AutoCodes – Chevrolet – P1BDA Chevrolet

P1BDA Chevrolet 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 Chevrolet 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 759

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 Chevrolet 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 Chevrolet - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage - AutoCodes.com — P1BDA Chevrolet Code - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BDA Chevrolet?

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

How to Fix the DTC P1BDA Chevrolet?

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 Chevrolet 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 Chevrolet Code

1. What are common symptoms of OBDII code P1BDA in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced vehicle performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What does the OBDII code P1BDA Chevrolet Hybrid/Electric Vehicle Battery 82 Circuit High Voltage indicate?

- This code indicates a potential issue with the high voltage circuit in the hybrid/electric vehicle battery system.

3. What are some possible causes of the P1BDA code in a Chevrolet hybrid/electric vehicle?

- Possible causes include a faulty battery pack, damaged high voltage cables, poor electrical connections, or issues with the battery management system.

4. How can I diagnose the OBDII code P1BDA in my Chevrolet hybrid/electric vehicle?

- Diagnosing the code typically involves using a scan tool to read the code and inspecting the high voltage components for any visible damage or issues.

5. Can I continue driving my Chevrolet hybrid/electric vehicle with the P1BDA code present?

- It is not recommended to continue driving the vehicle with this code as it can lead to further damage to the high voltage system and potentially unsafe driving conditions.

6. How can I repair the P1BDA code in my Chevrolet hybrid/electric vehicle?

- Repairing the code may involve replacing the faulty battery components, repairing damaged wiring or connections, or resetting the battery management system.

7. Is it safe to attempt repairs on the high voltage system related to the P1BDA code?

- Repairs on the high voltage system should only be attempted by qualified technicians familiar with hybrid/electric vehicle systems to ensure safety and proper repair procedures are followed.

8. How often should I have the high voltage system in my Chevrolet hybrid/electric vehicle inspected to prevent the P1BDA code from appearing?

- It is recommended to have the high voltage system inspected regularly as part of routine maintenance to catch any potential issues before they trigger the P1BDA code.

9. Are there any maintenance tips to help prevent the occurrence of the P1BDA code in my Chevrolet hybrid/electric vehicle?

- Regularly inspecting the high voltage system, keeping the battery pack clean and well-maintained, and following manufacturer's maintenance guidelines can help prevent the P1BDA code from appearing.

10. Can the P1BDA code be triggered by environmental factors or extreme weather conditions?

- While rare, extreme weather conditions or environmental factors such as water exposure or extreme temperatures can potentially trigger the P1BDA code in a Chevrolet hybrid/electric vehicle.