P10C7 2016 GMC Sierra 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 2016 GMC Sierra 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.
Code P10C7 2016 GMC Sierra Description
What are the Possible Causes of the DTC P10C7 2016 GMC Sierra?
- Faulty Reductant Control System
How to Fix the DTC P10C7 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 P10C7 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 P10C7 2016 GMC Sierra code?
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Frequently Asked Questions about P10C7 2016 GMC Sierra Code
What does the P10C7 code mean on a 2016 GMC Sierra?
The P10C7 code indicates an issue with the reductant control system, specifically that the signal message counter is incorrect, suggesting a communication problem between the ECM and the reductant control module.
What are the common symptoms of the P10C7 code in a GMC Sierra?
Symptoms may include the check engine light turning on, reduced engine performance, and potential DEF (Diesel Exhaust Fluid) system warnings on the dashboard.
What causes the P10C7 code to appear?
The most common causes include a malfunctioning reductant control module, wiring or connector issues, software glitches, or a failed ECM.
Can a bad reductant control module trigger the P10C7 code?
Yes, a faulty reductant control module can cause this code if it fails to send proper signal messages to the ECM.
How can you diagnose the P10C7 code?
Diagnosis involves using an OBDII scanner to read the code, inspecting the wiring and connectors for damage or corrosion, and testing the reductant control module and ECM for proper operation.
Can the P10C7 code affect vehicle performance?
Yes, this code can reduce engine performance or limit speed if the DEF system is compromised or not communicating properly.
Is it safe to drive with the P10C7 code active?
While the vehicle may still be operable, driving with this code active could lead to reduced performance and may eventually cause the truck to enter a limp mode.
What repairs are typically required to fix the P10C7 code?
Common repairs include replacing a faulty reductant control module, addressing wiring or connector issues, and performing a software update or reprogramming the ECM.
Can a software update fix the P10C7 code?
Yes, if the issue is related to outdated ECM software or communication errors, a software update may resolve the problem.
How much does it cost to repair the P10C7 code?
Repair costs can vary but may range from $200 to $1,000, depending on whether the issue is a minor wiring fix or requires replacing the reductant control module or ECM.
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