AutoCodes – GMC – P1E5F GMC

P1E5F GMC 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 GMC 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 727

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

What does this mean?

What are the Possible Causes of the DTC P1E5F GMC?

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

How to Fix the DTC P1E5F GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code P1E5F in a GMC Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential issues with battery charging.

2. What does the OBDII code P1E5F in a GMC Hybrid/Electric Vehicle indicate?

- This code specifically points to a fault in the Hybrid/Electric Vehicle Battery 52 Circuit, signaling a potential issue with the vehicle's battery system.

3. What are the possible causes of OBDII code P1E5F in a GMC Hybrid/Electric Vehicle?

- Possible causes may include a malfunctioning battery cell, faulty battery management system, wiring issues in the circuit, or a problem with the battery control module.

4. How can I diagnose the OBDII code P1E5F in my GMC Hybrid/Electric Vehicle?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting the battery components for visible damage, and testing the circuit for continuity and voltage levels.

5. Is it safe to continue driving with OBDII code P1E5F present in a GMC Hybrid/Electric Vehicle?

- It is recommended to address the issue promptly to prevent further damage to the battery system and ensure the vehicle operates optimally.

6. Can I repair OBDII code P1E5F in my GMC Hybrid/Electric Vehicle myself?

- While some basic troubleshooting steps can be taken, diagnosing and repairing issues related to the Hybrid/Electric Vehicle Battery 52 Circuit may require specialized knowledge and tools, so seeking professional assistance is advised.

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

- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred to a couple of thousand dollars, including parts and labor.

8. Are there any preventive maintenance tips to avoid encountering OBDII code P1E5F in a GMC Hybrid/Electric Vehicle?

- Regularly servicing the hybrid system, monitoring battery health, and addressing any warning signs promptly can help prevent issues that lead to this code.

9. Can a faulty sensor trigger OBDII code P1E5F in a GMC Hybrid/Electric Vehicle?

- While possible, the code is more commonly associated with problems in the Hybrid/Electric Vehicle Battery 52 Circuit itself rather than sensor malfunctions.

10. How long does it typically take to repair OBDII code P1E5F in a GMC Hybrid/Electric Vehicle?

- The repair time can vary based on the complexity of the issue and availability of parts, but it may range from a few hours to a day or more, especially if extensive diagnostics are needed.