AutoCodes – Saturn – P0BAA Saturn

P0BAA Saturn Code - Hybrid/Electric Vehicle Battery 23 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: P0BAA Saturn indicates Hybrid/Electric Vehicle Battery 23 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 804

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 P0BAA 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 P0BAA Saturn - Hybrid/Electric Vehicle Battery 23 Circuit Performance - AutoCodes.com — P0BAA Saturn Code - Hybrid/Electric Vehicle Battery 23 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0BAA Saturn?

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

How to Fix the DTC P0BAA 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 P0BAA 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 P0BAA Saturn Code

1. What are the common symptoms of OBDII code P0BAA in a Saturn hybrid/electric vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, and potential issues with the hybrid/electric system.

2. What can cause the OBDII code P0BAA in a Saturn hybrid/electric vehicle?

- This code is often triggered by issues such as a failing hybrid/electric vehicle battery, faulty wiring, or problems with the battery control module.

3. How can I diagnose the OBDII code P0BAA in my Saturn hybrid/electric vehicle?

- Diagnosis typically involves using a diagnostic scanner to read the code, checking the battery voltage levels, and inspecting the wiring connections for any damage.

4. Is it safe to continue driving my Saturn with the OBDII code P0BAA present?

- It is not recommended to continue driving with this code as it can lead to further damage to the hybrid/electric system and may result in a loss of power while driving.

5. Can I reset the OBDII code P0BAA in my Saturn hybrid/electric vehicle on my own?

- While you can attempt to clear the code with a diagnostic scanner, it is crucial to address the underlying issue causing the code to prevent it from recurring.

6. What are some repair tips for fixing the OBDII code P0BAA in a Saturn hybrid/electric vehicle?

- Repair tips may include replacing the hybrid/electric vehicle battery, repairing any damaged wiring, or reprogramming the battery control module.

7. How much does it typically cost to repair the OBDII code P0BAA in a Saturn hybrid/electric vehicle?

- Costs can vary depending on the specific issue, but repairs related to this code can range from a few hundred to a few thousand dollars, especially if the hybrid/electric battery needs replacement.

8. Are there any recalls or technical service bulletins related to the OBDII code P0BAA in Saturn vehicles?

- It is advisable to check with your local Saturn dealership or the manufacturer's website for any relevant recalls or technical service bulletins related to this issue.

9. Can a DIY enthusiast with automotive experience fix the OBDII code P0BAA in a Saturn hybrid/electric vehicle?

- While some repairs may be possible for experienced DIY enthusiasts, diagnosing and fixing issues related to the hybrid/electric system can be complex and may require specialized tools and knowledge.

10. How can I prevent the OBDII code P0BAA from occurring in my Saturn hybrid/electric vehicle?

- Regular maintenance, such as checking the battery health, ensuring proper wiring connections, and following the manufacturer's guidelines, can help prevent issues leading to this OBDII code.