AutoCodes – GMC – P10C7 GMC

P10C7 GMC Code - Reductant Control System 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 Reductant Control System. 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: P10C7 GMC indicates Reductant Control System Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Reductant Control System.
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 712

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 P10C7 GMC 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 Reductant Control System Signal Message Counter is Incorrect.

OBDII Code P10C7 GMC - Reductant Control System Signal Message Counter Incorrect - AutoCodes.com — P10C7 GMC Code - Reductant Control System Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P10C7 GMC?

Faulty Reductant Control System

How to Fix the DTC P10C7 GMC?

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 P10C7 GMC 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 P10C7 GMC code?

Need more information on how to fix the P10C7 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10C7 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P10C7 2014 GMC Sierra — Reductant Control System Signal Message Counter Incorrect
P10C7 2015 GMC Sierra — Reductant Control System Signal Message Counter Incorrect
P10C7 2016 GMC Sierra — Reductant Control System Signal Message Counter Incorrect
P10C7 2017 GMC Sierra — Reductant Control System Signal Message Counter Incorrect
P10C7 2018 GMC Sierra — Reductant Control System Signal Message Counter Incorrect

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 P10C7 GMC Code

1. What are common symptoms of OBDII code P10C7 GMC?

- Common symptoms include the Check Engine Light illuminating, reduced engine performance, and potential issues with the vehicle's emissions system.

2. What does the OBDII code P10C7 GMC indicate?

- This code indicates that the reductant control system signal message counter is incorrect, meaning there may be a problem with the vehicle's emissions control system.

3. What are possible causes of OBDII code P10C7 GMC?

- Possible causes include a faulty reductant control module, wiring issues, sensor malfunctions, or software glitches within the vehicle's onboard diagnostic system.

4. How can I diagnose OBDII code P10C7 GMC?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the reductant control system components, and testing sensors and wiring for proper functionality.

5. How serious is OBDII code P10C7 GMC?

- While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential damage to the emissions control system and ensure optimal engine performance.

6. Can I continue driving with OBDII code P10C7 GMC?

- It is generally recommended to address the underlying issue causing the code as soon as possible to avoid potential complications and ensure the vehicle's emissions system is functioning correctly.

7. How can OBDII code P10C7 GMC be repaired?

- Repair options may include replacing the reductant control module, repairing wiring or sensor issues, updating software, or resetting the code after addressing the root cause of the problem.

8. Will OBDII code P10C7 GMC cause my vehicle to fail emissions testing?

- Yes, if this code is present during an emissions test, it may cause your vehicle to fail, as it indicates a potential issue with the reductant control system, which is crucial for emissions compliance.

9. Can a DIY enthusiast fix OBDII code P10C7 GMC?

- Depending on the underlying cause, some DIY enthusiasts may be able to address this code by replacing faulty components, checking wiring connections, or performing basic diagnostic steps with the help of a repair manual.

10. How can I prevent OBDII code P10C7 GMC from recurring?

- To prevent this code from recurring, it is essential to address any underlying issues promptly, perform regular maintenance on the emissions control system, and follow the manufacturer's recommended service schedule.