AutoCodes – Generic – P1E76

P1E76 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 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 797

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

What does this mean?

What are the Possible Causes of the DTC P1E76?

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

How to Fix the DTC P1E76?

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 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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Need Help with the Code?

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Information for Specific Makes

P1E76 Buick — Hybrid/Electric Vehicle Battery 75 Circuit
P1E76 Cadillac — Hybrid/Electric Vehicle Battery 75 Circuit
P1E76 Chevrolet — Hybrid/Electric Vehicle Battery 75 Circuit
P1E76 GMC — Hybrid/Electric Vehicle Battery 75 Circuit
P1E76 Saturn — Hybrid/Electric Vehicle Battery 75 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 P1E76 Code

What does the OBDII code P1E76 mean?

1. The P1E76 code refers to a fault in the Hybrid/Electric Vehicle Battery 75 Circuit, indicating a potential issue with the battery sensor or its associated wiring. 2.

What are the common symptoms of the P1E76 code?

Common symptoms include an illuminated check engine light, reduced hybrid or electric vehicle performance, and potential limitations in battery charging or discharging. 3.

What causes the P1E76 code to appear?

The code is often triggered by a faulty battery sensor, damaged wiring or connectors in the circuit, or issues with the battery control module. 4.

Can I drive my vehicle with the P1E76 code?

Driving with the P1E76 code is not recommended as it can lead to further damage to the hybrid/electric system and reduced vehicle performance. 5.

How can I diagnose the P1E76 code?

Diagnosis typically involves scanning the vehicle with an OBDII tool, inspecting the battery circuit wiring and connectors, and testing the battery sensor for faults. 6.

What repairs are needed to fix the P1E76 code?

Repairs may include replacing the faulty battery sensor, repairing damaged wiring or connectors, or reprogramming the battery control module if necessary. 7.

How much does it cost to fix the P1E76 code?

Repair costs vary depending on the issue but can range from $100 to $500, with more significant repairs potentially costing more. 8.

Can a weak hybrid battery trigger the P1E76 code?

Yes, a degraded or malfunctioning hybrid battery can contribute to this code if it impacts the circuit or sensor performance. 9.

Will clearing the P1E76 code solve the problem?

Clearing the code without addressing the underlying issue will not resolve the problem, and the code is likely to return. 10.

Can a DIY repair fix the P1E76 code?

If the issue is a simple wiring or connector problem, experienced DIYers with the proper tools may be able to fix it. However, diagnosing and repairing hybrid systems often requires professional expertise.