AutoCodes – Cadillac – P1E5F Cadillac

P1E5F Cadillac Code - Hybrid/Electric Vehicle Battery 52 Circuit

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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: P1E5F Cadillac indicates Hybrid/Electric Vehicle Battery 52 Circuit.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
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 789

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 Mar 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E5F Cadillac Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1E5F Cadillac - Hybrid/Electric Vehicle Battery 52 Circuit - AutoCodes.com — P1E5F Cadillac Code - Hybrid/Electric Vehicle Battery 52 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E5F Cadillac?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1E5F 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 P1E5F 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.

Frequently Asked Questions about P1E5F Cadillac Code

1. What are common symptoms of OBDII code P1E5F on a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential issues with the hybrid/electric vehicle battery.

2. What can cause the OBDII code P1E5F to trigger in a Cadillac Hybrid/Electric Vehicle?

- The code P1E5F may be triggered by a fault in the Hybrid/Electric Vehicle Battery 52 Circuit, such as a wiring issue, a faulty battery cell, or a problem with the battery management system.

3. How serious is OBDII code P1E5F in a Cadillac Hybrid/Electric Vehicle?

- OBDII code P1E5F should be addressed promptly to prevent further damage to the hybrid/electric vehicle battery and ensure optimal performance of the vehicle's hybrid system.

4. Can I continue driving my Cadillac Hybrid/Electric Vehicle with the OBDII code P1E5F present?

- It is not recommended to continue driving the vehicle with the code P1E5F present, as it can lead to reduced efficiency and potential damage to the hybrid/electric vehicle battery.

5. How can I diagnose and repair OBDII code P1E5F in my Cadillac Hybrid/Electric Vehicle?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault codes and performing a thorough inspection of the hybrid/electric vehicle battery components. Repair may involve replacing damaged wiring, faulty battery cells, or addressing issues with the battery management system.

6. Are there any DIY tips for troubleshooting OBDII code P1E5F in a Cadillac Hybrid/Electric Vehicle?

- DIY troubleshooting tips include checking for loose or damaged wiring connections, inspecting the battery terminals for corrosion, and ensuring proper battery cooling and ventilation.

7. How much does it cost to repair OBDII code P1E5F in a Cadillac Hybrid/Electric Vehicle?

- The cost of repairing OBDII code P1E5F can vary depending on the underlying cause of the issue. It is recommended to consult with a professional technician for an accurate diagnosis and cost estimate.

8. Can resetting the OBDII code P1E5F in a Cadillac Hybrid/Electric Vehicle fix the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the code to trigger. It is important to diagnose and address the root cause of the issue.

9. How long does it take to repair OBDII code P1E5F in a Cadillac Hybrid/Electric Vehicle?

- The repair time for OBDII code P1E5F can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a day to complete the repair.

10. Is it safe to drive a Cadillac Hybrid/Electric Vehicle with the Hybrid/Electric Vehicle Battery 52 Circuit issue?

- It is not recommended to drive the vehicle with a known issue in the Hybrid/Electric Vehicle Battery 52 Circuit, as it can affect the vehicle's performance and safety. It is best to have the issue diagnosed and repaired by a qualified technician.