AutoCodesGMC – P10C6 2017 GMC Sierra

P10C6 2017 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 2017 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 191
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 26, 2022
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Code P10C6 2017 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 2017 GMC Sierra - Engine Diagnostic Status Signal Message Counter Incorrect - AutoCodes.com
P10C6 2017 GMC Sierra Code - Engine Diagnostic Status Signal Message Counter Incorrect

What are the Possible Causes of the DTC P10C6 2017 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 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 P10C6 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.

Need more information about the P10C6 2017 GMC Sierra code?

Need more information on how to fix the P10C6 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10C6 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 2017 GMC Sierra Code

1. What does the OBDII code P10C6 mean on a 2017 GMC Sierra?

P10C6 indicates an "Engine Diagnostic Status Signal Message Counter Incorrect," often related to a communication issue between control modules.

2. What are the common symptoms of code P10C6 in a 2017 GMC Sierra?

Symptoms may include a check engine light, reduced engine performance, erratic shifting, or issues with communication between the engine control module (ECM) and other systems.

3. What causes the P10C6 code to appear on a 2017 GMC Sierra?

Common causes include software glitches in control modules, damaged wiring, faulty connectors, or a malfunctioning engine control module (ECM).

4. Can the P10C6 code cause drivability issues?

Yes, it can lead to reduced engine performance, hesitation, or erratic transmission behavior depending on the severity of the communication issue.

5. How do you diagnose the P10C6 code on a 2017 GMC Sierra?

Diagnosis involves using a scan tool to check for related codes, inspecting wiring and connectors, updating module software, and testing the ECM for proper communication.

6. Is the P10C6 code specific to the engine control module?

While the ECM is often involved, the code can also point to issues with other modules or the network communication between them.

7. Can a software update fix the P10C6 code on a 2017 GMC Sierra?

Yes, in some cases, updating the software in the ECM or other related modules can resolve the issue.

8. How much does it cost to repair the P10C6 code on a 2017 GMC Sierra?

Repairs can range from $100 to $500 or more, depending on whether it requires software updates, wiring repairs, or ECM replacement.

9. Can I drive my 2017 GMC Sierra with the P10C6 code?

While it may be drivable, it’s not recommended as the issue could lead to further communication problems or reduced performance.

10. What tools are needed to troubleshoot the P10C6 code on a 2017 GMC Sierra?

A professional-grade scan tool capable of reading GM-specific codes and diagnosing module communication is essential.

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