AutoCodes – Chevrolet – P1B24 Chevrolet

P1B24 Chevrolet Code - Hybrid/Electric Vehicle Battery 31 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: P1B24 Chevrolet indicates Hybrid/Electric Vehicle Battery 31 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 816

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 P1B24 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 P1B24 Chevrolet - Hybrid/Electric Vehicle Battery 31 Circuit High Voltage - AutoCodes.com — P1B24 Chevrolet Code - Hybrid/Electric Vehicle Battery 31 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B24 Chevrolet?

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

How to Fix the DTC P1B24 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 P1B24 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 P1B24 Chevrolet Code

1. What are the common symptoms of OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include the Check Engine light illuminating, reduced fuel efficiency, and potential loss of power.

2. What can cause the OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- The code P1B24 typically indicates a high voltage condition in the Hybrid/Electric Vehicle Battery 31 circuit, which can be caused by issues with the battery module or related components.

3. How serious is the OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- This code should be addressed promptly, as it can lead to performance issues and potential damage to the high-voltage system in the vehicle.

4. Can I still drive my Chevrolet hybrid/electric vehicle with the OBDII code P1B24 present?

- It is not recommended to drive the vehicle with this code present, as it can impact the performance and safety of the vehicle.

5. How can I diagnose and repair the OBDII code P1B24 in my Chevrolet hybrid/electric vehicle?

- Diagnosing and repairing this code typically requires specialized equipment and knowledge of hybrid/electric vehicle systems. It is recommended to consult a professional technician or dealership for proper diagnosis and repair.

6. Is it safe to attempt DIY repairs for the OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- Due to the high-voltage nature of the system involved, DIY repairs are not recommended. It is safer and more effective to seek professional assistance for this issue.

7. What are some preventive maintenance tips to avoid the OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- Regularly scheduled maintenance and inspections of the high-voltage system, as recommended by the manufacturer, can help prevent issues that may trigger this code.

8. How much does it typically cost to repair the OBDII code P1B24 in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the exact cause of the issue and the extent of the repairs needed. It is advisable to obtain a diagnosis and repair estimate from a qualified technician.

9. Can the OBDII code P1B24 be cleared/reset without fixing the underlying issue in a Chevrolet hybrid/electric vehicle?

- Clearing the code without addressing the underlying issue may temporarily turn off the Check Engine light, but the problem will likely persist and could lead to more severe issues in the future.

10. Are there any recalls or technical service bulletins related to the OBDII code P1B24 in Chevrolet hybrid/electric vehicles?

- It is recommended to check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code.