AutoCodes – Saturn – P1BA6 Saturn

P1BA6 Saturn Code - Hybrid/Electric Vehicle Battery 65 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: P1BA6 Saturn indicates Hybrid/Electric Vehicle Battery 65 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 780

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 P1BA6 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 P1BA6 Saturn - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage - AutoCodes.com — P1BA6 Saturn Code - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BA6 Saturn?

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

How to Fix the DTC P1BA6 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 P1BA6 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 P1BA6 Saturn Code

1. What does the OBDII code P1BA6 mean on a Saturn vehicle?

P1BA6 indicates a low voltage issue in the Hybrid/Electric Vehicle Battery 65 circuit, which is part of the vehicleâ€™s high-voltage battery system.

2. What are the common symptoms of the P1BA6 code?

Symptoms may include an illuminated check engine light, reduced vehicle performance, limited electric drive operation, or the vehicle entering limp mode.

3. What causes the P1BA6 code to appear?

Common causes include a malfunctioning battery control module, damaged wiring or connectors, a faulty battery cell, or poor electrical connections in the battery system.

4. Can I drive my Saturn with the P1BA6 code?

Driving with the P1BA6 code is not recommended, as it may lead to further damage to the hybrid/electric system or cause the vehicle to operate in a restricted mode.

5. How is the P1BA6 code diagnosed?

A technician will use a scan tool to retrieve the code, inspect the battery system wiring and connectors, check the voltage readings, and test the battery control module for proper functionality.

6. What repairs can fix the P1BA6 code?

Repairs may include replacing damaged wiring, repairing poor electrical connections, replacing a faulty battery control module, or repairing or replacing the affected battery cell.

7. How much does it cost to repair the P1BA6 code on a Saturn?

Costs vary depending on the issue, but repairs can range from $200 for basic wiring fixes to over $1,000 for battery module or cell replacement.

8. Can a low 12-volt battery cause the P1BA6 code?

While the 12-volt battery is not directly linked to this code, a weak or failing 12-volt battery can sometimes contribute to hybrid system errors and should be checked.

9. Does the P1BA6 code require reprogramming the battery control module?

In some cases, reprogramming or updating the battery control module software may be necessary if a software issue is contributing to the code.

10. How can I prevent the P1BA6 code from reoccurring?

Regular maintenance of the hybrid battery system, ensuring good electrical connections, and promptly addressing any system warnings can help prevent this code from returning.