AutoCodes – Saturn – P1BA2 Saturn

P1BA2 Saturn Code - Hybrid/Electric Vehicle Battery 64 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: P1BA2 Saturn indicates Hybrid/Electric Vehicle Battery 64 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 825

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1BA2 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 P1BA2 Saturn - Hybrid/Electric Vehicle Battery 64 Circuit Performance - AutoCodes.com — P1BA2 Saturn Code - Hybrid/Electric Vehicle Battery 64 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BA2 Saturn?

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

How to Fix the DTC P1BA2 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 P1BA2 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.

Need more information about the P1BA2 Saturn code?

Need more information on how to fix the P1BA2 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BA2 Saturn code diagnosed by a professional: Find a repair shop in your area

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 P1BA2 Saturn Code

1. What does OBDII code P1BA2 for Saturn Hybrid/Electric Vehicle Battery 64 Circuit Performance indicate?

The code P1BA2 suggests that there is a performance issue with the 64th circuit of the hybrid/electric vehicle battery in a Saturn vehicle.

2. What are the common symptoms of OBDII code P1BA2 in a Saturn hybrid/electric vehicle?

Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential issues with the vehicle's battery charging system.

3. What are the possible causes of OBDII code P1BA2 in a Saturn hybrid/electric vehicle?

Causes can range from a faulty battery cell in the 64th circuit, a malfunctioning battery management system, to issues with the battery cooling system.

4. How can I diagnose the source of OBDII code P1BA2 in my Saturn hybrid/electric vehicle?

Diagnosis typically involves conducting a thorough inspection of the battery pack, checking for loose connections, testing individual battery cells, and using specialized diagnostic tools to analyze the battery system.

5. Is it safe to continue driving my Saturn with OBDII code P1BA2 present?

It is recommended to have the issue addressed promptly to prevent further damage to the hybrid/electric system. Continued driving with this code present may lead to more severe problems down the line.

6. Can I reset the OBDII code P1BA2 in my Saturn hybrid/electric vehicle myself?

While you can clear the code with an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. Are there any temporary fixes or workarounds for OBDII code P1BA2 in a Saturn hybrid/electric vehicle?

Temporary fixes are not recommended, as addressing the root cause of the code is essential for the overall health and performance of the hybrid/electric system.

8. How much does it typically cost to repair OBDII code P1BA2 in a Saturn hybrid/electric vehicle?

The cost of repair can vary depending on the exact cause of the code, parts needed, and labor costs. It is advisable to consult with a qualified mechanic for an accurate estimate.

9. Can I prevent OBDII code P1BA2 from appearing in my Saturn hybrid/electric vehicle?

Regular maintenance, monitoring the health of the hybrid/electric system, and addressing any issues promptly can help prevent the occurrence of code P1BA2 in your Saturn vehicle.

10. Is the repair for OBDII code P1BA2 covered under warranty for Saturn hybrid/electric vehicles?

Warranty coverage for this repair depends on the specific terms of your vehicle's warranty. It is advisable to check with your manufacturer or dealership for warranty information related to the hybrid/electric system.