AutoCodes – Chevrolet – P0BAF Chevrolet

P0BAF Chevrolet Code - Hybrid/Electric Vehicle Battery 24 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: P0BAF Chevrolet indicates Hybrid/Electric Vehicle Battery 24 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 897

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 P0BAF 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 P0BAF Chevrolet - Hybrid/Electric Vehicle Battery 24 Circuit Performance - AutoCodes.com — P0BAF Chevrolet Code - Hybrid/Electric Vehicle Battery 24 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0BAF Chevrolet?

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

How to Fix the DTC P0BAF 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 P0BAF 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 P0BAF Chevrolet Code

1. What are the common symptoms of OBDII code P0BAF in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced fuel efficiency, difficulty starting the vehicle, decreased power output, and the illumination of the check engine light.

2. What could cause the OBDII code P0BAF in a Chevrolet hybrid/electric vehicle?

- The code P0BAF typically indicates an issue with the Hybrid/Electric Vehicle Battery 24 Circuit Performance, which may be due to a faulty battery module, wiring issues, or problems with the battery management system.

3. How can I diagnose the OBDII code P0BAF in my Chevrolet hybrid/electric vehicle?

- Diagnosing the code P0BAF usually involves using an OBDII scanner to retrieve the specific fault codes, inspecting the battery connections and wiring, and testing the battery modules for proper voltage and performance.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P0BAF?

- It is not recommended to continue driving your vehicle with the P0BAF code present, as it can lead to further damage to the battery system and potentially unsafe driving conditions. It's best to have the issue diagnosed and repaired promptly.

5. How can I repair the OBDII code P0BAF in my Chevrolet hybrid/electric vehicle?

- Repairing the P0BAF code may involve replacing a faulty battery module, repairing damaged wiring, recalibrating the battery management system, or updating the vehicle's software. It is recommended to consult a qualified technician for proper diagnosis and repair.

6. Are there any DIY tips for troubleshooting the OBDII code P0BAF in a Chevrolet hybrid/electric vehicle?

- While basic troubleshooting steps like checking battery connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the P0BAF code often requires specialized tools and knowledge. It is recommended to seek professional help for accurate diagnosis and repair.

7. How much does it typically cost to repair the OBDII code P0BAF in a Chevrolet hybrid/electric vehicle?

- The cost of repairing the P0BAF code can vary depending on the root cause of the issue, the extent of the repairs needed, and labor costs. It is advisable to obtain a diagnosis and cost estimate from a reputable automotive technician or dealership.

8. Is the OBDII code P0BAF specific to Chevrolet hybrid/electric vehicles only?

- The OBDII code P0BAF related to Hybrid/Electric Vehicle Battery 24 Circuit Performance is specific to hybrid and electric vehicles, including Chevrolet models. Other vehicle brands may have different fault codes related to similar issues.

9. Can extreme weather conditions affect the occurrence of the OBDII code P0BAF in a Chevrolet hybrid/electric vehicle?

- Yes, extreme temperatures can impact the performance of hybrid/electric vehicle batteries, potentially leading to issues like the P0BAF code. It's essential to monitor battery health and performance in varying weather conditions.

10. How often should I have the battery system in my Chevrolet hybrid/electric vehicle inspected to prevent the OBDII code P0BAF?

- Regular maintenance and inspections of the battery system in your Chevrolet hybrid/electric vehicle are crucial to prevent issues like the P0BAF code. It is recommended to follow the manufacturer's maintenance schedule and have the battery system checked during routine service appointments.