Engine-CodesGMC – P103D 2014 GMC Sierra

P103D 2014 GMC Sierra Code - Engine Coolant Pump Control Signal Message Counter Incorrect

Quick Answer

The diagnostic trouble code P103D for a 2014 GMC Sierra indicates that the Engine Coolant Pump Control Signal Message Counter is incorrect. Common causes include Faulty engine coolant pump, Malfunctioning engine control module (ECM), Wiring or connection issues. 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
P103D 2014 GMC Sierra indicates Engine Coolant Pump Control Signal Message Counter Incorrect.
Common causes
Common causes include Faulty engine coolant pump, Malfunctioning engine control module (ECM), Wiring or connection issues.
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 16, 2024
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Code P103D 2014 GMC Sierra Description

The diagnostic trouble code P103D for a 2014 GMC Sierra indicates that the Engine Coolant Pump Control Signal Message Counter is incorrect. This code is related to the engine coolant pump, which plays a crucial role in maintaining the engine's temperature within the optimal range. The engine coolant pump circulates coolant through the engine and radiator to prevent overheating. The control signal message counter being incorrect suggests a communication issue between the engine control module (ECM) and the coolant pump.

OBDII Code P103D 2014 GMC Sierra - Engine Coolant Pump Control Signal Message Counter Incorrect
P103D 2014 GMC Sierra Code - Engine Coolant Pump Control Signal Message Counter Incorrect

Common Causes of P103D 2014 GMC Sierra

  1. Faulty engine coolant pump
  2. Malfunctioning engine control module (ECM)
  3. Wiring or connection issues
  4. Sensor malfunction
  5. Cooling system blockage

Symptoms of P103D 2014 GMC Sierra

  1. Engine overheating
  2. Decreased fuel efficiency
  3. Illuminated check engine light
  4. Engine running rough or stalling
  5. Coolant leaks

How to Fix P103D 2014 GMC Sierra

  1. Diagnose the issue using a diagnostic scanner to retrieve the trouble code and identify the specific problem.
  2. Inspect the engine coolant pump, ECM, wiring, and sensors for any visible damage or malfunctions.
  3. Test the coolant pump and related components to ensure they are functioning correctly.
  4. Replace the faulty engine coolant pump, ECM, wiring, or sensors as needed.
  5. Clear the trouble code from the ECM and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P103D 2014 GMC Sierra

The cost of repairing the Engine Coolant Pump Control Signal Message Counter Incorrect code can vary depending on the specific cause of the issue and the cost of parts and labor. Generally, the repair costs for this type of issue can range from $200 to $800. It's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and the extent of the repair needed can also impact the overall cost. It's recommended to obtain a detailed estimate from a qualified mechanic or repair shop to determine the exact cost for your specific situation.

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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.

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