AutoCodes – Buick – P1BDA Buick

P1BDA Buick Code - Hybrid/Electric Vehicle Battery 82 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: P1BDA Buick indicates Hybrid/Electric Vehicle Battery 82 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.

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Code Popularity 873

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BDA 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 P1BDA Buick - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage - AutoCodes.com — P1BDA Buick Code - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BDA Buick?

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

How to Fix the DTC P1BDA 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 P1BDA 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 P1BDA Buick Code

1. What are the common symptoms of OBDII code P1BDA in a Buick Hybrid/Electric Vehicle?

The common symptoms of code P1BDA in a Buick Hybrid/Electric Vehicle include reduced fuel efficiency, decreased performance, and potential inability to start the vehicle.

2. What causes the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage code (P1BDA) in a Buick?

The P1BDA code in a Buick Hybrid/Electric Vehicle is typically caused by issues with the high voltage circuit in the vehicle's battery system.

3. How serious is the OBDII code P1BDA in a Buick Hybrid/Electric Vehicle?

Code P1BDA should be addressed promptly as it can affect the performance and efficiency of the vehicle. Ignoring this code may lead to further damage to the hybrid/electric system.

4. Can I continue driving my Buick with the P1BDA code present?

It is not recommended to continue driving your Buick with the P1BDA code present, as it can lead to further damage to the hybrid/electric system and potentially leave you stranded.

5. How can I diagnose and repair the P1BDA code in my Buick Hybrid/Electric Vehicle?

Diagnosing and repairing the P1BDA code usually requires specialized equipment and expertise. It is recommended to take your vehicle to a certified mechanic or dealership for proper diagnosis and repair.

6. Are there any DIY repair tips for the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage code in a Buick?

Due to the complexity of the hybrid/electric system, DIY repair for the P1BDA code is not recommended. It's best to seek professional help to ensure the issue is properly diagnosed and repaired.

7. Can a faulty hybrid/electric vehicle battery cause the P1BDA code in a Buick?

Yes, a faulty hybrid/electric vehicle battery or issues with the high voltage circuit can trigger the P1BDA code in a Buick Hybrid/Electric Vehicle.

8. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage code in a Buick?

The cost of repairing the P1BDA code in a Buick Hybrid/Electric Vehicle can vary depending on the underlying issue. It's best to get a diagnostic from a qualified technician for an accurate estimate.

9. Will resetting the OBDII code P1BDA make it go away permanently?

Simply resetting the P1BDA code may temporarily make it disappear, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and repair the root cause of the code.

10. Is the P1BDA code specific to Buick Hybrid/Electric Vehicles, or can it occur in other vehicles as well?

The P1BDA code is specific to Buick Hybrid/Electric Vehicles, as it pertains to issues within the hybrid/electric system of these vehicles. Other vehicles may have different codes for similar issues.