AutoCodes – Buick – P1B1F Buick

P1B1F Buick Code - Hybrid/Electric Vehicle Battery 30 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: P1B1F Buick indicates Hybrid/Electric Vehicle Battery 30 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 817

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B1F Buick 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 P1B1F Buick - Hybrid/Electric Vehicle Battery 30 Circuit Performance - AutoCodes.com — P1B1F Buick Code - Hybrid/Electric Vehicle Battery 30 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B1F Buick?

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

How to Fix the DTC P1B1F Buick?

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 P1B1F Buick 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 P1B1F Buick Code

1. What are the common symptoms of OBDII code P1B1F in a Buick Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and possible illumination of the check engine light.

2. What are the possible causes of OBDII code P1B1F in a Buick Hybrid/Electric Vehicle?

- The code P1B1F typically indicates issues with the hybrid/electric vehicle battery 30 circuit, which can be caused by wiring faults, faulty battery components, or software malfunctions.

3. How can I diagnose the OBDII code P1B1F in my Buick Hybrid/Electric Vehicle?

- Diagnosing code P1B1F requires specialized diagnostic equipment to scan for the specific fault in the hybrid/electric vehicle battery 30 circuit. It is recommended to consult a professional mechanic or dealership for accurate diagnosis.

4. Is it safe to continue driving my Buick with the OBDII code P1B1F present?

- While the vehicle may still be operable with the code present, it is not recommended to ignore the issue. Driving with unresolved battery circuit problems can lead to further damage and potentially unsafe driving conditions.

5. Can I repair the OBDII code P1B1F issue in my Buick Hybrid/Electric Vehicle myself?

- Repairing code P1B1F in a Buick Hybrid/Electric Vehicle typically requires specialized knowledge and tools. It is recommended to seek assistance from a qualified mechanic or dealership to properly diagnose and address the issue.

6. How much does it cost to fix the OBDII code P1B1F in a Buick Hybrid/Electric Vehicle?

- The cost of repairing code P1B1F can vary depending on the underlying cause of the issue. It is advisable to obtain a diagnostic assessment from a professional technician to determine the exact repair cost.

7. Can a software update fix the OBDII code P1B1F in my Buick Hybrid/Electric Vehicle?

- In some cases, a software update provided by the vehicle manufacturer may address the code P1B1F issue related to software malfunctions. Consult a dealership or authorized service center for more information.

8. Will resetting the OBDII code P1B1F in my Buick Hybrid/Electric Vehicle make it go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing code P1B1F is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause.

9. How can I prevent the OBDII code P1B1F from occurring in my Buick Hybrid/Electric Vehicle?

- Regular maintenance, including checking the hybrid/electric vehicle battery system, keeping the vehicle software up to date, and addressing any electrical issues promptly, can help prevent the occurrence of code P1B1F.

10. Does the OBDII code P1B1F in a Buick Hybrid/Electric Vehicle affect the vehicle's warranty?

- If your vehicle is still under warranty, it is recommended to have the issue diagnosed and repaired by an authorized dealership to avoid potential warranty complications.