AutoCodes – Generic – P1BBA

P1BBA 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 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 1,306

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

What does this mean?

What are the Possible Causes of the DTC P1BBA?

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

How to Fix the DTC P1BBA?

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 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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Need Help with the Code?

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Information for Specific Makes

P1BBA Buick — Hybrid/Electric Vehicle Battery 72 Circuit Performance
P1BBA Cadillac — Hybrid/Electric Vehicle Battery 72 Circuit Performance
P1BBA Chevrolet — Hybrid/Electric Vehicle Battery 72 Circuit Performance
P1BBA GMC — Hybrid/Electric Vehicle Battery 72 Circuit Performance
P1BBA Saturn — Hybrid/Electric Vehicle Battery 72 Circuit Performance

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 Code

1. What are the common symptoms of OBDII code P1BBA (Hybrid/Electric Vehicle Battery 72 Circuit Performance)?

- Common symptoms include reduced hybrid/electric vehicle performance, poor fuel efficiency, and potential issues with starting or charging the vehicle.

2. What are the possible causes of OBDII code P1BBA?

- The code P1BBA can be triggered by issues such as a faulty battery pack, damaged high-voltage wiring, software glitches, or problems with the battery management system.

3. How can I diagnose the cause of OBDII code P1BBA?

- Diagnosis typically involves using a scan tool to retrieve the trouble codes, testing the battery pack and high-voltage wiring for continuity and voltage, and checking the battery management system for any faults.

4. Can I repair OBDII code P1BBA on my own?

- While some DIY enthusiasts may attempt to diagnose and repair this code, it is recommended to seek professional help due to the high voltage nature of the system and the complexity of hybrid/electric vehicle components.

5. What are some tips for repairing OBDII code P1BBA?

- Tips for repairing this code may include checking and tightening high-voltage connections, updating software as per manufacturer recommendations, and ensuring proper maintenance of the battery pack.

6. Is it safe to continue driving with OBDII code P1BBA present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the hybrid/electric vehicle components and potentially compromise safety.

7. How much does it typically cost to repair OBDII code P1BBA?

- The repair costs for OBDII code P1BBA can vary significantly depending on the underlying cause, the extent of the damage, and the labor rates of the repair facility. It is advisable to obtain multiple quotes for an accurate estimate.

8. Can a low battery state of charge trigger OBDII code P1BBA?

- Yes, a low battery state of charge can be one of the factors that trigger code P1BBA, as it can affect the overall performance and health of the hybrid/electric vehicle battery system.

9. Will resetting the OBDII code P1BBA make it go away permanently?

- Resetting the code may temporarily clear it from the system, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause of the code for a permanent fix.

10. Are there any recalls or technical service bulletins related to OBDII code P1BBA?

- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to OBDII code P1BBA, as they may provide valuable information on known issues and recommended solutions.