AutoCodes – Buick – P0B6D Buick

P0B6D Buick Code - Hybrid/Electric Vehicle Battery 11 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: P0B6D Buick indicates Hybrid/Electric Vehicle Battery 11 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 896

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 P0B6D Buick 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 P0B6D Buick - Hybrid/Electric Vehicle Battery 11 Circuit - AutoCodes.com — P0B6D Buick Code - Hybrid/Electric Vehicle Battery 11 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B6D Buick?

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

How to Fix the DTC P0B6D Buick?

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 P0B6D Buick 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 P0B6D Buick Code

1. What are the common symptoms of OBDII code P0B6D in a Buick Hybrid/Electric Vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, and the illumination of the check engine light.

2. What does OBDII code P0B6D Buick indicate about the Hybrid/Electric Vehicle Battery 11 Circuit?

- This code indicates a malfunction or issue with the circuit related to the 11th battery in the hybrid/electric vehicle system.

3. What are the possible causes of OBDII code P0B6D in a Buick Hybrid/Electric Vehicle?

- Possible causes include a faulty battery cell, damaged wiring, a defective battery management system, or a software glitch.

4. How can I diagnose the OBDII code P0B6D in my Buick Hybrid/Electric Vehicle?

- Diagnosis involves using a scan tool to retrieve the code, inspecting the battery connections, and testing the battery cells and related components.

5. Can I continue driving my Buick Hybrid/Electric Vehicle with OBDII code P0B6D present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric system.

6. What are some repair tips for fixing OBDII code P0B6D in a Buick Hybrid/Electric Vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty battery cells, resetting the battery management system, or updating software.

7. How much does it typically cost to repair OBDII code P0B6D in a Buick Hybrid/Electric Vehicle?

- Repair costs can vary depending on the specific issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can I reset the OBDII code P0B6D in my Buick Hybrid/Electric Vehicle without fixing the underlying issue?

- While you can clear the code temporarily, it is important to address the root cause to prevent further issues and potential damage to the vehicle.

9. Are there any recalls or technical service bulletins related to OBDII code P0B6D in Buick Hybrid/Electric Vehicles?

- It's recommended to check with Buick or a certified dealership for any relevant recalls or bulletins related to this specific OBDII code.

10. How can I prevent OBDII code P0B6D from recurring in my Buick Hybrid/Electric Vehicle?

- Regular maintenance, such as checking the battery health, inspecting wiring connections, and keeping the software up to date, can help prevent this code from recurring.