AutoCodes – Buick – P1BA6 Buick

P1BA6 Buick Code - Hybrid/Electric Vehicle Battery 65 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: P1BA6 Buick indicates Hybrid/Electric Vehicle Battery 65 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 746

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BA6 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 P1BA6 Buick - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage - AutoCodes.com — P1BA6 Buick Code - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BA6 Buick?

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

How to Fix the DTC P1BA6 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 P1BA6 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 P1BA6 Buick Code

1. What are common symptoms of OBDII code P1BA6 in a Buick hybrid/electric vehicle?

- Common symptoms include the hybrid/electric vehicle battery not charging properly, decreased fuel efficiency, and potential warning lights on the dashboard.

2. What can cause the OBDII code P1BA6 in a Buick hybrid/electric vehicle?

- This code is usually triggered by issues such as a faulty battery 65 circuit, low voltage in the hybrid/electric vehicle battery, or damaged wiring.

3. How do I diagnose the OBDII code P1BA6 in my Buick hybrid/electric vehicle?

- To diagnose this code, you may need to perform a thorough inspection of the battery 65 circuit, check for any loose connections, and test the voltage levels in the hybrid/electric vehicle battery.

4. Is it safe to continue driving my Buick with the OBDII code P1BA6?

- It is not recommended to continue driving your Buick with this code as it may lead to further damage to the hybrid/electric vehicle system. It's best to address the issue promptly.

5. Can I repair the OBDII code P1BA6 in my Buick hybrid/electric vehicle myself?

- While some DIY enthusiasts may attempt to troubleshoot and repair this code, it is advisable to seek professional help, especially when dealing with high-voltage systems in hybrid/electric vehicles.

6. How much does it typically cost to repair the OBDII code P1BA6 in a Buick hybrid/electric vehicle?

- The cost of repair can vary depending on the underlying issue causing the code. It's recommended to get a diagnostic from a qualified technician to determine the exact cost.

7. Are there any preventive maintenance tips to avoid triggering the OBDII code P1BA6 in my Buick?

- Regularly inspecting the hybrid/electric vehicle battery system, ensuring proper charging, and addressing any warning signs promptly can help prevent issues that lead to this code.

8. What are the potential long-term effects of ignoring the OBDII code P1BA6 in my Buick hybrid/electric vehicle?

- Ignoring this code can result in reduced performance, further damage to the hybrid/electric system, and potentially more expensive repairs down the line.

9. Can extreme weather conditions affect the OBDII code P1BA6 in a Buick hybrid/electric vehicle?

- Yes, extreme temperatures can impact the performance of the hybrid/electric vehicle battery, potentially leading to voltage issues and triggering the P1BA6 code.

10. How long does it typically take to repair the OBDII code P1BA6 in a Buick hybrid/electric vehicle?

- The repair time can vary based on the complexity of the issue causing the code. Some repairs may be quick, while others may require more extensive troubleshooting and replacement of components.