AutoCodes – Chevrolet – P0BBA Chevrolet

P0BBA Chevrolet Code - Hybrid/Electric Vehicle Battery 26 Circuit Low 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: P0BBA Chevrolet indicates Hybrid/Electric Vehicle Battery 26 Circuit Low 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 980

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 P0BBA 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 P0BBA Chevrolet - Hybrid/Electric Vehicle Battery 26 Circuit Low Voltage - AutoCodes.com — P0BBA Chevrolet Code - Hybrid/Electric Vehicle Battery 26 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BBA Chevrolet?

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

How to Fix the DTC P0BBA 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 P0BBA 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 P0BBA Chevrolet Code

1. What are common symptoms of OBDII code P0BBA in a Chevrolet hybrid/electric vehicle?

- Common symptoms may include decreased fuel efficiency, reduced engine power, and an illuminated check engine light.

2. What does the OBDII code P0BBA indicate in a Chevrolet hybrid/electric vehicle?

- The code P0BBA specifically refers to the Hybrid/Electric Vehicle Battery 26 Circuit Low Voltage issue.

3. What are the possible causes of OBDII code P0BBA in a Chevrolet hybrid/electric vehicle?

- Potential causes include a failing hybrid/electric battery, issues with the battery 26 circuit, or a malfunction in the battery control module.

4. How can I diagnose the OBDII code P0BBA in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to read the code, inspecting the hybrid/electric battery connections, and testing the battery voltage levels.

5. Can I continue driving my Chevrolet hybrid/electric vehicle with OBDII code P0BBA?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards.

6. How can I repair the Hybrid/Electric Vehicle Battery 26 Circuit Low Voltage issue in my Chevrolet?

- Repair options may include replacing the hybrid/electric battery, repairing the battery 26 circuit, or reprogramming the battery control module.

7. Is it possible to reset the OBDII code P0BBA in a Chevrolet hybrid/electric vehicle?

- While you can clear the code with a scan tool, it is important to address the underlying issue causing the code to prevent it from recurring.

8. How much does it typically cost to repair OBDII code P0BBA in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the specific issue, but it is advisable to consult a professional technician for an accurate diagnosis and cost estimate.

9. Can a DIY enthusiast fix OBDII code P0BBA in a Chevrolet hybrid/electric vehicle?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek assistance from a qualified technician with experience in handling such issues.

10. Are there any maintenance tips to prevent OBDII code P0BBA from appearing in my Chevrolet hybrid/electric vehicle?

- Regularly inspecting the hybrid/electric battery, ensuring proper charging habits, and following the manufacturer's maintenance schedule can help prevent this issue.