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Engine-Codes – GMC – P1E44 GMC

P1E44 GMC Code - 14 Volt Power Module System High Voltage

Quick Answer

The P1E44 GMC code indicates a problem with the 14 Volt Power Module System High Voltage in the vehicle. Common causes include Faulty voltage regulator, Malfunctioning power module, Wiring issues or shorts. 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
P1E44 GMC indicates 14 Volt Power Module System High Voltage.
Common causes
Common causes include Faulty voltage regulator, Malfunctioning power module, Wiring issues or shorts.
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 P1E44 GMC Description

The P1E44 GMC code indicates a problem with the 14 Volt Power Module System High Voltage in the vehicle. This system is responsible for regulating the voltage supplied to various components in the vehicle, ensuring they receive the correct amount of power to function properly. When this system detects that the voltage is too high, it triggers the P1E44 code.

OBDII Code P1E44 GMC - 14 Volt Power Module System High Voltage
P1E44 GMC Code - 14 Volt Power Module System High Voltage

Common Causes of P1E44 GMC

  1. Faulty voltage regulator
  2. Malfunctioning power module
  3. Wiring issues or shorts
  4. Overcharging battery
  5. Faulty alternator

Symptoms of P1E44 GMC

  1. Check engine light illuminated on the dashboard
  2. Erratic behavior of electrical components (lights flickering, radio cutting out)
  3. Difficulty starting the vehicle
  4. Reduced fuel efficiency
  5. Vehicle going into limp mode

How to Fix P1E44 GMC

  1. Diagnose the issue using a diagnostic scanner to confirm the P1E44 code and identify the specific component causing the high voltage.
  2. Inspect the voltage regulator, power module, wiring, battery, and alternator for any signs of damage or malfunction.
  3. Replace the faulty component, whether it be the voltage regulator, power module, wiring, battery, or alternator.
  4. Clear the error code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
  5. Perform a final check to verify that the voltage levels are within the normal range and that all electrical components are functioning properly.

Cost to Fix P1E44 GMC

The typical repair costs for addressing a P1E44 GMC code can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for this issue can range from $200 to $500, including parts and labor. However, it's important to note that the cost can be higher if more expensive components need to be replaced or if additional repairs are required. Additionally, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto 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 P1E44 GMC Code

1. What are common symptoms of OBDII code P1E44 GMC (14 Volt Power Module System High Voltage)?

The common symptoms of this code may include illuminated warning lights on the dashboard, reduced vehicle performance, and potential issues with the electrical system.

2. What are possible causes of OBDII code P1E44 GMC?

Possible causes of this code include a faulty 14-volt power module, damaged wiring or connectors in the power module system, or issues with the voltage regulation system.

3. How serious is OBDII code P1E44 GMC?

This code should be addressed promptly to prevent potential damage to the vehicle's electrical system. Ignoring the issue can lead to more severe problems and affect the overall performance of the vehicle.

4. Can I continue driving with OBDII code P1E44 GMC active?

It is not recommended to continue driving with this code active, as it can impact the vehicle's performance and safety. It's best to address the issue as soon as possible.

5. How can I diagnose OBDII code P1E44 GMC?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the error code and then performing a thorough inspection of the 14-volt power module system, wiring, and connectors for any visible damage.

6. What repairs are typically needed for OBDII code P1E44 GMC?

Common repairs for this code may include replacing the faulty 14-volt power module, repairing or replacing damaged wiring or connectors, and resetting the error code with a diagnostic scanner.

7. Can a DIY enthusiast fix OBDII code P1E44 GMC at home?

While some basic troubleshooting steps can be performed at home, diagnosing and repairing this code may require specialized tools and expertise. It is recommended to seek assistance from a professional mechanic.

8. How much does it cost to fix OBDII code P1E44 GMC?

The cost of fixing this code can vary depending on the extent of the issue, the required repairs, and the labor rates of the mechanic. It's advisable to obtain quotes from different repair shops.

9. How can I prevent OBDII code P1E44 GMC from recurring?

Regular maintenance of the vehicle's electrical system, including checking the power module and wiring for any signs of damage, can help prevent this code from recurring in the future.

10. Is OBDII code P1E44 GMC a common issue in GMC vehicles?

While this specific code may not be as common as others, issues related to the 14-volt power module system can occur in GMC vehicles, especially in older models or those with high mileage.

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