AutoCodes – Chevrolet – P0B5C Chevrolet

P0B5C Chevrolet Code - Hybrid/Electric Vehicle Battery 7 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: P0B5C Chevrolet indicates Hybrid/Electric Vehicle Battery 7 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 880

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 P0B5C 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 P0B5C Chevrolet - Hybrid/Electric Vehicle Battery 7 Circuit High Voltage - AutoCodes.com — P0B5C Chevrolet Code - Hybrid/Electric Vehicle Battery 7 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B5C Chevrolet?

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

How to Fix the DTC P0B5C 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 P0B5C 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 P0B5C Chevrolet Code

1. What are the common symptoms of OBDII code P0B5C in a Chevrolet hybrid/electric vehicle?

- Common symptoms include the check engine light illuminating, reduced hybrid/electric vehicle performance, and potential issues with the high-voltage battery system.

2. What does the OBDII code P0B5C Chevrolet indicate about the Hybrid/Electric Vehicle Battery 7 Circuit High Voltage?

- This code suggests a high-voltage circuit issue in the seventh battery module of the hybrid/electric vehicle's high-voltage battery system.

3. What are the possible causes of the OBDII code P0B5C in a Chevrolet hybrid/electric vehicle?

- Causes may include damaged wiring, faulty connectors, a malfunctioning battery module, or issues with the high-voltage battery management system.

4. How can I diagnose the OBDII code P0B5C in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting the high-voltage battery system components, checking for loose connections, and testing the battery module.

5. What are the repair options for addressing OBDII code P0B5C in a Chevrolet hybrid/electric vehicle?

- Repair options may include repairing or replacing damaged wiring, addressing faulty connectors, replacing the problematic battery module, or resetting the high-voltage battery system.

6. Is it safe to continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P0B5C present?

- It is not recommended to drive the vehicle with this code active, as it may lead to further damage to the high-voltage battery system and compromise vehicle safety.

7. Can I reset the OBDII code P0B5C in my Chevrolet hybrid/electric vehicle on my own?

- While you can attempt to clear the code using an OBDII scan tool, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

8. How can regular maintenance help prevent OBDII code P0B5C from appearing in a Chevrolet hybrid/electric vehicle?

- Regular maintenance, including checking the high-voltage battery system, ensuring proper connections, and addressing any warning signs promptly, can help prevent issues leading to this code.

9. Are there any safety precautions to consider when working on the high-voltage battery system related to OBDII code P0B5C?

- When working on the high-voltage system, always follow manufacturer safety guidelines, wear appropriate personal protective equipment, and consider the high voltage present in the system.

10. Will addressing the OBDII code P0B5C in my Chevrolet hybrid/electric vehicle be covered under warranty?

- Depending on the warranty terms and conditions, repairs related to this code may be covered if the vehicle is still within the warranty period or if the issue falls under specific warranty coverage.