AutoCodes – Saturn – P1BB3 Saturn

P1BB3 Saturn Code - Hybrid/Electric Vehicle Battery 69 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: P1BB3 Saturn indicates Hybrid/Electric Vehicle Battery 69 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 1,032

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 P1BB3 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 P1BB3 Saturn - Hybrid/Electric Vehicle Battery 69 Circuit High Voltage - AutoCodes.com — P1BB3 Saturn Code - Hybrid/Electric Vehicle Battery 69 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BB3 Saturn?

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

How to Fix the DTC P1BB3 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 P1BB3 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 P1BB3 Saturn Code

What does OBDII code P1BB3 indicate for my Saturn?

OBDII code P1BB3 indicates a problem with the Hybrid/Electric Vehicle Battery 69 circuit, specifically that it has detected a high voltage condition.

What are common symptoms of the P1BB3 code?

Common symptoms may include warning lights on the dashboard, reduced power, poor fuel economy, and potential issues with hybrid system performance.

What could cause the P1BB3 code to trigger?

Causes can include faulty battery management system (BMS) components, damaged wiring or connectors in the battery circuit, or issues with the hybrid battery itself.

How can I diagnose the P1BB3 code?

To diagnose P1BB3, check the vehicleâ€™s battery voltage, inspect wiring and connectors for damage, and use a scan tool to look for additional codes that may provide more information.

Can I drive my Saturn with the P1BB3 code?

It's not recommended to drive the vehicle with this code, as it may lead to reduced performance or further damage to the hybrid system.

What repairs are typically needed for a P1BB3 code?

Repairs may involve replacing or repairing damaged wiring, replacing faulty BMS components, or, in some cases, replacing the hybrid battery itself.

Is it safe to work on the hybrid battery system myself?

Working on the hybrid battery system can be dangerous due to high voltage. It is advised to have repairs performed by a qualified technician familiar with hybrid vehicles.

How can I reset the P1BB3 code after repairs?

The code can typically be reset using an OBDII scanner after addressing the underlying issue. However, ensure all repairs are completed before clearing the code.

What should I do if the P1BB3 code keeps reappearing?

If the P1BB3 code keeps reappearing, further diagnostics may be necessary to identify any underlying issues that weren't initially addressed, and you should consult a professional mechanic.