AutoCodes – Saturn – P1BB6 Saturn

P1BB6 Saturn Code - Hybrid/Electric Vehicle Battery 70 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: P1BB6 Saturn indicates Hybrid/Electric Vehicle Battery 70 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 808

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 P1BB6 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 P1BB6 Saturn - Hybrid/Electric Vehicle Battery 70 Circuit High Voltage - AutoCodes.com — P1BB6 Saturn Code - Hybrid/Electric Vehicle Battery 70 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BB6 Saturn?

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

How to Fix the DTC P1BB6 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 P1BB6 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 P1BB6 Saturn Code

What does OBDII code P1BB6 on a Saturn mean?

Code P1BB6 indicates a "Hybrid/Electric Vehicle Battery 70 Circuit High Voltage," meaning the battery management system has detected an unusually high voltage in circuit 70.

What are the symptoms of the P1BB6 code?

Common symptoms include reduced hybrid or electric vehicle performance, illuminated check engine light, decreased battery efficiency, and potential failure to charge properly.

What causes the P1BB6 code on a Saturn?

The code can be triggered by issues such as a faulty battery module, damaged wiring in circuit 70, poor electrical connections, or a malfunctioning battery control module.

Can I drive my Saturn with the P1BB6 code?

Driving may be possible but is not recommended as it can lead to further damage to the hybrid battery system or reduced vehicle performance.

How can I diagnose the P1BB6 code?

Diagnosis typically involves using a scan tool to verify the code, inspecting circuit 70 wiring and connections for damage, and testing the battery control module.

What repairs can fix the P1BB6 code?

Repairs may include replacing damaged wiring, fixing loose connections, updating the battery control module software, or replacing the faulty hybrid battery module.

How much does it cost to fix the P1BB6 code?

Repair costs vary depending on the cause but can range from $200 for wiring repairs to over $1,000 for hybrid battery module replacement.

Do I need specialized tools to fix the P1BB6 code?

Yes, diagnosing and repairing this code often requires specialized diagnostic equipment and tools tailored to hybrid or electric vehicle systems.

Can a dead 12V battery trigger the P1BB6 code?

While unlikely, a weak or failing 12V auxiliary battery can sometimes cause electrical issues that mimic hybrid system faults.

Should I take my Saturn to a dealership for the P1BB6 code?

Itâ€™s recommended to visit a dealership or qualified technician with experience in hybrid and electric vehicle systems for accurate diagnosis and repair.