AutoCodes – Generic – P1E05

P1E05 Code - Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage

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: P1E05 indicates Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage.
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 1,973

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 P1E05 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 P1E05 - Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage - AutoCodes.com — P1E05 Code - Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1E05?

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

How to Fix the DTC P1E05?

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 P1E05 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

P1E05 Buick — Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage
P1E05 Cadillac — Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage
P1E05 Chevrolet — Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage
P1E05 GMC — Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage
P1E05 Saturn — Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage

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 P1E05 Code

1. What are the common symptoms of OBDII code P1E05 (Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage)?

- Common symptoms include reduced electric vehicle range, poor performance, and potential issues with starting the vehicle.

2. What are some possible causes of OBDII code P1E05?

- Causes can include a faulty hybrid/electric vehicle battery, damaged wiring or connectors in the battery circuit, or issues with the battery management system.

3. How can I diagnose the source of OBDII code P1E05?

- Diagnosing the code typically involves using a diagnostic scanner to read the code, conducting a visual inspection of the battery and related components, and performing voltage tests on the battery circuit.

4. What are the potential risks of ignoring OBDII code P1E05?

- Ignoring the code can lead to further damage to the hybrid/electric vehicle battery, reduced vehicle performance, and potential safety hazards while driving.

5. Can I continue driving my vehicle with OBDII code P1E05 present?

- It is not recommended to drive the vehicle with this code active, as it can affect the safe operation of the vehicle and cause further damage to the battery system.

6. How can I repair OBDII code P1E05 (Hybrid/Electric Vehicle Battery 96 Circuit Low Voltage)?

- Repairing the code may involve replacing the faulty battery, repairing damaged wiring or connectors, or recalibrating the battery management system as recommended by the manufacturer.

7. Are there any DIY tips for troubleshooting OBDII code P1E05?

- DIY troubleshooting tips include checking the battery connections for tightness, inspecting the battery for physical damage, and ensuring proper charging of the hybrid/electric vehicle battery.

8. How much does it typically cost to repair OBDII code P1E05?

- The cost of repairing this code can vary depending on the underlying issue, but it may involve expenses for parts and labor ranging from a few hundred to a few thousand dollars.

9. Can a regular mechanic repair OBDII code P1E05, or do I need to visit a specialized shop?

- While a regular mechanic may be able to diagnose and repair some aspects of this code, it is recommended to visit a specialized shop or dealership with experience in hybrid/electric vehicle systems for more complex issues.

10. How can I prevent OBDII code P1E05 from recurring in the future?

- To prevent the code from recurring, it is essential to perform regular maintenance on the hybrid/electric vehicle battery, address any related issues promptly, and follow the manufacturer's guidelines for battery care and usage.