic Status 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 Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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: P10C6 2015 GMC Sierra indicates Engine Diagnostic Status Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module harness is open or shorted, Engine Control Module 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 173

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 P10C6 2015 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 Diagnostic Status Signal Message Counter Incorrect.

OBDII Code P10C6 2015 GMC Sierra - Engine Diagnostic Status Signal Message Counter Incorrect - AutoCodes.com — P10C6 2015 GMC Sierra Code - Engine Diagnostic Status Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P10C6 2015 GMC Sierra?

Faulty Engine Control Module (ECM)
Engine Control Module harness is open or shorted
Engine Control Module circuit poor electrical connection

How to Fix the DTC P10C6 2015 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 P10C6 2015 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 P10C6 2015 GMC Sierra code?

Need more information on how to fix the P10C6 2015 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 P10C6 2015 GMC Sierra Code

1. What does OBDII code P10C6 mean on a 2015 GMC Sierra?

P10C6 refers to "Engine Diagnostic Status Signal Message Counter Incorrect," indicating an issue with communication or data synchronization between the engine control module (ECM) and other control modules.

2. What are common symptoms of code P10C6 in a 2015 GMC Sierra?

Symptoms may include an illuminated check engine light, reduced engine performance, communication errors between modules, or issues with diagnostic functions.

3. What causes code P10C6 to appear on a 2015 GMC Sierra?

The code is commonly triggered by faulty wiring, a malfunctioning control module, corrupted software, or issues with communication signals between the modules.

4. Can a loose or corroded connection cause the P10C6 code?

Yes, loose, corroded, or damaged wiring and connectors can disrupt communication and trigger the P10C6 code.

5. How do you diagnose P10C6 on a 2015 GMC Sierra?

A technician will use a scan tool to check for related codes, inspect wiring and connectors, and verify communication between the ECM and other modules.

6. Is the P10C6 code likely to cause drivability issues?

It may cause minor drivability issues like reduced performance or diagnostic errors, but it typically does not lead to a complete breakdown.

7. Can updating the ECM software fix the P10C6 code?

Yes, in some cases, updating or reprogramming the ECM software can resolve the issue if the problem is caused by a software glitch.

8. Is replacing the ECM necessary to fix code P10C6?

Only if the ECM is found to be faulty after thorough diagnostics. Often, the issue can be resolved through wiring repairs or software updates.

9. How much does it cost to repair code P10C6 on a 2015 GMC Sierra?

The cost depends on the root cause. Wiring repairs or software updates may cost $100-$300, while ECM replacement could exceed $1,000.

10. Can you drive a 2015 GMC Sierra with the P10C6 code?

While it may still be drivable, itâ€™s recommended to address the issue promptly to avoid further complications or potential module communication failures.