AutoCodes – Chevrolet – P1B6D Chevrolet

P1B6D Chevrolet Code - Hybrid/Electric Vehicle Battery 46 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: P1B6D Chevrolet indicates Hybrid/Electric Vehicle Battery 46 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 1,045

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 P1B6D 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 P1B6D Chevrolet - Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage - AutoCodes.com — P1B6D Chevrolet Code - Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B6D Chevrolet?

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

How to Fix the DTC P1B6D 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 P1B6D 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 P1B6D Chevrolet Code

1. What are the common symptoms of OBDII code P1B6D in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms include poor fuel efficiency, reduced power, and the vehicle may fail to start or experience performance issues.

2. What are the possible causes of the Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage code in a Chevrolet?

- Possible causes include a faulty hybrid/electric vehicle battery, poor electrical connections, battery cell degradation, or issues with the battery management system.

3. How can I diagnose the P1B6D code in my Chevrolet Hybrid/Electric Vehicle?

- Diagnosing the code involves using an OBDII scanner to read the code, checking the hybrid/electric vehicle battery voltage levels, inspecting battery connections, and testing the battery cells.

4. Can I continue driving my Chevrolet with the P1B6D code present?

- It is not recommended to continue driving with the code present, as it can lead to further damage to the hybrid/electric vehicle system and potentially leave you stranded.

5. How can I reset the P1B6D code in my Chevrolet Hybrid/Electric Vehicle?

- The code can be reset using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. Is it safe to attempt DIY repairs for the Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage code?

- DIY repairs can be attempted for simple tasks like checking connections, but complex battery repairs or replacements should be done by a qualified technician familiar with hybrid/electric vehicle systems.

7. What are some tips for preventing the P1B6D code from appearing in my Chevrolet Hybrid/Electric Vehicle?

- Regularly inspecting the battery system, maintaining proper charging habits, and addressing any electrical issues promptly can help prevent the code from appearing.

8. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 46 Circuit Low Voltage code in a Chevrolet?

- The cost of repairs can vary depending on the underlying issue, but it is recommended to budget for potential battery replacements or repairs which can be expensive.

9. Can extreme weather conditions affect the likelihood of the P1B6D code appearing in a Chevrolet Hybrid/Electric Vehicle?

- Yes, extreme temperatures can impact battery performance and potentially trigger the code, so it's important to take precautions in harsh weather conditions.

10. Are there any recalls or service bulletins related to the P1B6D code in Chevrolet Hybrid/Electric Vehicles?

- It is recommended to check with a Chevrolet dealership or the manufacturer's website for any recalls or service bulletins related to the P1B6D code to address potential known issues.