P064C 2015 GMC Sierra Code - Glow Plug Control Module
Quick Answer
The P064C diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the Glow Plug Control Module. Common causes include Faulty Glow Plug Control Module, Wiring issues or loose connections, Corrosion or damage to electrical connectors. 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
- P064C 2015 GMC Sierra indicates Glow Plug Control Module.
- Common causes
- Common causes include Faulty Glow Plug Control Module, Wiring issues or loose connections, Corrosion or damage to electrical connectors.
- 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 P064C 2015 GMC Sierra Description
The P064C diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the Glow Plug Control Module. The Glow Plug Control Module is a crucial component in diesel engines that helps regulate the glow plugs, which are essential for starting the engine, especially in cold weather conditions. When this module malfunctions, it can lead to difficulties starting the engine, reduced fuel efficiency, and overall poor performance.
Common Causes of P064C 2015 GMC Sierra
- Faulty Glow Plug Control Module.
- Wiring issues or loose connections.
- Corrosion or damage to electrical connectors.
- ECM software issues.
- Extreme weather conditions affecting the glow plug operation.
Symptoms of P064C 2015 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Engine misfires or rough idling.
- Reduced fuel efficiency.
- Illumination of the check engine light.
- Loss of power while driving.
How to Fix P064C 2015 GMC Sierra
- Diagnose the issue by using a scan tool to retrieve the DTC and inspect the Glow Plug Control Module and related components.
- Check the wiring and connectors for any signs of damage or corrosion and repair or replace as needed.
- Test the glow plugs to ensure they are functioning properly.
- Update the ECM software if necessary.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix P064C 2015 GMC Sierra
The cost of repairing a Glow Plug Control Module issue can vary depending on the extent of the problem and the specific components that need to be replaced. On average, the parts for this repair can range from $200 to $500, while the labor costs can be anywhere from $150 to $300. Keep in mind that these are rough estimates, and actual costs may differ based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It's recommended to consult with a professional mechanic to get a more accurate cost estimate for your specific situation.
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Frequently Asked Questions about P064C 2015 GMC Sierra Code
1. What does the OBDII code P064C mean on a 2015 GMC Sierra?
P064C indicates a malfunction in the Glow Plug Control Module, which is responsible for managing the glow plugs that assist in starting the diesel engine in cold conditions.
2. What are the common symptoms of the P064C code?
Symptoms include difficulty starting the engine, especially in cold weather, reduced engine performance, and the illumination of the Check Engine Light.
3. What causes the P064C code to appear?
Common causes include a faulty Glow Plug Control Module, wiring issues like damaged or corroded connections, or a problem with the power supply to the module.
4. Can I continue driving with the P064C code on my GMC Sierra?
While the vehicle may still be drivable, ignoring this code can lead to starting issues in cold weather and potentially worsen engine performance. It’s best to address it promptly.
5. How is the P064C code diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the Glow Plug Control Module, check related wiring and connectors, and test the power supply to the module.
6. How do you fix the P064C code on a 2015 GMC Sierra?
Repairs may include replacing the Glow Plug Control Module, repairing or replacing damaged wiring, cleaning corroded connections, or addressing electrical power supply issues.
7. How much does it cost to repair the P064C code?
Repair costs can vary but typically range from $200 to $600, depending on whether the Glow Plug Control Module needs replacement and the extent of wiring repairs.
8. Can a dead battery cause the P064C code?
A weak or dead battery can sometimes contribute to this code if it fails to supply adequate power to the Glow Plug Control Module.
9. Is the Glow Plug Control Module covered under warranty?
It depends on your vehicle’s warranty. Check with GMC or your warranty provider to see if the module is covered.
10. What happens if the P064C code is not fixed?
If left unresolved, the engine may struggle to start in cold conditions, and prolonged issues could lead to further damage to the glow plug system or reduced fuel efficiency.
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