AutoCodes – Chevrolet – P1E7B Chevrolet

P1E7B Chevrolet Code - Hybrid/Electric Vehicle Battery 80 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: P1E7B Chevrolet indicates Hybrid/Electric Vehicle Battery 80 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 829

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 P1E7B 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 P1E7B Chevrolet - Hybrid/Electric Vehicle Battery 80 Circuit - AutoCodes.com — P1E7B Chevrolet Code - Hybrid/Electric Vehicle Battery 80 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E7B Chevrolet?

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

How to Fix the DTC P1E7B 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 P1E7B 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 P1E7B Chevrolet Code

1. What does the OBDII code P1E7B for Chevrolet Hybrid/Electric Vehicle Battery 80 Circuit indicate?

This code indicates a malfunction in the 80th battery circuit of a Chevrolet hybrid or electric vehicle.

2. What are common symptoms of the P1E7B code in a Chevrolet hybrid or electric vehicle?

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

3. What are possible causes of the P1E7B code in a Chevrolet hybrid or electric vehicle?

Possible causes include damaged wiring in the 80th battery circuit, faulty battery connections, or issues with the battery management system.

4. How can I diagnose the P1E7B code in my Chevrolet hybrid or electric vehicle?

Diagnosing this code typically requires specialized diagnostic equipment to test the battery circuit, inspect wiring connections, and analyze data from the battery management system.

5. Can I continue driving my Chevrolet hybrid or electric vehicle with the P1E7B code present?

It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the battery system and affect overall vehicle performance.

6. How can I repair the P1E7B code in my Chevrolet hybrid or electric vehicle?

Repairing this code may involve repairing or replacing damaged wiring, ensuring proper battery connections, and resetting the battery management system.

7. Is the P1E7B code a serious issue in a Chevrolet hybrid or electric vehicle?

Yes, this code should be addressed promptly to prevent potential damage to the battery system and ensure the vehicle operates efficiently.

8. Can I reset the P1E7B code in my Chevrolet hybrid or electric vehicle myself?

While you can attempt to clear the code using an OBDII scanner, it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

9. Are there any maintenance tips to prevent the P1E7B code in a Chevrolet hybrid or electric vehicle?

Regularly inspecting the battery system, ensuring proper charging habits, and addressing any warning signs promptly can help prevent issues leading to this code.

10. How much does it typically cost to repair the P1E7B code in a Chevrolet hybrid or electric vehicle?

The cost of repairing this code can vary depending on the extent of the issue, parts needed, and labor costs, so it is recommended to consult with a professional technician for an accurate estimate.