AutoCodes – Cadillac – P1E3F Cadillac

P1E3F Cadillac Code - 14 V Power Module Read Only Memory

Quick Answer

This is an internal fault detection of the 14 V power module, also called the accessory DC power control module. Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted. 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: P1E3F Cadillac indicates 14 V Power Module Read Only Memory.
Common causes: Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted.
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 767

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
Comments
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Code P1E3F Cadillac Description

This is an internal fault detection of the 14 V power module, also called the accessory DC power control module. This fault is handled inside the 14 V power module and no external circuits are involved.

OBDII Code P1E3F Cadillac - 14 V Power Module Read Only Memory - AutoCodes.com — P1E3F Cadillac Code - 14 V Power Module Read Only Memory

What does this mean?

What are the Possible Causes of the DTC P1E3F Cadillac?

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

How to Fix the DTC P1E3F 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 P1E3F 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.

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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.