AutoCodes – Chevrolet – P0B57 Chevrolet

P0B57 Chevrolet Code - Hybrid/Electric Vehicle Battery 6 Circuit High 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: P0B57 Chevrolet indicates Hybrid/Electric Vehicle Battery 6 Circuit High 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 1,032

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 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B57 Chevrolet 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 P0B57 Chevrolet - Hybrid/Electric Vehicle Battery 6 Circuit High Voltage - AutoCodes.com — P0B57 Chevrolet Code - Hybrid/Electric Vehicle Battery 6 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B57 Chevrolet?

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

How to Fix the DTC P0B57 Chevrolet?

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 P0B57 Chevrolet 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 P0B57 Chevrolet Code

1. What are the common symptoms of OBDII code P0B57 in a Chevrolet Hybrid/Electric Vehicle?

The common symptoms include reduced electric vehicle range, poor performance, illuminated check engine light, and potentially a warning message related to the high voltage battery system.

2. What can cause the OBDII code P0B57 to be triggered in a Chevrolet Hybrid/Electric Vehicle?

This code is typically triggered by a fault in the Hybrid/Electric Vehicle Battery 6 Circuit, which could be caused by a wiring issue, a faulty battery cell, a problem with the battery management system, or a malfunctioning high voltage relay.

3. How serious is the OBDII code P0B57 in a Chevrolet Hybrid/Electric Vehicle?

This code indicates a high voltage circuit problem in the vehicle's battery system, which is a serious issue in a hybrid or electric vehicle. Continued operation with this fault can lead to further damage to the battery system and potentially pose safety risks.

4. Can I continue driving my Chevrolet Hybrid/Electric Vehicle with the P0B57 code present?

It is not recommended to continue driving the vehicle with the P0B57 code present, as it can lead to further damage to the high voltage battery system. It's best to have the issue diagnosed and repaired by a qualified technician as soon as possible.

5. How can I diagnose and repair the OBDII code P0B57 in my Chevrolet Hybrid/Electric Vehicle?

Diagnosing and repairing this code usually requires specialized equipment and expertise. It's recommended to take your vehicle to a certified dealership or a qualified mechanic with experience in hybrid/electric vehicle systems to properly diagnose and repair the issue.

6. Are there any safety precautions to take when dealing with the Hybrid/Electric Vehicle Battery 6 Circuit High Voltage issue?

When working on the high voltage system of a hybrid/electric vehicle, it's crucial to follow all safety protocols and procedures outlined by the manufacturer. High voltage systems can be dangerous, and it's best to leave diagnosis and repair to trained professionals.

7. How much does it typically cost to repair the OBDII code P0B57 in a Chevrolet Hybrid/Electric Vehicle?

The cost of repair can vary depending on the exact cause of the issue and the labor rates of the repair shop. It's recommended to get a diagnostic assessment first to determine the specific repairs needed and associated costs.

8. Can a DIY enthusiast attempt to fix the OBDII code P0B57 in a Chevrolet Hybrid/Electric Vehicle?

Due to the complexity and safety considerations of working on high voltage systems in hybrid/electric vehicles, it's not recommended for DIY enthusiasts to attempt repairs related to the Hybrid/Electric Vehicle Battery 6 Circuit High Voltage issue. Professional expertise is essential.

9. Will resetting the OBDII code P0B57 in my Chevrolet Hybrid/Electric Vehicle make the problem go away?

Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the fault. It's important to have the problem diagnosed and repaired to prevent further damage to the vehicle's high voltage system.

10. How often does the OBDII code P0B57 occur in Chevrolet Hybrid/Electric Vehicles?

While the frequency of this specific code can vary, issues related to the high voltage battery system in hybrid/electric vehicles are not uncommon. Regular maintenance and proper care of the vehicle can help prevent such faults from occurring.