AutoCodes – Chevrolet – P1B5E Chevrolet

P1B5E Chevrolet Code - Hybrid/Electric Vehicle Battery 41 Circuit Low 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: P1B5E Chevrolet indicates Hybrid/Electric Vehicle Battery 41 Circuit Low 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 808

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 P1B5E 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 P1B5E Chevrolet - Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage - AutoCodes.com — P1B5E Chevrolet Code - Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B5E Chevrolet?

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

How to Fix the DTC P1B5E 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 P1B5E 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 P1B5E Chevrolet Code

1. What are the common symptoms of OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- Common symptoms include decreased electric vehicle range, difficulty starting the vehicle, and potential warning lights on the dashboard.

2. What can cause the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- This code is often triggered by issues such as a low voltage in the hybrid/electric vehicle battery, a faulty battery cell, or problems with the battery management system.

3. How can I diagnose the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- A diagnostic scan tool can help pinpoint the exact cause of the code by providing specific data related to the hybrid/electric vehicle battery's voltage levels and health.

4. What are some repair tips for addressing the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- Repair tips may include checking the battery connections, testing the individual battery cells, inspecting the battery management system components, and ensuring proper charging system functionality.

5. Can I continue driving my vehicle with the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- It is recommended to address the issue promptly to prevent further damage to the hybrid/electric vehicle battery and ensure the vehicle operates safely and efficiently.

6. How serious is the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- This code indicates a potential issue with the hybrid/electric vehicle battery, which is a critical component of the vehicle's power system. Ignoring the code can lead to performance issues and potential safety concerns.

7. Can I reset the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage on my own?

- While you can clear the code with a diagnostic scan tool, it is crucial to address the underlying problem causing the code to prevent future occurrences and ensure the vehicle's proper functioning.

8. How much does it typically cost to repair the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- The repair cost can vary depending on the specific cause of the code, the extent of the issue, and whether parts need to be replaced. It is advisable to consult a professional for an accurate assessment.

9. Are there any preventive measures I can take to avoid the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- Regular maintenance of the hybrid/electric vehicle battery, such as monitoring voltage levels, ensuring proper charging habits, and timely inspections, can help prevent issues leading to this code.

10. How long does it take to repair the OBDII code P1B5E (Chevrolet) Hybrid/Electric Vehicle Battery 41 Circuit Low Voltage?

- The repair time can vary based on the complexity of the issue, availability of parts, and the expertise of the technician. Some repairs may be completed within a few hours, while others might take longer.