AutoCodes – Chevrolet – P0BB6 Chevrolet

P0BB6 Chevrolet Code - Hybrid/Electric Vehicle Battery 25 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: P0BB6 Chevrolet indicates Hybrid/Electric Vehicle Battery 25 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 961

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0BB6 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 P0BB6 Chevrolet - Hybrid/Electric Vehicle Battery 25 Circuit High Voltage - AutoCodes.com — P0BB6 Chevrolet Code - Hybrid/Electric Vehicle Battery 25 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0BB6 Chevrolet?

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

How to Fix the DTC P0BB6 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 P0BB6 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.

Need more information about the P0BB6 Chevrolet code?

Need more information on how to fix the P0BB6 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0BB6 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P0BB6 Chevrolet Code

1. What are the common symptoms of OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms include the illumination of the check engine light, reduced hybrid system performance, and potential issues with the high voltage battery.

2. What can cause the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- The code P0BB6 usually indicates a high voltage circuit fault in the hybrid/electric vehicle battery system. This could be caused by damaged wiring, faulty battery components, or issues with the battery management system.

3. How can I diagnose the OBDII code P0BB6 in my Chevrolet Hybrid/Electric Vehicle?

- Diagnosing the code P0BB6 typically requires specialized diagnostic equipment to check the high voltage battery system, including the battery voltage levels, wiring integrity, and overall system health.

4. Can I continue driving my Chevrolet Hybrid/Electric Vehicle with the OBDII code P0BB6 present?

- It is not recommended to continue driving your vehicle with the code P0BB6 active, as it can lead to further damage to the high voltage battery system and potentially compromise vehicle safety.

5. What are some repair tips for fixing the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- Repairing the code P0BB6 often involves inspecting and repairing damaged wiring, replacing faulty battery components, and resetting the battery management system to clear the fault code.

6. Is it safe to attempt DIY repairs for the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- Due to the high voltage nature of the hybrid/electric vehicle battery system, it is recommended to seek professional assistance or take the vehicle to a certified technician for repairs related to the code P0BB6.

7. How much does it cost to repair the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- Repair costs for the code P0BB6 can vary depending on the extent of the damage and the specific repairs needed. It is advisable to obtain a diagnosis from a qualified technician to determine the exact cost.

8. Can a faulty hybrid/electric vehicle battery cause the OBDII code P0BB6 in a Chevrolet?

- Yes, a faulty hybrid/electric vehicle battery or issues within the battery management system can trigger the OBDII code P0BB6 indicating a high voltage circuit fault.

9. How long does it typically take to repair the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- The repair time for the code P0BB6 can vary depending on the complexity of the issue and the availability of parts. In some cases, repairs may be completed within a few hours, while more extensive repairs could take longer.

10. What precautions should I take when dealing with the OBDII code P0BB6 in a Chevrolet Hybrid/Electric Vehicle?

- When dealing with high voltage systems like those in hybrid/electric vehicles, it is crucial to follow all safety protocols and procedures outlined in the vehicle's service manual. If unsure, seek professional help to avoid any risks.