P064C 2017 GMC Sierra Code - Glow Plug Control Module
Quick Answer
The P064C diagnostic trouble code (DTC) specifically pertains to the Glow Plug Control Module in the 2017 GMC Sierra, which is crucial for the operation of diesel engines. Common causes include Faulty Glow Plug Control Module: The control module itself may be defective or malfunctioning, Wiring Issues: Damaged or corroded wiring in the glow plug circuit can disrupt communication, Faulty Glow Plugs: Individual glow plugs may be burned out or shorted, affecting the overall 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
- P064C 2017 GMC Sierra indicates Glow Plug Control Module.
- Common causes
- Common causes include Faulty Glow Plug Control Module: The control module itself may be defective or malfunctioning, Wiring Issues: Damaged or corroded wiring in the glow plug circuit can disrupt communication, Faulty Glow Plugs: Individual glow plugs may be burned out or shorted, affecting the overall 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 P064C 2017 GMC Sierra Description
The P064C diagnostic trouble code (DTC) specifically pertains to the Glow Plug Control Module in the 2017 GMC Sierra, which is crucial for the operation of diesel engines. This code indicates that the Engine Control Module (ECM) has detected an issue with the glow plug control circuit, which is responsible for managing the glow plugs that preheat the engine's combustion chambers for easier starting in cold conditions.
Common Causes of P064C 2017 GMC Sierra
- Faulty Glow Plug Control Module: The control module itself may be defective or malfunctioning.
- Wiring Issues: Damaged or corroded wiring in the glow plug circuit can disrupt communication.
- Faulty Glow Plugs: Individual glow plugs may be burned out or shorted, affecting the overall system.
- Poor Connections: Loose or corroded connectors can lead to intermittent signals and failures.
- ECM Malfunction: A failure in the Engine Control Module can also trigger this code, as it may not process signals correctly.
Symptoms of P064C 2017 GMC Sierra
- Hard Starting: Difficulty starting the engine, especially in cold weather conditions.
- Rough Idling: The engine may run unevenly or exhibit a rough idle after starting.
- Increased Exhaust Emissions: Higher levels of smoke or emissions from the exhaust, indicating incomplete combustion.
- Check Engine Light: The illumination of the check engine light on the dashboard, indicating a fault in the glow plug system.
- Decreased Fuel Efficiency: A noticeable drop in fuel economy due to inefficient combustion.
How to Fix P064C 2017 GMC Sierra
- Diagnostic Testing: Begin with a thorough diagnostic scan to confirm the P064C code and check for any related codes.
- Visual Inspection: Inspect the glow plug control module, wiring, and connectors for any signs of damage, corrosion, or loose connections.
- Test Glow Plugs: Use a multimeter to test each glow plug for continuity and proper resistance; replace any faulty plugs.
- Replace Control Module: If the control module is determined to be defective, replace it with a new unit and ensure proper installation.
- Clear Codes and Test Drive: After repairs, clear the diagnostic codes and perform a test drive to ensure the issue is resolved and the check engine light does not reappear.
Cost to Fix P064C 2017 GMC Sierra
The typical repair costs for addressing a P064C code can range from $200 to $800, depending on the specific repairs needed. This estimate includes parts such as a new glow plug control module (which can cost between $100 and $400) and labor costs. Labor rates vary widely based on location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour; however, rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate. Additionally, if multiple components need replacement (like several glow plugs), the total cost could increase significantly.
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Frequently Asked Questions about P064C 2017 GMC Sierra Code
1. What is the typical symptom of OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module?
The typical symptom of OBDII code P064C in a 2017 GMC Sierra is the illumination of the check engine light on the dashboard.
2. What are the possible causes of OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module?
Possible causes of OBDII code P064C in a 2017 GMC Sierra include a faulty glow plug control module, wiring issues, or a malfunctioning temperature sensor.
3. How can I diagnose the OBDII code P064C in my 2017 GMC Sierra related to the Glow Plug Control Module?
Diagnosing OBDII code P064C involves using a diagnostic scanner to retrieve the code, checking the wiring and connections related to the glow plug control module, and testing the temperature sensor for proper functionality.
4. Is it safe to continue driving my 2017 GMC Sierra with OBDII code P064C related to the Glow Plug Control Module illuminated?
It is not recommended to drive your 2017 GMC Sierra with the check engine light illuminated due to OBDII code P064C. Continuing to drive the vehicle may lead to poor engine performance or further damage.
5. How can I repair OBDII code P064C in my 2017 GMC Sierra related to the Glow Plug Control Module?
Repairing OBDII code P064C involves replacing the faulty glow plug control module, repairing any damaged wiring, and ensuring the temperature sensor is functioning correctly.
6. Can I reset the OBDII code P064C in my 2017 GMC Sierra related to the Glow Plug Control Module without fixing the underlying issue?
Resetting the OBDII code P064C without fixing the underlying issue will only temporarily turn off the check engine light. It is important to address the root cause of the code to prevent further issues.
7. How much does it typically cost to repair OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module?
The cost of repairing OBDII code P064C in a 2017 GMC Sierra can vary depending on the extent of the issue, but it may range from $200 to $500, including parts and labor.
8. Can a DIY enthusiast fix OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module?
While some DIY enthusiasts may have the skills to address OBDII code P064C, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.
9. Will OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module affect fuel efficiency?
If left unresolved, OBDII code P064C can potentially affect fuel efficiency in a 2017 GMC Sierra due to improper glow plug operation impacting engine performance.
10. How long does it typically take to repair OBDII code P064C in a 2017 GMC Sierra related to the Glow Plug Control Module?
The repair time for OBDII code P064C in a 2017 GMC Sierra varies based on the specific issue, but it may take a few hours to a full day for a mechanic to diagnose and fix the problem.
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