AutoCodes – Chevrolet – P1E7D Chevrolet

P1E7D Chevrolet Code - Hybrid/Electric Vehicle Battery 82 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: P1E7D Chevrolet indicates Hybrid/Electric Vehicle Battery 82 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 914

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 P1E7D 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 P1E7D Chevrolet - Hybrid/Electric Vehicle Battery 82 Circuit - AutoCodes.com — P1E7D Chevrolet Code - Hybrid/Electric Vehicle Battery 82 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E7D Chevrolet?

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

How to Fix the DTC P1E7D 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 P1E7D 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 P1E7D Chevrolet Code

1. What are common symptoms of OBDII code P1E7D in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced electric propulsion, decreased fuel efficiency, and potential issues with the battery charging system.

2. What does the OBDII code P1E7D Chevrolet Hybrid/Electric Vehicle Battery 82 Circuit indicate?

- This code indicates a fault in the battery 82 circuit in a Chevrolet hybrid/electric vehicle, which is related to the high voltage battery system.

3. What are possible causes of the P1E7D code in a Chevrolet hybrid/electric vehicle?

- Possible causes include a faulty battery cell, issues with the battery management system, damaged wiring in the battery 82 circuit, or a malfunctioning battery control module.

4. How can I diagnose the P1E7D code in my Chevrolet hybrid/electric vehicle?

- Diagnosing the P1E7D code requires using a professional OBDII scanner to read the specific fault codes, conducting a visual inspection of the high voltage battery components, and testing the battery 82 circuit for continuity and voltage.

5. Is it safe to continue driving with the OBDII code P1E7D in a Chevrolet hybrid/electric vehicle?

- It is not recommended to continue driving with the P1E7D code present, as it can lead to further damage to the high voltage battery system and potentially unsafe driving conditions.

6. How can I repair the P1E7D code in my Chevrolet hybrid/electric vehicle?

- Repairing the P1E7D code may involve replacing a faulty battery cell, repairing damaged wiring in the battery 82 circuit, recalibrating the battery management system, or resetting the battery control module.

7. Can I reset the P1E7D code myself, or do I need to visit a professional mechanic?

- While you can attempt to reset the code yourself using an OBDII scanner, it is recommended to consult a professional mechanic to properly diagnose and repair the underlying issue causing the P1E7D code.

8. How much does it typically cost to repair the P1E7D code in a Chevrolet hybrid/electric vehicle?

- The cost of repairing the P1E7D code can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, especially if battery components need to be replaced.

9. Are there any preventive maintenance tips to avoid the P1E7D code in a Chevrolet hybrid/electric vehicle?

- Regularly servicing the high voltage battery system, monitoring battery health, and addressing any warning signs or symptoms promptly can help prevent the occurrence of the P1E7D code in a Chevrolet hybrid/electric vehicle.

10. How long does it typically take to repair the P1E7D code in a Chevrolet hybrid/electric vehicle?

- The repair time for the P1E7D code can vary depending on the extent of the issue and the availability of parts, but it may take anywhere from a few hours to a full day to diagnose and repair the problem.