AutoCodes – Saturn – P1BF2 Saturn

P1BF2 Saturn Code - Hybrid/Electric Vehicle Battery 90 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: P1BF2 Saturn indicates Hybrid/Electric Vehicle Battery 90 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 777

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 P1BF2 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 P1BF2 Saturn - Hybrid/Electric Vehicle Battery 90 Circuit High Voltage - AutoCodes.com — P1BF2 Saturn Code - Hybrid/Electric Vehicle Battery 90 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BF2 Saturn?

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

How to Fix the DTC P1BF2 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 P1BF2 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 P1BF2 Saturn Code

1. What are the common symptoms of OBDII code P1BF2 Saturn related to the Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- Common symptoms include decreased fuel efficiency, reduced power output, and in some cases, the vehicle may go into a reduced power mode.

2. What are the possible causes of OBDII code P1BF2 Saturn indicating Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- The code may be triggered by issues such as a faulty high voltage battery, damaged battery wiring, or a malfunctioning battery management system.

3. How should I diagnose the OBDII code P1BF2 Saturn for Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- Diagnosis typically involves using a scan tool to check for the specific error code, inspecting the high voltage battery and associated components, and conducting a thorough electrical system check.

4. Can I continue driving my vehicle with the OBDII code P1BF2 Saturn related to Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- It is not recommended to drive the vehicle with this code present as it can lead to further damage to the high voltage system and potentially pose safety risks.

5. How can I repair OBDII code P1BF2 Saturn for Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- Repair options may include replacing the high voltage battery, repairing damaged wiring, resetting the battery management system, or seeking professional assistance from a certified technician.

6. Are there any precautions to take when working with a high voltage system related to OBDII code P1BF2 Saturn?

- Yes, it is crucial to follow all safety procedures outlined in the vehicle's service manual when working with high voltage systems to prevent electric shock or injury.

7. Will resetting the OBDII code P1BF2 Saturn related to Hybrid/Electric Vehicle Battery 90 Circuit High Voltage resolve the issue?

- Resetting the code may temporarily clear the warning, but it is important to address the root cause of the problem to prevent the code from reoccurring.

8. Can extreme weather conditions affect the triggering of OBDII code P1BF2 Saturn for Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- Yes, extreme temperatures can impact the performance and health of the high voltage battery, potentially leading to the triggering of this code.

9. How often should the high voltage battery system be inspected to prevent issues like OBDII code P1BF2 Saturn related to Hybrid/Electric Vehicle Battery 90 Circuit High Voltage?

- It is recommended to have the high voltage system inspected regularly as part of routine maintenance to catch any potential issues early and prevent codes like P1BF2 from appearing.

10. Is OBDII code P1BF2 Saturn indicating Hybrid/Electric Vehicle Battery 90 Circuit High Voltage a common issue in Saturn hybrid/electric vehicles?

- While it may not be extremely common, it is still important to be aware of this code and its potential causes to ensure the proper functioning of the high voltage system in Saturn hybrid/electric vehicles.