AutoCodes – GMC – P10C6 2016 GMC Sierra

P10C6 2016 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 2016 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 195

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 2016 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 2016 GMC Sierra - Engine Diagnostic Status Signal Message Counter Incorrect - AutoCodes.com — P10C6 2016 GMC Sierra Code - Engine Diagnostic Status Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P10C6 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the P10C6 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10C6 2016 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 2016 GMC Sierra Code

1. What does the OBDII code P10C6 mean for a 2016 GMC Sierra?

P10C6 indicates an issue with the Engine Diagnostic Status Signal Message Counter being incorrect, which means the engine control module (ECM) is detecting a mismatch or error in diagnostic signal communication.

2. What are common symptoms of the P10C6 code on a 2016 GMC Sierra?

Symptoms may include an illuminated check engine light, reduced engine performance, erratic idling, or communication issues between the ECM and other modules.

3. What causes the P10C6 code to appear on a 2016 GMC Sierra?

Common causes include a malfunctioning ECM, damaged wiring or connectors in the communication circuit, or corrupted software within the ECM.

4. Can the P10C6 code cause drivability issues in a 2016 GMC Sierra?

Yes, it can cause drivability issues such as reduced power, rough idling, or hesitation, depending on the severity of the communication error.

5. How can I diagnose the P10C6 code on my 2016 GMC Sierra?

Use an advanced OBDII scanner to check for related codes, inspect the wiring and connectors for damage, and verify the integrity of the communication signals between modules.

6. Is the P10C6 code serious for a 2016 GMC Sierra?

While it may not cause immediate engine failure, the code can lead to reduced performance and should be addressed promptly to prevent further issues.

7. What repairs are commonly needed to fix the P10C6 code on a 2016 GMC Sierra?

Repairs may include reprogramming or replacing the ECM, repairing or replacing damaged wiring or connectors, or updating the ECM software.

8. Can clearing the P10C6 code fix the issue on a 2016 GMC Sierra?

Clearing the code may temporarily turn off the check engine light, but if the root cause isnâ€™t addressed, the code is likely to return.

9. How much does it cost to fix the P10C6 code on a 2016 GMC Sierra?

Repair costs vary but may range from $150 for reprogramming to over $1,000 if a new ECM is needed, depending on labor rates and parts pricing.

10. Can I continue driving my 2016 GMC Sierra with the P10C6 code?

Itâ€™s possible to drive short distances, but prolonged driving with this code may lead to further engine or communication issues. Itâ€™s best to get it diagnosed and repaired as soon as possible.