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Engine-Codes – GMC – P1F44 GMC

P1F44 GMC Code - Hybrid/EV Electronics Coolant Pump Enable Circuit Low Voltage

Quick Answer

The P1F44 GMC code indicates a problem with the Hybrid/EV Electronics Coolant Pump Enable Circuit experiencing low voltage. Common causes include Faulty coolant pump, Wiring issues or damaged connectors in the enable circuit, Low battery voltage affecting the enable circuit. 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
P1F44 GMC indicates Hybrid/EV Electronics Coolant Pump Enable Circuit Low Voltage.
Common causes
Common causes include Faulty coolant pump, Wiring issues or damaged connectors in the enable circuit, Low battery voltage affecting the enable circuit.
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 13, 2024
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Code P1F44 GMC Description

The P1F44 GMC code indicates a problem with the Hybrid/EV Electronics Coolant Pump Enable Circuit experiencing low voltage. In hybrid and electric vehicles, the coolant pump plays a crucial role in maintaining the optimal operating temperature of the vehicle's electronics system. When this circuit is not receiving enough voltage, it can lead to various issues that can affect the vehicle's performance and efficiency.

OBDII Code P1F44 GMC - Hybrid/EV Electronics Coolant Pump Enable Circuit Low Voltage
P1F44 GMC Code - Hybrid/EV Electronics Coolant Pump Enable Circuit Low Voltage

Common Causes of P1F44 GMC

  1. Faulty coolant pump.
  2. Wiring issues or damaged connectors in the enable circuit.
  3. Low battery voltage affecting the enable circuit.
  4. Malfunctioning hybrid/EV control module.
  5. Software issues or glitches in the electronics system.

Symptoms of P1F44 GMC

  1. Illumination of the check engine light on the dashboard.
  2. Overheating of the electronics system.
  3. Reduced performance or efficiency of the vehicle.
  4. Unusual noises coming from the coolant pump.
  5. In some cases, the vehicle may go into a reduced power mode to prevent further damage.

How to Fix P1F44 GMC

  1. Begin by conducting a thorough inspection of the coolant pump, wiring, and connectors to identify any visible damage or issues.
  2. Test the voltage levels in the enable circuit to determine if it is within the specified range.
  3. Check the battery voltage and ensure it is at the correct level to power the enable circuit.
  4. If necessary, replace the coolant pump or repair any damaged wiring or connectors in the enable circuit.
  5. Clear the diagnostic trouble codes from the vehicle's system and test drive to ensure the issue has been resolved.

Cost to Fix P1F44 GMC

The typical repair costs for addressing the P1F44 GMC code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, repairing or replacing the coolant pump, wiring, or connectors can range from $200 to $500, including parts and labor. However, it is essential to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on 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.

Frequently Asked Questions about P1F44 GMC Code

1. What are the common symptoms of OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- Common symptoms include poor engine performance, overheating, illumination of the check engine light, and potential issues with the cooling system.

2. What can cause the OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- The code P1F44 is typically triggered by a malfunction in the electronics coolant pump enable circuit, often caused by wiring issues, faulty connectors, or a defective coolant pump.

3. How does the low voltage in the Hybrid/EV electronics coolant pump enable circuit impact the vehicle?

- The low voltage can prevent the coolant pump from operating efficiently, leading to inadequate cooling of the hybrid or electric components and potentially causing damage to the vehicle's systems.

4. Are there any safety concerns associated with OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- Yes, inadequate cooling due to the low voltage in the coolant pump enable circuit can result in overheating of critical components, posing a risk of damage to the vehicle and potentially causing safety hazards.

5. What are some DIY repair tips for addressing OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- DIY repair tips include checking the wiring and connectors for any visible damage, testing the coolant pump for functionality, and ensuring proper electrical connections are secure.

6. Can driving with OBDII code P1F44 in a GMC Hybrid/EV vehicle cause further damage?

- Continuing to drive with code P1F44 can lead to increased risk of overheating, potential damage to other vehicle components, and reduced overall performance of the hybrid or electric system.

7. How can a professional mechanic diagnose OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- A professional mechanic can use a diagnostic scanner to read the code, perform electrical tests on the coolant pump circuit, inspect wiring and connectors, and conduct a thorough cooling system evaluation.

8. Is it safe to reset the OBDII code P1F44 in a GMC Hybrid/EV vehicle without addressing the underlying issue?

- It is not recommended to reset the code without addressing the root cause, as the problem may persist and lead to further complications or potential safety hazards.

9. Can extreme weather conditions affect the occurrence of OBDII code P1F44 in a GMC Hybrid/EV vehicle?

- Yes, extreme temperatures can impact the performance of the coolant pump and the electronics coolant system, potentially exacerbating issues related to low voltage in the enable circuit.

10. How much does it typically cost to repair OBDII code P1F44 in a GMC Hybrid/EV vehicle at a professional auto repair shop?

- The cost of repairing code P1F44 can vary depending on the extent of the issue, but it may involve expenses for parts replacement, labor, diagnostic tests, and any additional repairs needed to ensure the proper functioning of the cooling system.

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