AutoCodes – Chevrolet – P1E5B Chevrolet

P1E5B Chevrolet Code - Hybrid/Electric Vehicle Battery 48 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: P1E5B Chevrolet indicates Hybrid/Electric Vehicle Battery 48 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 952

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 P1E5B Chevrolet 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 P1E5B Chevrolet - Hybrid/Electric Vehicle Battery 48 Circuit - AutoCodes.com — P1E5B Chevrolet Code - Hybrid/Electric Vehicle Battery 48 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E5B Chevrolet?

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

How to Fix the DTC P1E5B Chevrolet?

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 P1E5B Chevrolet 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 P1E5B Chevrolet Code

1. What does OBDII code P1E5B for Chevrolet Hybrid/Electric Vehicle Battery 48 Circuit mean?

This code indicates an issue with the 48-volt circuit within the hybrid/electric vehicle battery system.

2. What are the common symptoms of OBDII code P1E5B in a Chevrolet hybrid/electric vehicle?

Common symptoms include poor battery performance, reduced fuel efficiency, and potential issues with starting or charging the vehicle.

3. What are the possible causes of OBDII code P1E5B in a Chevrolet hybrid/electric vehicle?

Causes can include a faulty battery pack, damaged wiring or connectors in the 48-volt circuit, or issues with the battery management system.

4. How can I diagnose the OBDII code P1E5B in my Chevrolet hybrid/electric vehicle?

Diagnosing this code usually requires specialized equipment and knowledge of hybrid/electric vehicle systems. It's recommended to consult a professional mechanic or dealership.

5. What are some repair tips for fixing OBDII code P1E5B in a Chevrolet hybrid/electric vehicle?

Repair tips may include checking and repairing any damaged wiring or connectors, testing the battery pack and related components, and resetting the fault code after repairs are made.

6. Is it safe to continue driving a Chevrolet hybrid/electric vehicle with OBDII code P1E5B present?

It's not recommended to continue driving the vehicle with this fault code active, as it can lead to further damage to the battery system and potentially affect the vehicle's performance and safety.

7. Can I reset the OBDII code P1E5B in my Chevrolet hybrid/electric vehicle on my own?

While you can attempt to reset the code using an OBDII scanner, it's important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to repair OBDII code P1E5B in a Chevrolet hybrid/electric vehicle?

Repair costs can vary depending on the specific cause of the code and the extent of the repairs needed. It's best to get a professional diagnosis for an accurate estimate.

9. Are there any recalls or technical service bulletins related to OBDII code P1E5B in Chevrolet hybrid/electric vehicles?

It's recommended to check with Chevrolet dealerships or online databases for any relevant recalls or technical service bulletins related to this specific fault code.

10. How can I prevent OBDII code P1E5B from occurring in my Chevrolet hybrid/electric vehicle in the future?

Regular maintenance, such as checking the battery system, keeping connections clean and secure, and addressing any issues promptly, can help prevent this fault code from appearing.