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Engine-Codes – Chevrolet – P064C 2015 Chevrolet Silverado

P064C 2015 Chevrolet Silverado Code - Glow Plug Control Module

Quick Answer

The P064C diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado refers to a problem with the Glow Plug Control Module. Common causes include Faulty Glow Plug Control Module: The module itself may be malfunctioning and not communicating properly with the ECM, Wiring Issues: Corrosion, damage, or loose connections in the wiring harness can disrupt communication between the modules, ECM Malfunction: A problem with the engine control module can prevent proper communication with the glow plug control module. 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 Chevrolet Silverado indicates Glow Plug Control Module.
Common causes
Common causes include Faulty Glow Plug Control Module: The module itself may be malfunctioning and not communicating properly with the ECM, Wiring Issues: Corrosion, damage, or loose connections in the wiring harness can disrupt communication between the modules, ECM Malfunction: A problem with the engine control module can prevent proper communication with the glow plug control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P064C 2015 Chevrolet Silverado Description

The P064C diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado refers to a problem with the Glow Plug Control Module. The Glow Plug Control Module is a crucial component in diesel engines that helps to heat the glow plugs, which are used to assist in starting the engine, especially in cold weather conditions. When this module malfunctions, it can lead to issues with starting the engine, reduced fuel efficiency, and overall poor performance.

OBDII Code P064C 2015 Chevrolet Silverado - Glow Plug Control Module
P064C 2015 Chevrolet Silverado Code - Glow Plug Control Module

Common Causes of P064C 2015 Chevrolet Silverado

  1. Faulty Glow Plug Control Module: The module itself may be malfunctioning and not communicating properly with the ECM.
  2. Wiring Issues: Corrosion, damage, or loose connections in the wiring harness can disrupt communication between the modules.
  3. ECM Malfunction: A problem with the engine control module can prevent proper communication with the glow plug control module.
  4. Electrical Issues: Voltage irregularities or short circuits in the electrical system can also trigger this code.

Symptoms of P064C 2015 Chevrolet Silverado

  1. Hard starting: Difficulty starting the engine, especially in cold weather.
  2. Reduced fuel efficiency: The vehicle may experience decreased fuel efficiency due to inefficient combustion.
  3. Engine misfires: The engine may misfire or run rough due to improper heating of the glow plugs.
  4. Check Engine Light: The Check Engine Light may illuminate on the dashboard to indicate a problem with the glow plug control module.

How to Fix P064C 2015 Chevrolet Silverado

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the fault codes and pinpoint the exact cause of the problem.
  2. Inspect wiring: Check the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test Glow Plug Control Module: Test the glow plug control module to determine if it is functioning correctly. Replace if necessary.
  4. Check ECM: Inspect the engine control module for any faults or malfunctions. Repair or replace as needed.
  5. Clear codes: After completing the repairs, clear the fault codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P064C 2015 Chevrolet Silverado

The cost of repairing a Glow Plug Control Module issue in a 2015 Chevrolet Silverado can vary depending on the extent of the problem and the cost of parts and labor. On average, the cost of replacing a Glow Plug Control Module can range from $200 to $500, including parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can vary, with rates typically ranging from $80 to $150 per hour. Rates may be higher at dealerships or in metropolitan areas, while independent shops may charge less. It's advisable to obtain quotes from local repair shops for a more accurate estimate.

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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 P064C 2015 Chevrolet Silverado Code

1. What does the OBDII code P064C mean on a 2015 Chevrolet Silverado?

P064C indicates an issue with the Glow Plug Control Module, which manages the operation of the glow plugs used to aid in cold engine starts for diesel engines.

2. What are common symptoms of the P064C code in a 2015 Chevy Silverado?

Symptoms include difficulty starting the engine in cold weather, poor engine performance, reduced fuel efficiency, and an illuminated check engine light.

3. What causes the P064C code to appear?

Common causes include a faulty Glow Plug Control Module, damaged wiring or connectors, a blown fuse, or issues with the power or ground circuits.

4. Can I drive my 2015 Silverado with the P064C code?

While the truck may still run, driving with this code can lead to hard starts in cold weather and potentially cause further damage to the glow plug system.

5. How can I diagnose the P064C code in my Silverado?

Diagnosis typically involves inspecting the Glow Plug Control Module and its wiring, checking for blown fuses, and using a multimeter to confirm proper voltage and ground.

6. How do you fix the P064C code in a 2015 Chevy Silverado?

Repairs may include replacing the Glow Plug Control Module, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing a blown fuse.

7. How much does it cost to fix the P064C code on a Silverado?

Repair costs can vary but typically range from $200 to $600, depending on whether the module or wiring needs replacement and labor charges.

8. Can a software issue cause the P064C code?

Yes, in some cases, outdated or corrupted engine control module (ECM) software can trigger the P064C code. A software update may be required.

9. How can I prevent the P064C code from returning?

Regular maintenance, inspecting wiring and connectors for damage, and addressing electrical issues promptly can help prevent this code from recurring.

10. Does the P064C code affect emissions?

While it may not directly affect emissions, a malfunctioning glow plug system can lead to incomplete combustion, which could indirectly increase emissions over time.

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