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P14A0 2014 GMC Sierra Code - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect

Quick Answer

The P14A0 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that the Charge Air Cooler Coolant Pump Status Signal Message Counter is incorrect. Common causes include Faulty charge air cooler coolant pump, Wiring issues or loose connections, Faulty sensor. 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
P14A0 2014 GMC Sierra indicates Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect.
Common causes
Common causes include Faulty charge air cooler coolant pump, Wiring issues or loose connections, Faulty sensor.
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 17, 2024
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Code P14A0 2014 GMC Sierra Description

The P14A0 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that the Charge Air Cooler Coolant Pump Status Signal Message Counter is incorrect. This code specifically relates to the charge air cooler system, which is responsible for cooling the compressed air before it enters the engine. The charge air cooler coolant pump plays a crucial role in this process by circulating coolant through the charge air cooler to dissipate heat and maintain optimal operating temperatures.

OBDII Code P14A0 2014 GMC Sierra - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 2014 GMC Sierra Code - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect

Common Causes of P14A0 2014 GMC Sierra

  1. Faulty charge air cooler coolant pump
  2. Wiring issues or loose connections
  3. Faulty sensor
  4. Communication error between pump and control module
  5. Low coolant levels or coolant leaks

Symptoms of P14A0 2014 GMC Sierra

  1. Reduced engine power
  2. Poor acceleration
  3. Engine overheating
  4. Check engine light illuminated
  5. Increased fuel consumption

How to Fix P14A0 2014 GMC Sierra

  1. Begin by conducting a visual inspection of the charge air cooler coolant pump, wiring, and connections to check for any visible damage or loose connections.
  2. Use a multimeter to test the charge air cooler coolant pump for proper voltage and continuity.
  3. Check the sensor associated with the charge air cooler system to ensure it is functioning correctly.
  4. Inspect the coolant levels and system for any leaks or issues that may be affecting the charge air cooler coolant pump.
  5. If necessary, replace the charge air cooler coolant pump, repair any wiring issues, or address any other underlying causes of the incorrect signal message counter.

Cost to Fix P14A0 2014 GMC Sierra

The cost of repairing a P14A0 DTC on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, the repair for this issue may range from $200 to $500, including parts and labor. However, it's important to note that diagnostic time and labor rates can vary significantly, so it's advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

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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 P14A0 2014 GMC Sierra Code

1. What does OBD-II code P14A0 mean on a 2014 GMC Sierra?

P14A0 indicates an issue with the Charge Air Cooler Coolant Pump Status Signal, specifically that the message counter is incorrect, suggesting a communication or operational fault with the pump.

2. What are the symptoms of code P14A0 on a 2014 GMC Sierra?

Common symptoms include reduced engine performance, overheating of the charge air cooler system, illuminated check engine light, and possible decreased fuel efficiency.

3. What causes code P14A0 to appear on a 2014 GMC Sierra?

The code can be caused by a faulty charge air cooler coolant pump, wiring issues, a malfunctioning control module, or a software issue impacting the signal communication.

4. Can I drive my 2014 GMC Sierra with code P14A0?

Driving with this code is not recommended, as it can lead to higher intake air temperatures, reduced engine performance, and potential long-term engine damage if the problem persists.

5. How do I diagnose code P14A0 on a 2014 GMC Sierra?

Start by checking the charge air cooler coolant pump for proper operation, inspect the wiring and connectors for damage or corrosion, and use a scan tool to verify the signals and communication from the pump.

6. How is code P14A0 repaired on a 2014 GMC Sierra?

Repairs may include replacing the charge air cooler coolant pump, repairing or replacing damaged wiring, updating the vehicle’s control module software, or resetting the system after repairs.

7. Is the charge air cooler coolant pump covered under warranty for a 2014 GMC Sierra?

Warranty coverage depends on your specific warranty terms and mileage. Check with your GMC dealer to confirm if this repair is covered.

8. Can a software update fix code P14A0 on a 2014 GMC Sierra?

In some cases, a software update to the engine control module (ECM) or related control systems can resolve communication issues that trigger P14A0.

9. What tools are needed to fix code P14A0 on a 2014 GMC Sierra?

You’ll typically need an OBD-II scanner, a multimeter for testing electrical components, and potentially special tools for replacing the coolant pump or repairing wiring.

10. How much does it cost to fix code P14A0 on a 2014 GMC Sierra?

Repair costs can vary depending on the exact cause, but replacing the charge air cooler coolant pump typically ranges from $300 to $600, including parts and labor.

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