AutoCodes – Saturn – P1BFD Saturn

P1BFD Saturn Code - Hybrid/Electric Vehicle Battery 94 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: P1BFD Saturn indicates Hybrid/Electric Vehicle Battery 94 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 837

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 P1BFD 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 P1BFD Saturn - Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage - AutoCodes.com — P1BFD Saturn Code - Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BFD Saturn?

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

How to Fix the DTC P1BFD 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 P1BFD 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 P1BFD Saturn Code

1. What are the common symptoms of OBDII code P1BFD in a Saturn Hybrid/Electric Vehicle?

- Common symptoms include reduced electric drive performance, difficulty starting the vehicle, and potential illumination of the hybrid system warning light.

2. What are the possible causes of the Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage code in a Saturn?

- The code P1BFD in a Saturn may be triggered by a weak or failing hybrid/electric vehicle battery, damaged wiring or connections, or a faulty battery management system.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage issue in my Saturn?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, checking the state of charge and health of the hybrid battery, inspecting wiring and connections for damage, and testing the battery management system.

4. Can I continue driving my Saturn with the P1BFD code present?

- It is not recommended to continue driving with the P1BFD code as it may lead to further damage to the hybrid/electric system and potentially leave you stranded if the battery fails completely.

5. How can I repair the Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage issue in my Saturn?

- Repair options may include replacing the hybrid/electric vehicle battery, repairing any damaged wiring or connections, or recalibrating the battery management system.

6. Is it safe to attempt DIY repairs for the P1BFD code in a Saturn Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric vehicle systems and high-voltage components, it is recommended to seek professional help for diagnosis and repair of the P1BFD code.

7. How much does it cost to fix the Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage issue in a Saturn?

- Repair costs for the P1BFD code can vary depending on the specific cause of the issue, but it may range from a few hundred to several thousand dollars for battery replacement or system repairs.

8. Can a low 12-volt battery be a potential cause of the P1BFD code in a Saturn Hybrid/Electric Vehicle?

- Yes, a weak or failing 12-volt battery can sometimes trigger the P1BFD code due to its impact on the overall electrical system and ability to maintain proper voltage levels.

9. What steps can I take to prevent the recurrence of the Hybrid/Electric Vehicle Battery 94 Circuit Low Voltage code in my Saturn?

- Regularly maintaining and monitoring the hybrid/electric vehicle battery health, ensuring proper charging habits, and addressing any warning signs promptly can help prevent the P1BFD code from reoccurring.

10. Will resetting the fault code using a scan tool temporarily solve the P1BFD issue in a Saturn?

- While resetting the fault code may temporarily clear the warning light, it will not address the underlying cause of the P1BFD code, and the issue is likely to reappear until properly diagnosed and repaired.