Engine-CodesGeneric – P064C

P064C Code - Glow Plug Control Module

Quick Answer

The P064C diagnostic trouble code indicates a problem with the Glow Plug Control Module in a vehicle. Common causes include Faulty Glow Plug Control Module, Corrosion or loose connections in the wiring harness, Issues with the glow plugs themselves. 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 indicates Glow Plug Control Module.
Common causes
Common causes include Faulty Glow Plug Control Module, Corrosion or loose connections in the wiring harness, Issues with the glow plugs themselves.
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.
Table of contents Created and updated by William Orellana on Sep 05, 2024
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Code P064C Description

The P064C diagnostic trouble code indicates a problem with the Glow Plug Control Module in a vehicle. The Glow Plug Control Module is responsible for regulating the operation of the glow plugs, which are essential for starting a diesel engine, especially in cold weather. When the engine is cold, the glow plugs heat up to help ignite the air-fuel mixture. If the Glow Plug Control Module is malfunctioning, it can lead to issues with starting the engine, reduced fuel efficiency, and potential damage to other engine components.

OBDII Code P064C - Glow Plug Control Module
P064C Code - Glow Plug Control Module

Common Causes of P064C

  1. Faulty Glow Plug Control Module
  2. Corrosion or loose connections in the wiring harness
  3. Issues with the glow plugs themselves
  4. Electrical system problems
  5. Software or programming issues

Symptoms of P064C

  1. Difficulty starting the engine, especially in cold weather
  2. Rough idling or misfiring
  3. Decreased fuel efficiency
  4. Illuminated check engine light
  5. Engine stalling or lack of power

How to Fix P064C

  1. Diagnose the issue using a scan tool to confirm the P064C code and identify the specific problem.
  2. Inspect the Glow Plug Control Module, wiring harness, and glow plugs for any visible damage or corrosion.
  3. Test the glow plugs to ensure they are functioning properly.
  4. Repair or replace any faulty components, such as the Glow Plug Control Module or wiring harness.
  5. Clear the code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P064C

The typical repair costs for addressing a P064C code can range from $200 to $500, including parts and labor. However, actual costs may vary depending on the vehicle make and model, the location of the repair shop, and the extent of the issue. It's recommended to get a specific estimate from a qualified mechanic before proceeding with the repairs.

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Code P064C Information for Specific Makes

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.

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