AutoCodes – Chevrolet – P1B2B Chevrolet

P1B2B Chevrolet Code - Hybrid/Electric Vehicle Battery 30 Circuit

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: P1B2B Chevrolet indicates Hybrid/Electric Vehicle Battery 30 Circuit.
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 1,017

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 P1B2B 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 P1B2B Chevrolet - Hybrid/Electric Vehicle Battery 30 Circuit - AutoCodes.com — P1B2B Chevrolet Code - Hybrid/Electric Vehicle Battery 30 Circuit

What does this mean?

What are the Possible Causes of the DTC P1B2B Chevrolet?

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

How to Fix the DTC P1B2B 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 P1B2B 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 P1B2B Chevrolet Code

1. What are common symptoms of OBDII code P1B2B Chevrolet related to the Hybrid/Electric Vehicle Battery 30 Circuit?

- Common symptoms include reduced electric vehicle range, poor battery performance, and potential issues with hybrid system operation.

2. What are the possible causes of OBDII code P1B2B Chevrolet indicating an issue with the Hybrid/Electric Vehicle Battery 30 Circuit?

- Potential causes may include a faulty battery pack, damaged battery wiring, issues with battery cell balancing, or problems with the battery management system.

3. How can I diagnose the source of OBDII code P1B2B Chevrolet in relation to the Hybrid/Electric Vehicle Battery 30 Circuit?

- Diagnosis typically involves using specialized diagnostic equipment to test the battery pack, inspecting wiring for damage, checking battery cell voltages, and analyzing data from the battery management system.

4. Can I drive my vehicle with OBDII code P1B2B Chevrolet triggered for the Hybrid/Electric Vehicle Battery 30 Circuit?

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

5. What are some repair tips for addressing OBDII code P1B2B Chevrolet concerning the Hybrid/Electric Vehicle Battery 30 Circuit?

- Repair tips may include inspecting and repairing damaged wiring, replacing faulty battery cells or modules, recalibrating the battery management system, and ensuring proper battery cooling.

6. Is it safe to attempt DIY repairs for OBDII code P1B2B Chevrolet related to the Hybrid/Electric Vehicle Battery 30 Circuit?

- Due to the complexity of hybrid and electric vehicle systems, it is recommended to seek professional assistance from qualified technicians or specialists for repairs related to the battery circuit.

7. How much does it typically cost to repair OBDII code P1B2B Chevrolet associated with the Hybrid/Electric Vehicle Battery 30 Circuit?

- Repair costs can vary depending on the specific issue, but repairs related to the hybrid/electric vehicle battery circuit can range from a few hundred to several thousand dollars, including parts and labor.

8. Are there any preventive maintenance measures to avoid triggering OBDII code P1B2B Chevrolet for the Hybrid/Electric Vehicle Battery 30 Circuit?

- Regularly inspecting and maintaining the hybrid/electric vehicle battery system, following manufacturer recommendations for battery care, and avoiding extreme temperature conditions can help prevent issues leading to this code.

9. Can OBDII code P1B2B Chevrolet be intermittent, or is it usually a persistent issue with the Hybrid/Electric Vehicle Battery 30 Circuit?

- The code can be intermittent in some cases, especially if the issue is related to a loose connection or temporary fault. However, persistent occurrences of the code indicate a more serious problem that requires attention.

10. How soon should I address OBDII code P1B2B Chevrolet for the Hybrid/Electric Vehicle Battery 30 Circuit to prevent further damage?

- It is advisable to address this code promptly to prevent further damage to the hybrid/electric vehicle battery system, ensure optimal performance, and avoid potential safety risks associated with the battery circuit.