AutoCodes – Chevrolet – P1BBF Chevrolet

P1BBF Chevrolet Code - Hybrid/Electric Vehicle Battery 73 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: P1BBF Chevrolet indicates Hybrid/Electric Vehicle Battery 73 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 840

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BBF Chevrolet 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 P1BBF Chevrolet - Hybrid/Electric Vehicle Battery 73 Circuit High Voltage - AutoCodes.com — P1BBF Chevrolet Code - Hybrid/Electric Vehicle Battery 73 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BBF Chevrolet?

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

How to Fix the DTC P1BBF Chevrolet?

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 P1BBF Chevrolet 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 P1BBF Chevrolet Code

1. What are the common symptoms of OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, illuminated check engine light, and potential drivability issues.

2. What causes the OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- The code P1BBF is typically triggered by a high voltage condition detected in the hybrid/electric vehicle battery circuit 73.

3. How serious is the OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- The code P1BBF should be addressed promptly as it can lead to potential damage to the hybrid/electric vehicle battery system if left unresolved.

4. Can I still drive my Chevrolet Hybrid/Electric Vehicle with the OBDII code P1BBF present?

- It is not recommended to continue driving the vehicle with the code P1BBF present to prevent further damage to the hybrid/electric vehicle battery system.

5. How can I diagnose and repair the OBDII code P1BBF in my Chevrolet Hybrid/Electric Vehicle?

- Diagnosis and repair of the code P1BBF typically require advanced diagnostic tools and expertise to pinpoint the exact cause, which may involve checking the battery circuit and related components.

6. Is it safe to attempt DIY repairs for the OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek professional assistance for diagnosing and repairing the code P1BBF to ensure safety and accuracy.

7. How much does it cost to fix the OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- The cost of fixing the code P1BBF can vary depending on the underlying issue, with potential expenses for parts and labor associated with diagnosing and repairing the high voltage circuit problem.

8. Can a faulty hybrid/electric vehicle battery cause the OBDII code P1BBF in a Chevrolet?

- Yes, a malfunctioning hybrid/electric vehicle battery or related components can contribute to triggering the code P1BBF due to high voltage issues in circuit 73.

9. Are there any recalls or technical service bulletins related to the OBDII code P1BBF in Chevrolet Hybrid/Electric Vehicles?

- It is advisable to check with Chevrolet dealerships or the manufacturer for any relevant recalls or technical service bulletins addressing the code P1BBF specifically in their hybrid/electric vehicles.

10. What precautions should I take when dealing with the OBDII code P1BBF in a Chevrolet Hybrid/Electric Vehicle?

- When encountering the code P1BBF, it is important to follow safety guidelines provided by Chevrolet and to avoid tampering with high voltage components without proper training or knowledge.