AutoCodes – Cadillac – P0B6A Cadillac

P0B6A Cadillac Code - Hybrid/Electric Vehicle Battery 10 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: P0B6A Cadillac indicates Hybrid/Electric Vehicle Battery 10 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 997

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 P0B6A Cadillac 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 P0B6A Cadillac - Hybrid/Electric Vehicle Battery 10 Circuit Low Voltage - AutoCodes.com — P0B6A Cadillac Code - Hybrid/Electric Vehicle Battery 10 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B6A Cadillac?

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

How to Fix the DTC P0B6A Cadillac?

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 P0B6A Cadillac 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 P0B6A Cadillac Code

1. What are the common symptoms of OBDII code P0B6A in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced electric drive range, poor fuel economy, and difficulty starting the vehicle.

2. What can cause the OBDII code P0B6A in a Cadillac hybrid/electric vehicle?

- The code may be triggered by a low-voltage condition in the hybrid/electric vehicle battery, a faulty battery cell, or issues with the battery management system.

3. How serious is the P0B6A code in a Cadillac hybrid/electric vehicle?

- The code indicates a low-voltage condition in the hybrid/electric vehicle battery, which can affect the vehicle's performance and efficiency. It should be addressed promptly to avoid further damage.

4. Can I continue driving my Cadillac with the P0B6A code present?

- It is not recommended to continue driving the vehicle with the P0B6A code present, as it can lead to further damage to the hybrid/electric vehicle battery system.

5. How can I diagnose and repair the P0B6A code in my Cadillac hybrid/electric vehicle?

- Diagnosis typically involves checking the hybrid/electric vehicle battery voltage levels, inspecting the battery cells, and testing the battery management system. Repair may involve replacing a faulty battery cell or addressing issues with the battery management system.

6. Are there any DIY tips for addressing the P0B6A code in a Cadillac hybrid/electric vehicle?

- DIY tips for addressing the P0B6A code are limited due to the complexity of the hybrid/electric vehicle battery system. It is recommended to seek professional help for diagnosis and repair.

7. How much does it cost to fix the P0B6A code in a Cadillac hybrid/electric vehicle?

- The cost of fixing the P0B6A code can vary depending on the underlying cause. It may involve replacing a battery cell, repairing the battery management system, or other related components. Costs can range from a few hundred to a few thousand dollars.

8. Can a regular mechanic repair the P0B6A code in a Cadillac hybrid/electric vehicle?

- Due to the specialized nature of hybrid/electric vehicle battery systems, it is recommended to seek assistance from a mechanic or dealership with expertise in hybrid/electric vehicle repair.

9. Will resetting the OBDII code P0B6A make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the P0B6A code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the code.

10. How often should I have the hybrid/electric vehicle battery system checked to prevent the P0B6A code?

- It is recommended to have the hybrid/electric vehicle battery system checked during routine maintenance or if you experience any symptoms of battery-related issues to prevent the occurrence of codes like P0B6A.