AutoCodes – Buick – P0BA6 Buick

P0BA6 Buick Code - Hybrid/Electric Vehicle Battery 22 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: P0BA6 Buick indicates Hybrid/Electric Vehicle Battery 22 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 1,033

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 P0BA6 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 P0BA6 Buick - Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage - AutoCodes.com — P0BA6 Buick Code - Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BA6 Buick?

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

How to Fix the DTC P0BA6 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 P0BA6 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 P0BA6 Buick Code

1. What are the common symptoms of OBDII code P0BA6 in a Buick Hybrid/Electric Vehicle?

- Common symptoms include reduced electric vehicle range, difficulty starting the vehicle, and the illumination of the hybrid system warning light.

2. What can cause the OBDII code P0BA6 in a Buick Hybrid/Electric Vehicle?

- The code can be triggered by issues such as a faulty hybrid/electric vehicle battery, a damaged high voltage wiring harness, or a malfunctioning battery management system.

3. How serious is the P0BA6 code in a Buick Hybrid/Electric Vehicle?

- The P0BA6 code indicating Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage is considered a serious issue that can affect the performance and drivability of the vehicle if left unresolved.

4. Can I continue driving my Buick Hybrid/Electric Vehicle with the P0BA6 code present?

- It is not recommended to continue driving the vehicle with the P0BA6 code active, as it can lead to further damage to the hybrid/electric components and potentially leave you stranded.

5. How can I diagnose and repair the P0BA6 code in my Buick Hybrid/Electric Vehicle?

- Diagnosis typically involves using a scan tool to retrieve the specific fault codes and then inspecting the hybrid/electric components for any visible damage or issues. Repair may involve replacing the faulty battery, repairing wiring harnesses, or reprogramming the battery management system.

6. Can a DIY enthusiast fix the P0BA6 code in a Buick Hybrid/Electric Vehicle?

- Due to the complexity and high voltage nature of the components involved, it is recommended to have the P0BA6 code diagnosed and repaired by a qualified technician with experience working on hybrid/electric vehicles.

7. How much does it cost to repair the P0BA6 code in a Buick Hybrid/Electric Vehicle?

- The cost of repairing the P0BA6 code can vary depending on the specific issue causing the fault. It is advisable to obtain a diagnostic from a professional technician to determine the exact repair cost.

8. Will resetting the OBDII code P0BA6 in my Buick Hybrid/Electric Vehicle make it go away permanently?

- Simply resetting the code without addressing the underlying issue will not make it go away permanently. The fault must be diagnosed and repaired to prevent the code from reoccurring.

9. Is the P0BA6 OBDII code covered under any warranties for Buick Hybrid/Electric Vehicles?

- Depending on the vehicle's warranty coverage and age, the repair for the P0BA6 code may be covered under the hybrid/electric vehicle components warranty. It is advisable to check with the dealership or manufacturer for warranty details.

10. Can extreme weather conditions affect the occurrence of the P0BA6 code in a Buick Hybrid/Electric Vehicle?

- Extreme temperatures, both hot and cold, can potentially impact the performance and health of the hybrid/electric vehicle battery, which may lead to triggering the P0BA6 code. It is important to keep the vehicle within recommended temperature ranges for optimal operation.