AutoCodes – Cadillac – P1E44 Cadillac

P1E44 Cadillac Code - 14 Volt Power Module System High Voltage

Quick Answer

The accessory DC power control module, also referred to as the 14 V power module, constantly monitors system input and output voltage. Common causes include Faulty 14 Volt Power Module, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module circuit poor electrical connection. 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 Cadillac indicates 14 Volt Power Module System High Voltage.
Common causes: Common causes include Faulty 14 Volt Power Module, 14 Volt Power Module harness is open or shorted, 14 Volt Power Module circuit poor electrical connection.
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.

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Code Popularity 804

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E44 Cadillac Description

The accessory DC power control module, also referred to as the 14 V power module, constantly monitors system input and output voltage. This sensor is internal to the 14 V power module and is not serviced separately from the control module.

OBDII Code P1E44 Cadillac - 14 Volt Power Module System High Voltage - AutoCodes.com — P1E44 Cadillac Code - 14 Volt Power Module System High Voltage

What does this mean?

What are the Possible Causes of the DTC P1E44 Cadillac?

Faulty 14 Volt Power Module
14 Volt Power Module harness is open or shorted
14 Volt Power Module circuit poor electrical connection

How to Fix the DTC P1E44 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1E44 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1E44 Cadillac code?

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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 Cadillac Code

1. What does the OBDII code P1E44 mean for a Cadillac?

P1E44 indicates an issue with the 14-volt power module system, specifically detecting high voltage in the system.

2. What are the common symptoms of code P1E44 on a Cadillac?

Symptoms may include the check engine light turning on, charging system warnings, reduced fuel economy, or electrical accessories malfunctioning.

3. What causes the P1E44 code to appear?

Common causes include a faulty 14-volt power module, issues with the battery energy control module, wiring problems, or a defective alternator.

4. Can a low or failing battery trigger the P1E44 code?

Yes, a low or failing 12-volt battery can cause irregular voltage readings, potentially triggering this code.

5. How is the P1E44 code diagnosed?

A technician will use a scan tool to check live data, inspect wiring and connections for damage, and test the 14-volt power module and related components.

6. Is it safe to drive with the P1E44 code active?

Driving with this code is not recommended, as it may indicate electrical issues that could lead to vehicle stalling or other failures.

7. What repairs are typically needed to fix the P1E44 code?

Repairs may include replacing the 14-volt power module, fixing or replacing damaged wiring, reprogramming the control module, or addressing battery issues.

8. Can a software update fix the P1E44 code on a Cadillac?

In some cases, a software update for the battery energy control module may resolve the issue if it is linked to incorrect calibration.

9. How much does it cost to repair a P1E44 code?

The cost varies depending on the exact issue but can range from $200 to $1,000 or more, depending on whether the 14-volt power module or other major components need replacement.

10. Can I clear the P1E44 code without fixing the problem?

Clearing the code without addressing the root cause will likely result in the code returning, as the underlying issue will persist.