AutoCodes – GMC – P1E7E GMC

P1E7E GMC 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 GMC 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 919

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

What does this mean?

What are the Possible Causes of the DTC P1E7E GMC?

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

How to Fix the DTC P1E7E 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 P1E7E 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 P1E7E GMC Code

1. What are common symptoms of OBDII code P1E7E in a GMC hybrid/electric vehicle?

Common symptoms include the check engine light illuminating, reduced hybrid/electric system performance, and potential issues with the battery charging system.

2. What does the OBDII code P1E7E GMC signify in terms of the Hybrid/Electric Vehicle Battery 83 Circuit?

The code P1E7E indicates a problem with the Hybrid/Electric Vehicle Battery 83 Circuit in a GMC hybrid/electric vehicle.

3. What are possible causes of OBDII code P1E7E in a GMC hybrid/electric vehicle?

Possible causes include a faulty battery pack, issues with the battery management system, wiring problems, or a malfunctioning battery control module.

4. How can I diagnose the OBDII code P1E7E in my GMC hybrid/electric vehicle?

Diagnosing the code may require specialized diagnostic equipment to test the battery system, inspect wiring for damage, and check for any loose connections or corrosion.

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

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

6. How can I repair OBDII code P1E7E in my GMC hybrid/electric vehicle?

Repairing the code may involve replacing the faulty battery pack, addressing wiring issues, resetting the battery control module, or seeking assistance from a qualified technician.

7. Is it safe to attempt DIY repairs for OBDII code P1E7E in a GMC hybrid/electric vehicle?

Due to the complexity of the hybrid/electric vehicle system and the high voltage components involved, it is recommended to seek professional assistance for repairs related to this code.

8. Can a low battery state of charge trigger the OBDII code P1E7E in a GMC hybrid/electric vehicle?

Yes, a low battery state of charge can potentially trigger the code P1E7E, as it may indicate an issue with the battery's ability to hold a charge or the charging system.

9. How long does it typically take to repair OBDII code P1E7E in a GMC hybrid/electric vehicle?

The repair time can vary depending on the specific issue causing the code, but it may take several hours to a full day to diagnose and address the problem effectively.

10. Are there any preventive maintenance tips to avoid encountering OBDII code P1E7E in a GMC hybrid/electric vehicle?

Regularly inspecting the battery system, following manufacturer-recommended maintenance schedules, and addressing any warning signs promptly can help prevent issues leading to the code P1E7E.