AutoCodes – Chevrolet – P1BBA Chevrolet

P1BBA Chevrolet Code - Hybrid/Electric Vehicle Battery 72 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: P1BBA Chevrolet indicates Hybrid/Electric Vehicle Battery 72 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 858

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 P1BBA 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 P1BBA Chevrolet - Hybrid/Electric Vehicle Battery 72 Circuit Performance - AutoCodes.com — P1BBA Chevrolet Code - Hybrid/Electric Vehicle Battery 72 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BBA Chevrolet?

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

How to Fix the DTC P1BBA 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 P1BBA 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 P1BBA Chevrolet Code

1. What are the common symptoms of OBDII code P1BBA in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced battery performance, decreased fuel efficiency, and potential issues with vehicle acceleration.

2. What could cause the OBDII code P1BBA to trigger in a Chevrolet hybrid/electric vehicle?

- The code P1BBA is typically triggered by issues with the hybrid/electric vehicle battery 72 circuit, such as wiring faults, connector problems, or battery pack issues.

3. How can I diagnose the OBDII code P1BBA in my Chevrolet hybrid/electric vehicle?

- Diagnosing code P1BBA involves using an OBDII scanner to read the fault code, inspecting the battery 72 circuit components, and checking for any visible damage or loose connections.

4. What are some repair tips for resolving OBDII code P1BBA in a Chevrolet hybrid/electric vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty connectors, resetting the battery management system, or replacing the battery pack if necessary.

5. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P1BBA present?

- It is not recommended to continue driving the vehicle with the P1BBA code present, as it could lead to further damage to the battery system and affect the vehicle's performance.

6. How much does it typically cost to repair OBDII code P1BBA in a Chevrolet hybrid/electric vehicle?

- The cost of repairing code P1BBA can vary depending on the extent of the issue, but it may range from a few hundred to a few thousand dollars, especially if battery pack replacement is required.

7. Are there any preventive maintenance measures to avoid OBDII code P1BBA in a Chevrolet hybrid/electric vehicle?

- Regularly inspecting the battery system, keeping the connectors clean and secure, and following the manufacturer's recommended maintenance schedule can help prevent issues leading to code P1BBA.

8. How long does it typically take to repair OBDII code P1BBA in a Chevrolet hybrid/electric vehicle?

- The repair time for code P1BBA can vary based on the specific issue, but it may take a few hours to a full day for diagnosis and repair, especially if complex repairs are needed.

9. Can a DIY enthusiast address the OBDII code P1BBA issue in a Chevrolet hybrid/electric vehicle?

- While some basic inspections and repairs can be done by a DIY enthusiast, diagnosing and repairing code P1BBA may require specialized tools and expertise, so professional assistance is recommended.

10. Will resetting the OBDII codes clear the P1BBA code in a Chevrolet hybrid/electric vehicle?

- Resetting the OBDII codes may temporarily clear the P1BBA code, but it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring.