AutoCodes – Generic – P1E7E

P1E7E Code - Hybrid/Electric Vehicle Battery 83 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: P1E7E indicates Hybrid/Electric Vehicle Battery 83 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 779

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 P1E7E 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 P1E7E - Hybrid/Electric Vehicle Battery 83 Circuit - AutoCodes.com — P1E7E Code - Hybrid/Electric Vehicle Battery 83 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E7E?

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

How to Fix the DTC P1E7E?

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 P1E7E 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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Information for Specific Makes

P1E7E Buick — Hybrid/Electric Vehicle Battery 83 Circuit
P1E7E Cadillac — Hybrid/Electric Vehicle Battery 83 Circuit
P1E7E Chevrolet — Hybrid/Electric Vehicle Battery 83 Circuit
P1E7E GMC — Hybrid/Electric Vehicle Battery 83 Circuit
P1E7E Saturn — Hybrid/Electric Vehicle Battery 83 Circuit

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 P1E7E Code

1. What are the common symptoms of OBDII code P1E7E related to the Hybrid/Electric Vehicle Battery 83 Circuit?

- Common symptoms include reduced electric vehicle range, poor battery performance, and difficulty charging the battery.

2. What are the possible causes of OBDII code P1E7E indicating an issue with the Hybrid/Electric Vehicle Battery 83 Circuit?

- Causes may include a faulty battery cell, wiring issues in the battery circuit, or problems with the battery management system.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 83 Circuit issue associated with OBDII code P1E7E?

- Diagnose by performing a thorough inspection of the battery connections, checking for any visible damage, and using a diagnostic scan tool to analyze the battery system.

4. Can I continue driving my hybrid/electric vehicle with OBDII code P1E7E present?

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

5. What are some repair tips for addressing OBDII code P1E7E related to the Hybrid/Electric Vehicle Battery 83 Circuit?

- Repair tips include checking and repairing any damaged wiring, replacing faulty battery cells, and resetting the battery management system.

6. How urgent is it to address OBDII code P1E7E in a hybrid/electric vehicle?

- It is important to address this code promptly to prevent potential damage to the battery system and ensure the vehicle operates safely and efficiently.

7. Can I reset OBDII code P1E7E related to the Hybrid/Electric Vehicle Battery 83 Circuit on my own?

- While you can clear the code with an OBDII scanner, it is crucial to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

8. What is the typical cost of repairing OBDII code P1E7E associated with the Hybrid/Electric Vehicle Battery 83 Circuit?

- The cost of repair can vary depending on the extent of the issue, but it may involve expenses for parts replacement, wiring repairs, or professional diagnostics.

9. Are there any preventative maintenance measures to avoid OBDII code P1E7E in hybrid/electric vehicles?

- Regularly inspecting the battery system, following manufacturer maintenance guidelines, and avoiding overcharging can help prevent issues leading to this OBDII code.

10. How long does it take to repair OBDII code P1E7E related to the Hybrid/Electric Vehicle Battery 83 Circuit?

- The repair duration can vary based on the complexity of the issue, availability of parts, and the expertise of the technician, but it typically ranges from a few hours to a day.