AutoCodes – Chevrolet – P0B7C Chevrolet

P0B7C Chevrolet Code - Hybrid/Electric Vehicle Battery 14 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: P0B7C Chevrolet indicates Hybrid/Electric Vehicle Battery 14 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 1,045

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B7C 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 P0B7C Chevrolet - Hybrid/Electric Vehicle Battery 14 Circuit - AutoCodes.com — P0B7C Chevrolet Code - Hybrid/Electric Vehicle Battery 14 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B7C Chevrolet?

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

How to Fix the DTC P0B7C 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 P0B7C 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 P0B7C Chevrolet Code

1. What are the common symptoms of OBDII code P0B7C on a Chevrolet hybrid/electric vehicle?

The common symptoms include poor fuel economy, reduced power, and difficulty starting the vehicle.

2. What can cause the OBDII code P0B7C to appear in a Chevrolet hybrid/electric vehicle?

This code typically indicates a malfunction in the Hybrid/Electric Vehicle Battery 14 Circuit, which could be caused by a wiring issue, a faulty battery pack, or a problem with the battery management system.

3. How can I diagnose the issue related to code P0B7C on my Chevrolet hybrid/electric vehicle?

It is recommended to use a diagnostic scan tool to retrieve the specific trouble code and further diagnose the Hybrid/Electric Vehicle Battery 14 Circuit. Additionally, checking the battery connections and inspecting the wiring for any visible damage can help pinpoint the issue.

4. Is it safe to continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P0B7C present?

It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the hybrid/electric system. It is best to address the issue promptly to avoid potential safety hazards.

5. Can I repair the OBDII code P0B7C issue in my Chevrolet hybrid/electric vehicle myself?

Repairing the Hybrid/Electric Vehicle Battery 14 Circuit issue may require specialized knowledge and tools. It is advisable to seek assistance from a professional mechanic or a dealership with experience in hybrid/electric vehicle systems.

6. How much does it typically cost to repair the OBDII code P0B7C in a Chevrolet hybrid/electric vehicle?

The cost of repairing this issue can vary depending on the root cause of the problem. It is recommended to obtain a diagnosis from a qualified technician to get an accurate estimate for the repair.

7. Are there any preventive maintenance tips to avoid encountering the OBDII code P0B7C in my Chevrolet hybrid/electric vehicle?

Regularly inspecting the battery connections, keeping the battery pack clean and properly maintained, and following the manufacturer's recommended service schedule can help prevent issues with the Hybrid/Electric Vehicle Battery 14 Circuit.

8. Can a low battery state of charge trigger the OBDII code P0B7C in a Chevrolet hybrid/electric vehicle?

Yes, a low state of charge in the battery pack can potentially trigger this code. Ensuring the battery pack is adequately charged and functioning properly is crucial in preventing this issue.

9. Will resetting the OBDII code P0B7C on my Chevrolet hybrid/electric vehicle make it go away permanently?

Simply clearing the code may temporarily remove the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It is essential to diagnose and repair the root cause of the problem for a permanent solution.

10. Can a damaged or deteriorating high voltage wiring harness cause the OBDII code P0B7C to trigger in a Chevrolet hybrid/electric vehicle?

Yes, a damaged or deteriorating high voltage wiring harness can disrupt the Hybrid/Electric Vehicle Battery 14 Circuit, leading to the appearance of the P0B7C code. Inspecting and maintaining the integrity of the wiring harness is crucial in preventing this issue.