AutoCodes – Chevrolet – P10C7 2018 Chevrolet Silverado

P10C7 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 204

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Reductant Control System Signal Message Counter Incorrect - AutoCodes.com — P10C7 2018 Chevrolet Silverado Code - Reductant Control System Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P10C7 2018 Chevrolet Silverado?

Faulty Reductant Control System

How to Fix the DTC P10C7 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

Need more information on how to fix the P10C7 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10C7 2018 Chevrolet Silverado 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 P10C7 2018 Chevrolet Silverado Code

1. What does the OBDII code P10C7 mean on a 2018 Chevrolet Silverado?

The P10C7 code indicates an issue with the Reductant Control System, specifically that the signal message counter is incorrect, which may point to a communication or synchronization error in the system.

2. What are the symptoms of code P10C7 in a 2018 Chevrolet Silverado?

Common symptoms include the Check Engine Light turning on, potential DEF (Diesel Exhaust Fluid) system warnings, and possibly reduced engine performance or limited speed if the issue is not addressed.

3. What causes the P10C7 code to appear?

The code can be triggered by faulty wiring or connectors in the reductant control system, a malfunctioning reductant control module, software issues, or communication errors between modules.

4. Can I drive my 2018 Chevrolet Silverado with a P10C7 code?

While the vehicle may still be drivable, ignoring this code can lead to further DEF system issues, reduced engine performance, or emissions noncompliance. It's best to address it promptly.

5. How can I fix the P10C7 code on my Silverado?

Repairs may include inspecting and repairing wiring or connectors, updating the vehicleâ€™s software, or replacing the reductant control module if it's faulty.

6. Does the P10C7 code affect emissions on a 2018 Chevrolet Silverado?

Yes, the reductant control system is part of the emissions control system, and this code can result in increased emissions if not resolved.

7. How do I diagnose the P10C7 code on my Silverado?

Start by scanning for other related codes, visually inspecting the wiring and connectors, and testing the reductant control module to ensure proper function and communication.

8. What tools are needed to troubleshoot the P10C7 code?

Basic tools include an OBDII scanner, a multimeter for electrical testing, and possibly a GM-specific diagnostic tool for advanced module communication checks.

9. Is the P10C7 code covered under warranty for a 2018 Chevrolet Silverado?

It may be covered under the emissions warranty, depending on the vehicle's mileage and age. Check with your dealer for warranty details.

10. Can updating the ECU fix the P10C7 code?

Yes, in some cases, updating the Engine Control Unit (ECU) software or the reductant control module software can resolve synchronization or communication issues causing the code.