AutoCodes – Buick – P1E58 Buick

P1E58 Buick Code - Hybrid/Electric Vehicle Battery 45 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: P1E58 Buick indicates Hybrid/Electric Vehicle Battery 45 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 839

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 P1E58 Buick 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 P1E58 Buick - Hybrid/Electric Vehicle Battery 45 Circuit - AutoCodes.com — P1E58 Buick Code - Hybrid/Electric Vehicle Battery 45 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E58 Buick?

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

How to Fix the DTC P1E58 Buick?

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 P1E58 Buick 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 P1E58 Buick Code

What does the OBDII code P1E58 mean for a Buick hybrid vehicle?

The P1E58 code indicates a problem with the Hybrid/Electric Vehicle Battery 45 Circuit, which can affect the overall performance of the hybrid system.

What are common symptoms of the P1E58 code?

Symptoms may include reduced engine power, warning lights on the dashboard, and poor fuel efficiency, as well as potential issues with the hybrid battery performance.

What could cause the P1E58 code to trigger?

Common causes include a faulty battery management system, damaged wiring or connectors in the battery circuit, or issues with the hybrid battery itself.

How can I diagnose the P1E58 code?

Start by using an OBDII scanner to confirm the code and check for any other related codes. Inspect the hybrid battery connections and wiring for signs of damage or corrosion.

What are some common repairs for the P1E58 code?

Repairs may involve replacing damaged wiring, repairing or replacing connectors, or, in some cases, replacing the hybrid battery if it's found to be faulty.

Is it safe to drive a Buick with the P1E58 code?

While it may be safe for short distances, it's advisable to address the code promptly to avoid further damage to the hybrid system and to ensure optimal vehicle performance.

Can I clear the P1E58 code without fixing the issue?

Clearing the code may temporarily turn off the warning light, but the underlying issue will remain and may lead to further complications if not resolved.

How much does it typically cost to repair issues related to the P1E58 code?

Repair costs can vary widely depending on the issueâ€”simple wiring repairs may cost a few hundred dollars, while replacing a hybrid battery can be significantly more expensive, potentially ranging from $1,000 to $6,000.

Should I consult a professional mechanic for the P1E58 code?

Yes, due to the complexity of hybrid systems, it's recommended to consult a professional mechanic who has experience with hybrid vehicles for accurate diagnosis and repair.