P10C8 2014 GMC Sierra Code - Reductant Temperature 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 Temperature Sensor, Reductant Temperature Sensor harness is open or shorted, Reductant Temperature Sensor 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
- P10C8 2014 GMC Sierra indicates Reductant Temperature Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Reductant Temperature Sensor, Reductant Temperature Sensor harness is open or shorted, Reductant Temperature Sensor 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.
Code P10C8 2014 GMC Sierra Description
What are the Possible Causes of the DTC P10C8 2014 GMC Sierra?
- Faulty Reductant Temperature Sensor
- Reductant Temperature Sensor harness is open or shorted
- Reductant Temperature Sensor circuit poor electrical connection
How to Fix the DTC P10C8 2014 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 P10C8 2014 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 P10C8 2014 GMC Sierra code?
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Frequently Asked Questions about P10C8 2014 GMC Sierra Code
What does the OBDII code P10C8 mean on a 2014 GMC Sierra?
P10C8 indicates an issue with the reductant temperature signal message counter, which is related to the diesel exhaust fluid (DEF) system.
What are the common symptoms of code P10C8 on a 2014 GMC Sierra?
Symptoms may include a check engine light, reduced engine performance, or warnings related to the DEF system.
What causes the P10C8 code to appear?
The most common causes include a malfunctioning reductant temperature sensor, wiring or connection issues, or a fault in the DEF control module.
Can I drive my 2014 GMC Sierra with the P10C8 code?
Driving with this code active may eventually lead to reduced power mode or engine derate, so it’s best to address the issue promptly.
How can I fix the P10C8 code on my 2014 GMC Sierra?
Inspect the reductant temperature sensor, check wiring and connectors for damage, and test the DEF control module for proper operation.
Does the P10C8 code mean I need to replace the reductant temperature sensor?
Not necessarily. First, verify the sensor's condition and check related wiring and connectors before replacing any parts.
What tools are needed to diagnose the P10C8 code?
You’ll need an OBDII scanner capable of reading manufacturer-specific codes, a multimeter for electrical testing, and possibly a repair manual for your truck.
Is the P10C8 code covered under warranty for a 2014 GMC Sierra?
It may be covered if your vehicle is still under a powertrain or emissions-related warranty. Check with your dealer for details.
Can a software update fix the P10C8 code?
In some cases, a software update for the DEF control module may resolve the issue. Check with your dealership for any available updates.
What happens if I ignore the P10C8 code?
Ignoring this code could lead to DEF system malfunctions, reduced power mode, or engine derate, which could limit the vehicle's drivability.
Discuss the causes and fixes for P10C8 2014 GMC Sierra OBDII Code
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