AutoCodes – Chevrolet – P0BB3 Chevrolet

P0BB3 Chevrolet Code - Hybrid/Electric Vehicle Battery 25 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: P0BB3 Chevrolet indicates Hybrid/Electric Vehicle Battery 25 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 917

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 P0BB3 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 P0BB3 Chevrolet - Hybrid/Electric Vehicle Battery 25 Circuit - AutoCodes.com — P0BB3 Chevrolet Code - Hybrid/Electric Vehicle Battery 25 Circuit

What does this mean?

What are the Possible Causes of the DTC P0BB3 Chevrolet?

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

How to Fix the DTC P0BB3 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 P0BB3 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 P0BB3 Chevrolet Code

1. What are the common symptoms of OBDII code P0BB3 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced hybrid system performance, poor fuel economy, and potential issues with starting the vehicle.

2. What can cause the OBDII code P0BB3 to trigger in a Chevrolet hybrid/electric vehicle?

- The code P0BB3 typically indicates a fault in the Hybrid/Electric Vehicle Battery 25 Circuit, which could be caused by a damaged battery cell, faulty wiring, or a malfunctioning battery management system.

3. How serious is the OBDII code P0BB3 in a Chevrolet hybrid/electric vehicle?

- The code P0BB3 should be addressed promptly as it can affect the performance and efficiency of the hybrid system. Ignoring the issue may lead to further damage to the battery or other components.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P0BB3 present?

- It is not recommended to continue driving the vehicle with the code P0BB3 active, as it can lead to reduced performance and potential safety hazards. It's best to have the issue diagnosed and repaired by a qualified technician.

5. How is the OBDII code P0BB3 diagnosed in a Chevrolet hybrid/electric vehicle?

- Diagnosing the code P0BB3 typically involves using a professional OBDII scanner to retrieve the specific fault codes, conducting a visual inspection of the battery and related components, and performing electrical tests to pinpoint the issue.

6. What are some repair tips for fixing the OBDII code P0BB3 in a Chevrolet hybrid/electric vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty battery cells, recalibrating the battery management system, and ensuring proper connections in the Hybrid/Electric Vehicle Battery 25 Circuit.

7. Can I reset the OBDII code P0BB3 in my Chevrolet hybrid/electric vehicle on my own?

- While you can clear the trouble code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from recurring. Resetting the code without fixing the problem may lead to further issues.

8. How much does it typically cost to repair the OBDII code P0BB3 in a Chevrolet hybrid/electric vehicle?

- The cost of repairing the OBDII code P0BB3 can vary depending on the exact cause of the issue, the extent of the damage, and labor costs. It is advisable to get a professional diagnosis to determine the precise repair cost.

9. Are there any preventive maintenance steps I can take to avoid the OBDII code P0BB3 in my Chevrolet hybrid/electric vehicle?

- Regularly inspecting the battery, keeping up with scheduled maintenance, and addressing any warning signs promptly can help prevent issues that may trigger the code P0BB3 in a Chevrolet hybrid/electric vehicle.