AutoCodes – Saturn – P0BB6 Saturn

P0BB6 Saturn Code - Hybrid/Electric Vehicle Battery 25 Circuit High 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: P0BB6 Saturn indicates Hybrid/Electric Vehicle Battery 25 Circuit High 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 787

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 P0BB6 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 P0BB6 Saturn - Hybrid/Electric Vehicle Battery 25 Circuit High Voltage - AutoCodes.com — P0BB6 Saturn Code - Hybrid/Electric Vehicle Battery 25 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0BB6 Saturn?

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

How to Fix the DTC P0BB6 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 P0BB6 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 P0BB6 Saturn Code

What does the OBDII code P0BB6 indicate for a Saturn vehicle?

The OBDII code P0BB6 indicates a high voltage condition in the Hybrid/Electric Vehicle Battery 25 circuit, which can lead to performance issues in hybrid or electric vehicles.

What are the common symptoms of the P0BB6 code?

Common symptoms may include a warning light on the dashboard, reduced vehicle performance, and potential issues with charging or discharging the hybrid battery.

What could cause the P0BB6 code to trigger?

Causes can include a faulty battery pack, issues with the battery management system, damaged wiring or connectors, or a malfunctioning high-voltage relay.

How can I diagnose the P0BB6 code?

To diagnose the P0BB6 code, use an OBDII scanner to confirm the code and check for any accompanying codes. Inspect the high voltage battery connections, wiring, and the battery management system for any visible damage.

What repairs might be necessary for a P0BB6 code?

Repairs could involve replacing damaged wiring or connectors, servicing or replacing the hybrid battery pack, or replacing the battery management system components.

Can I drive my Saturn if the P0BB6 code is present?

It is not advisable to drive your Saturn if the P0BB6 code is present, as it can lead to further battery damage and affect vehicle safety and performance.

How do I reset the P0BB6 code after repairs?

To reset the P0BB6 code, you can use an OBDII scanner to clear the code after performing the necessary repairs, or disconnect the car battery for a few minutes, then reconnect it.

Is it safe to work on hybrid battery systems myself?

Working on hybrid battery systems can be dangerous due to high voltage. It is recommended to seek professional assistance if you are not experienced in hybrid vehicle repairs.

What is the cost to repair issues related to the P0BB6 code?

Repair costs can vary widely depending on the cause of the issue, but replacing a hybrid battery can range from $1,500 to $6,000, while wiring repairs might be less expensive.

How often should I have the hybrid battery system checked?

It is a good practice to have the hybrid battery system checked during regular vehicle maintenance, typically every 30,000 miles or as recommended by your vehicle manufacturer.