AutoCodes – Chevrolet – P0BA0 Chevrolet

P0BA0 Chevrolet Code - Hybrid/Electric Vehicle Battery 21 Circuit Performance

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: P0BA0 Chevrolet indicates Hybrid/Electric Vehicle Battery 21 Circuit Performance.
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 991

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 P0BA0 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 P0BA0 Chevrolet - Hybrid/Electric Vehicle Battery 21 Circuit Performance - AutoCodes.com — P0BA0 Chevrolet Code - Hybrid/Electric Vehicle Battery 21 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0BA0 Chevrolet?

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

How to Fix the DTC P0BA0 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 P0BA0 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 P0BA0 Chevrolet Code

1. What are the common symptoms of OBDII code P0BA0 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced electric vehicle range, poor battery performance, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code P0BA0 in a Chevrolet hybrid/electric vehicle?

- The code may be triggered by issues such as a faulty hybrid/electric vehicle battery, damaged battery circuitry, or a communication error within the battery system.

3. How can I diagnose OBDII code P0BA0 in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a specialized OBDII scanner to read the code, checking the battery connections, and performing a thorough inspection of the battery components.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with OBDII code P0BA0?

- It is not recommended to continue driving with the code active, as it can lead to further damage to the battery system and potentially affect the vehicle's performance.

5. How can I repair OBDII code P0BA0 in my Chevrolet hybrid/electric vehicle?

- Repair options may include replacing the hybrid/electric vehicle battery, repairing damaged circuitry, or reprogramming the battery system to resolve the issue.

6. Are there any DIY tips for troubleshooting OBDII code P0BA0 in a Chevrolet hybrid/electric vehicle?

- DIY tips may include checking for loose battery connections, inspecting the battery for physical damage, and ensuring proper battery cooling and ventilation.

7. Is it safe to reset the OBDII code P0BA0 in my Chevrolet hybrid/electric vehicle using a scan tool?

- While resetting the code may temporarily clear the warning light, it is important to diagnose and repair the underlying issue to prevent future problems with the battery system.

8. How much does it typically cost to repair OBDII code P0BA0 in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the extent of the damage and the specific components that need to be replaced, but it can range from a few hundred to a few thousand dollars.

9. Can OBDII code P0BA0 in a Chevrolet hybrid/electric vehicle be a recurring issue?

- If the underlying cause of the code is not properly diagnosed and repaired, it is possible for the code to reappear, leading to continued issues with the hybrid/electric vehicle battery.

10. Are there any recalls or technical service bulletins related to OBDII code P0BA0 in Chevrolet hybrid/electric vehicles?

- It is recommended to check with authorized Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code.