AutoCodes – Saturn – P1BB5 Saturn

P1BB5 Saturn Code - Hybrid/Electric Vehicle Battery 70 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: P1BB5 Saturn indicates Hybrid/Electric Vehicle Battery 70 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 805

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 P1BB5 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 P1BB5 Saturn - Hybrid/Electric Vehicle Battery 70 Circuit Low Voltage - AutoCodes.com — P1BB5 Saturn Code - Hybrid/Electric Vehicle Battery 70 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BB5 Saturn?

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

How to Fix the DTC P1BB5 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 P1BB5 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 P1BB5 Saturn Code

1. What are the common symptoms of OBDII code P1BB5 on a Saturn Hybrid/Electric Vehicle?

- Common symptoms include reduced power and performance, difficulty starting the vehicle, and potential dashboard warning lights related to the hybrid/electric battery system.

2. What can cause the OBDII code P1BB5 indicating Hybrid/Electric Vehicle Battery 70 Circuit Low Voltage on a Saturn?

- The code P1BB5 on a Saturn typically indicates low voltage in the Hybrid/Electric Vehicle Battery 70 Circuit, which can be caused by a failing battery, poor electrical connections, or issues with the battery management system.

3. How can I diagnose the OBDII code P1BB5 on my Saturn Hybrid/Electric Vehicle?

- Diagnosing the P1BB5 code may require a professional scan tool to read the specific voltage levels in the Hybrid/Electric Vehicle Battery 70 Circuit. Checking the battery health and connections is also recommended.

4. Can I still drive my Saturn with the OBDII code P1BB5 present?

- It is not recommended to drive the vehicle with the P1BB5 code present, as it indicates potential issues with the hybrid/electric battery system that could lead to further damage or safety hazards.

5. What are some repair tips for resolving the OBDII code P1BB5 on a Saturn Hybrid/Electric Vehicle?

- Repair tips may include checking and cleaning electrical connections, testing the hybrid/electric battery for proper voltage levels, and consulting a professional technician for further diagnosis and repair.

6. Is it safe to attempt DIY repairs for the OBDII code P1BB5 on a Saturn Hybrid/Electric Vehicle?

- Due to the complex nature of hybrid/electric vehicle systems, DIY repairs for the P1BB5 code are not recommended. It's best to seek assistance from a qualified technician with experience in hybrid/electric vehicle diagnostics and repairs.

7. How much does it typically cost to repair the OBDII code P1BB5 on a Saturn Hybrid/Electric Vehicle?

- The cost of repairing the P1BB5 code can vary depending on the underlying cause of the issue. Costs may include diagnostic fees, parts replacement, and labor, so it's advisable to obtain quotes from multiple reputable repair shops.

8. Can a low 12-volt battery cause the OBDII code P1BB5 to appear on a Saturn Hybrid/Electric Vehicle?

- Yes, a low 12-volt battery can sometimes trigger the P1BB5 code due to insufficient power supply to the hybrid/electric battery system. Ensuring the 12-volt battery is in good condition is important for proper functioning of the vehicle.

9. Will disconnecting the hybrid/electric battery reset the OBDII code P1BB5 on a Saturn?

- Disconnecting the hybrid/electric battery may temporarily clear the code, but it is not a recommended solution as the underlying issue causing the P1BB5 code will likely reappear. Proper diagnosis and repair are necessary to address the root cause.

10. How long can I safely drive my Saturn with the OBDII code P1BB5 before getting it repaired?

- It is recommended to address the P1BB5 code promptly to avoid potential further damage to the hybrid/electric battery system. Continuing to drive the vehicle with this code present can lead to more serious issues and potentially unsafe driving conditions.