AutoCodes – Generic – P1B1F

P1B1F 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 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 1,615

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 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 - Hybrid/Electric Vehicle Battery 30 Circuit Performance - AutoCodes.com — P1B1F Code - Hybrid/Electric Vehicle Battery 30 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B1F?

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

How to Fix the DTC P1B1F?

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 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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Need Help with the Code?

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Information for Specific Makes

P1B1F Buick — Hybrid/Electric Vehicle Battery 30 Circuit Performance
P1B1F Cadillac — Hybrid/Electric Vehicle Battery 30 Circuit Performance
P1B1F Chevrolet — Hybrid/Electric Vehicle Battery 30 Circuit Performance
P1B1F GMC — Hybrid/Electric Vehicle Battery 30 Circuit Performance
P1B1F Saturn — Hybrid/Electric Vehicle Battery 30 Circuit Performance

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 Code

1. What are the common symptoms of OBDII code P1B1F (Hybrid/Electric Vehicle Battery 30 Circuit Performance)?

- Common symptoms may include reduced hybrid system performance, decreased fuel efficiency, and potential issues with battery charging.

2. What are some possible causes of OBDII code P1B1F?

- Possible causes of this code may include faulty battery pack components, damaged wiring in the battery circuit, or issues with the battery management system.

3. How can I diagnose OBDII code P1B1F?

- Diagnosis typically involves using a diagnostic scanner to read the code, inspecting the battery system components for any visible damage, and conducting further testing as needed.

4. Can I still drive my hybrid or electric vehicle with OBDII code P1B1F present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further damage to the battery system and potentially compromise vehicle safety.

5. How can I repair OBDII code P1B1F on my hybrid or electric vehicle?

- Repairing this code may involve replacing damaged battery components, repairing any wiring issues, or recalibrating the battery management system.

6. Will resetting the OBDII code P1B1F make it go away permanently?

- Resetting the code may temporarily remove the warning light, but if the underlying issue is not fixed, the code is likely to return.

7. Can a DIY enthusiast fix OBDII code P1B1F at home?

- While some basic troubleshooting steps can be performed at home, diagnosing and repairing this code may require specialized tools and expertise best handled by a professional.

8. What is the typical cost to repair OBDII code P1B1F in a hybrid or electric vehicle?

- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. How often does OBDII code P1B1F occur in hybrid and electric vehicles?

- This code is relatively rare but can occur in hybrid and electric vehicles with battery system issues or malfunctions.

10. Is it safe to continue driving if the OBDII code P1B1F is intermittent?

- It is not recommended to continue driving if the code is intermittent, as it indicates an ongoing issue that needs to be addressed to prevent potential safety hazards.