AutoCodes – Saturn – P0BB0 Saturn

P0BB0 Saturn Code - Hybrid/Electric Vehicle Battery 24 Circuit Low 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: P0BB0 Saturn indicates Hybrid/Electric Vehicle Battery 24 Circuit Low 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 1,237

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 P0BB0 Saturn 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 P0BB0 Saturn - Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage - AutoCodes.com — P0BB0 Saturn Code - Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BB0 Saturn?

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

How to Fix the DTC P0BB0 Saturn?

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 P0BB0 Saturn 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 P0BB0 Saturn Code

1. What are the common symptoms of OBDII code P0BB0 on a Saturn Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, poor fuel economy, and potential issues with starting the vehicle.

2. What can cause the Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage error code on a Saturn?

- The error code P0BB0 can be triggered by issues such as a faulty hybrid battery, damaged battery wiring, or a problem with the battery control module.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage code on my Saturn?

- Diagnosing this code involves using a scan tool to check for any additional trouble codes, inspecting the hybrid battery connections, and testing the voltage levels of the battery.

4. Can I drive my Saturn with the P0BB0 code present?

- It is not recommended to drive your Saturn with the P0BB0 code as it may lead to further damage to the hybrid system and potentially leave you stranded.

5. How can I repair the Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage issue on my Saturn?

- Repairing this issue may involve replacing the hybrid battery, repairing any damaged wiring, or reprogramming the battery control module to resolve the voltage issue.

6. Is it safe to attempt DIY repairs for the P0BB0 code on a Saturn Hybrid/Electric Vehicle?

- Due to the complexity of hybrid vehicle systems, it is recommended to seek professional help when dealing with the P0BB0 code to ensure proper diagnosis and repair.

7. Can resetting the error code P0BB0 on my Saturn clear the issue?

- Simply resetting the error code may temporarily clear the warning light, but it is important to address the underlying cause to prevent the code from reoccurring.

8. Are there any maintenance tips to prevent the Hybrid/Electric Vehicle Battery 24 Circuit Low Voltage code on a Saturn?

- Regularly inspecting the hybrid battery connections, ensuring proper charging habits, and following the manufacturer's maintenance schedule can help prevent this code from appearing.

9. How much does it typically cost to repair the P0BB0 code on a Saturn Hybrid/Electric Vehicle?

- The cost of repairing the P0BB0 code can vary depending on the underlying issue, but it may range from a few hundred to a few thousand dollars, especially if the hybrid battery needs replacement.

10. Can the P0BB0 code be a false alarm on a Saturn Hybrid/Electric Vehicle?

- While rare, false alarms for the P0BB0 code can occur due to temporary voltage fluctuations. It is still important to have the system checked by a professional to rule out any serious issues.