AutoCodes – Saturn – P1BF0 Saturn

P1BF0 Saturn Code - Hybrid/Electric Vehicle Battery 90 Circuit Performance

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: P1BF0 Saturn indicates Hybrid/Electric Vehicle Battery 90 Circuit Performance.
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 876

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BF0 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 P1BF0 Saturn - Hybrid/Electric Vehicle Battery 90 Circuit Performance - AutoCodes.com — P1BF0 Saturn Code - Hybrid/Electric Vehicle Battery 90 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BF0 Saturn?

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

How to Fix the DTC P1BF0 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 P1BF0 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 P1BF0 Saturn Code

1. What are the common symptoms of OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle?

- Common symptoms of this code may include reduced hybrid system performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle indicate?

- This code specifically points to an issue with the Hybrid/Electric Vehicle Battery 90 Circuit Performance, indicating a problem with the battery system.

3. What are the possible causes of OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle?

- Causes of this code may include a faulty battery pack, damaged battery cells, wiring issues in the battery circuit, or problems with the battery management system.

4. How can I diagnose the OBDII code P1BF0 in my Saturn Hybrid/Electric Vehicle?

- Diagnosing this code typically requires specialized diagnostic equipment to test the battery pack, check for voltage irregularities, and inspect the battery circuit for any faults.

5. Is it safe to continue driving with OBDII code P1BF0 present in a Saturn Hybrid/Electric Vehicle?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the hybrid system and potentially result in a loss of power while driving.

6. Can I reset the OBDII code P1BF0 in my Saturn Hybrid/Electric Vehicle by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle?

- The cost of repair can vary depending on the exact cause of the code, but it may involve replacing the battery pack, repairing wiring, or recalibrating the battery management system, potentially ranging from hundreds to thousands of dollars.

8. Are there any maintenance tips to prevent OBDII code P1BF0 from recurring in my Saturn Hybrid/Electric Vehicle?

- Regularly scheduled maintenance, such as battery inspections, ensuring proper charging habits, and addressing any warning signs promptly, can help prevent the recurrence of this code.

9. Can a DIY enthusiast fix OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric vehicle systems and the specialized equipment needed for diagnosis and repair, it is recommended to seek professional help from a certified technician experienced with hybrid vehicles.

10. How long does it typically take to repair OBDII code P1BF0 in a Saturn Hybrid/Electric Vehicle?

- The repair time can vary based on the exact cause of the code and the availability of parts, but it may take anywhere from a few hours to a few days to resolve the issue completely.