AutoCodes – GMC – P1E76 GMC

P1E76 GMC Code - Hybrid/Electric Vehicle Battery 75 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: P1E76 GMC indicates Hybrid/Electric Vehicle Battery 75 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 1,003

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 P1E76 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 P1E76 GMC - Hybrid/Electric Vehicle Battery 75 Circuit - AutoCodes.com — P1E76 GMC Code - Hybrid/Electric Vehicle Battery 75 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E76 GMC?

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

How to Fix the DTC P1E76 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 P1E76 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 P1E76 GMC Code

1. What are common symptoms of OBDII code P1E76 in a GMC Hybrid/Electric Vehicle?

- Common symptoms include poor fuel efficiency, reduced power, difficulty starting the vehicle, and the illumination of the check engine light.

2. What does the OBDII code P1E76 in a GMC Hybrid/Electric Vehicle indicate?

- The code P1E76 indicates a fault in the Hybrid/Electric Vehicle Battery 75 Circuit.

3. What are some possible causes of OBDII code P1E76 in a GMC Hybrid/Electric Vehicle?

- Possible causes include a faulty battery module, damaged wiring or connectors, software issues, or a malfunctioning battery management system.

4. How can I diagnose the OBDII code P1E76 in my GMC Hybrid/Electric Vehicle?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the battery components, checking for loose connections, and performing a battery system test.

5. Can I drive my GMC Hybrid/Electric Vehicle with the OBDII code P1E76 present?

- It is not recommended to drive the vehicle with the code P1E76 present, as it can lead to further damage to the battery system and affect the vehicle's performance.

6. How can I repair OBDII code P1E76 in my GMC Hybrid/Electric Vehicle?

- Repair options may include replacing the faulty battery module, repairing damaged wiring, updating software, or recalibrating the battery management system.

7. Will resetting the OBDII code P1E76 in my GMC Hybrid/Electric Vehicle make the problem go away?

- Resetting the code may temporarily clear the check engine light, but it will not fix the underlying issue causing the fault code to appear.

8. Is it safe to attempt DIY repairs for OBDII code P1E76 in a GMC Hybrid/Electric Vehicle?

- It is recommended to seek professional assistance or consult the vehicle's service manual when dealing with issues related to the Hybrid/Electric Vehicle Battery 75 Circuit.

9. How much does it typically cost to repair OBDII code P1E76 in a GMC Hybrid/Electric Vehicle?

- Repair costs can vary depending on the specific cause of the issue, but replacing a faulty battery module or addressing wiring problems can range from a few hundred to over a thousand dollars.

10. Can regular maintenance help prevent OBDII code P1E76 in a GMC Hybrid/Electric Vehicle?

- Regular maintenance, such as checking the battery system, keeping connections clean, and following manufacturer-recommended service intervals, can help prevent issues that may trigger the code P1E76.