AutoCodes – Saturn – P1BFB Saturn

P1BFB Saturn Code - Hybrid/Electric Vehicle Battery 93 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: P1BFB Saturn indicates Hybrid/Electric Vehicle Battery 93 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 858

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 P1BFB 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 P1BFB Saturn - Hybrid/Electric Vehicle Battery 93 Circuit High Voltage - AutoCodes.com — P1BFB Saturn Code - Hybrid/Electric Vehicle Battery 93 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BFB Saturn?

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

How to Fix the DTC P1BFB 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 P1BFB 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 P1BFB Saturn Code

1. What are common symptoms of OBDII code P1BFB in a Saturn hybrid/electric vehicle?

- Common symptoms include illuminated check engine light, reduced hybrid system performance, and potential loss of power.

2. What does the OBDII code P1BFB "Hybrid/Electric Vehicle Battery 93 Circuit High Voltage" indicate in a Saturn vehicle?

- This code indicates that there is a high voltage condition detected in the circuit related to the hybrid/electric vehicle battery.

3. What are some possible causes of OBDII code P1BFB in a Saturn hybrid/electric vehicle?

- Possible causes include a malfunctioning battery pack, faulty battery management system, issues with high voltage wiring, or a problem with the hybrid system control module.

4. How can I diagnose the source of OBDII code P1BFB in my Saturn hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting the high voltage components, checking the battery voltage levels, and testing the battery management system.

5. Is it safe to continue driving my Saturn vehicle with the OBDII code P1BFB present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid system components and potentially pose a safety risk.

6. Can I reset the OBDII code P1BFB in my Saturn hybrid/electric vehicle myself?

- While you can reset the code using an OBDII scan tool, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. What are some repair tips for addressing OBDII code P1BFB in a Saturn vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing a faulty battery pack, recalibrating the battery management system, or reprogramming the hybrid system control module.

8. How much does it typically cost to repair OBDII code P1BFB in a Saturn hybrid/electric vehicle?

- The cost of repairs can vary depending on the specific cause of the code, but it may range from a few hundred to a few thousand dollars, especially if major components need to be replaced.

9. Are there any maintenance tasks I can perform to prevent OBDII code P1BFB in my Saturn hybrid/electric vehicle?

- Regularly inspecting the high voltage components, ensuring proper battery maintenance, and following the manufacturer's recommended service schedule can help prevent issues leading to this code.

10. Can a local mechanic or dealership service center help me address OBDII code P1BFB in my Saturn hybrid/electric vehicle?

- Yes, experienced technicians at a local mechanic or dealership service center should be able to diagnose and repair the issue causing the OBDII code P1BFB in your Saturn vehicle.