AutoCodes – Chevrolet – P1B1E Chevrolet

P1B1E Chevrolet Code - Hybrid/Electric Vehicle Battery 29 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: P1B1E Chevrolet indicates Hybrid/Electric Vehicle Battery 29 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 903

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 P1B1E 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 P1B1E Chevrolet - Hybrid/Electric Vehicle Battery 29 Circuit High Voltage - AutoCodes.com — P1B1E Chevrolet Code - Hybrid/Electric Vehicle Battery 29 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B1E Chevrolet?

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

How to Fix the DTC P1B1E 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 P1B1E 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 P1B1E Chevrolet Code

1. What are the common symptoms of OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

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

2. What can cause the OBDII code P1B1E to trigger in a Chevrolet hybrid/electric vehicle?

- This code is usually triggered by a high voltage reading in the Hybrid/Electric Vehicle Battery 29 circuit, indicating a potential issue with the battery or related components.

3. How serious is the OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

- This code should be addressed promptly to prevent further damage to the vehicle's battery system and ensure safe operation of the vehicle.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P1B1E present?

- It is not recommended to continue driving the vehicle with this code present, as it could lead to further damage to the battery system or other components.

5. What are some DIY repair tips for fixing the OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

- DIY repair is not recommended for this code, as it involves the high-voltage battery system, which should be handled by trained professionals for safety reasons.

6. How much does it typically cost to repair the OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the extent of the issue, but fixing problems related to the Hybrid/Electric Vehicle Battery 29 circuit can be moderately expensive due to the complexity of the system.

7. How long does it take to repair the OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

- Repair times can vary based on the specific issue, but it may take a few hours to a full day to diagnose and fix problems related to this code.

8. Can a regular mechanic repair the OBDII code P1B1E in a Chevrolet hybrid/electric vehicle?

- It is recommended to take the vehicle to a certified hybrid/electric vehicle technician or dealership with experience in dealing with high-voltage systems for proper diagnosis and repair.

9. Are there any recalls or service bulletins related to the OBDII code P1B1E in Chevrolet hybrid/electric vehicles?

- It is advisable to check with Chevrolet or the National Highway Traffic Safety Administration (NHTSA) for any relevant recalls or service bulletins related to this particular OBDII code.

10. How can I prevent the OBDII code P1B1E from occurring in my Chevrolet hybrid/electric vehicle?

- Regular maintenance and inspections of the high-voltage battery system, as well as following the manufacturer's guidelines for charging and usage, can help prevent issues that may trigger this code.