AutoCodes – GMC – P0B57 GMC

P0B57 GMC 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 GMC 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 785

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 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 P0B57 GMC - Hybrid/Electric Vehicle Battery 6 Circuit High Voltage - AutoCodes.com — P0B57 GMC Code - Hybrid/Electric Vehicle Battery 6 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B57 GMC?

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

How to Fix the DTC P0B57 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 P0B57 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 P0B57 GMC Code

1. What are common symptoms of OBDII code P0B57 GMC related to Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Common symptoms include illuminated warning lights on the dashboard, reduced hybrid system performance, and potential issues with the vehicle's battery charging.

2. What are some possible causes of OBDII code P0B57 GMC indicating Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Possible causes include a faulty high voltage battery, damaged battery wiring or connections, issues with the battery management system, or problems with other related components.

3. How can I diagnose the source of OBDII code P0B57 GMC in relation to Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Diagnosing this code may require using a scan tool to retrieve specific battery system data, conducting voltage tests on the high voltage battery, inspecting wiring for damage, and checking the functionality of the battery management system.

4. Is it safe to drive my vehicle if OBDII code P0B57 GMC is triggered for Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- It is not recommended to drive the vehicle when this code is active, as it could indicate potential high voltage safety risks and may lead to further damage to the hybrid/electric system.

5. Can I reset OBDII code P0B57 GMC related to Hybrid/Electric Vehicle Battery 6 Circuit High Voltage on my own?

- While you can clear the code with a scan tool, it is important to address the underlying issue causing the code to prevent further damage and ensure the safety and performance of the hybrid/electric system.

6. What are some repair tips for addressing OBDII code P0B57 GMC for Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Repair tips may include inspecting and repairing damaged wiring, replacing a faulty high voltage battery, recalibrating the battery management system, and ensuring all connections are secure and functioning properly.

7. How much does it typically cost to repair OBDII code P0B57 GMC associated with Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Repair costs can vary depending on the specific issue causing the code, the extent of repairs needed, and whether any components require replacement. It is advisable to consult with a professional technician for an accurate estimate.

8. Are there any preventative maintenance measures to avoid triggering OBDII code P0B57 GMC for Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- Regularly inspecting the high voltage battery system, keeping connections clean and secure, and following the manufacturer's recommended maintenance schedule can help prevent issues that may trigger this code.

9. Can a DIY enthusiast with knowledge of hybrid/electric systems repair OBDII code P0B57 GMC for Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- While some basic troubleshooting and repairs may be possible for experienced DIY enthusiasts, addressing issues related to high voltage systems and complex hybrid components should be left to trained professionals to ensure safety and proper repairs.

10. How long can I safely wait before addressing OBDII code P0B57 GMC linked to Hybrid/Electric Vehicle Battery 6 Circuit High Voltage?

- It is advisable to address this code promptly to prevent potential safety risks, further damage to the hybrid/electric system, and to ensure the vehicle's performance and efficiency are not compromised.