AutoCodes – Chevrolet – P1BD6 Chevrolet

P1BD6 Chevrolet Code - Hybrid/Electric Vehicle Battery 81 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: P1BD6 Chevrolet indicates Hybrid/Electric Vehicle Battery 81 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 875

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BD6 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 P1BD6 Chevrolet - Hybrid/Electric Vehicle Battery 81 Circuit Low Voltage - AutoCodes.com — P1BD6 Chevrolet Code - Hybrid/Electric Vehicle Battery 81 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BD6 Chevrolet?

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

How to Fix the DTC P1BD6 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 P1BD6 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 P1BD6 Chevrolet Code

1. What are common symptoms of OBDII code P1BD6 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include poor battery performance, reduced electric range, and potential issues with starting the vehicle.

2. What does the OBDII code P1BD6 Chevrolet indicate about the hybrid/electric vehicle battery 81 circuit?

- The code indicates a low voltage condition in the hybrid/electric vehicle battery 81 circuit.

3. What are possible causes of the OBDII code P1BD6 in a Chevrolet hybrid/electric vehicle?

- Possible causes include a faulty battery cell, damaged wiring in the battery circuit, issues with the battery management system, or a malfunctioning battery pack.

4. How can I diagnose the OBDII code P1BD6 in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a diagnostic scanner to read the code, checking the battery voltage levels, inspecting the battery connections, and testing the battery cells.

5. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P1BD6 present?

- It is not recommended to continue driving the vehicle with this code present, as it may lead to further damage to the battery system and affect the vehicle's performance.

6. How can I reset the OBDII code P1BD6 in my Chevrolet hybrid/electric vehicle?

- The code can be reset using a diagnostic scanner that has the capability to clear fault codes. However, it is important to address the underlying issue causing the code before resetting it.

7. Is it safe to attempt repairs for the OBDII code P1BD6 in a Chevrolet hybrid/electric vehicle myself?

- Unless you have experience working with high-voltage systems and the necessary tools, it is recommended to have repairs for this code performed by a qualified technician familiar with hybrid/electric vehicle systems.

8. What are some repair tips for addressing the OBDII code P1BD6 in a Chevrolet hybrid/electric vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty battery cells, recalibrating the battery management system, or replacing the battery pack if necessary.

9. How much can I expect to pay for repairs related to the OBDII code P1BD6 in a Chevrolet hybrid/electric vehicle?

- The cost of repairs can vary depending on the extent of the issue, the parts needed for replacement, and the labor rates of the service provider. It is recommended to obtain a diagnosis and cost estimate from a reputable technician.

10. Are there any preventative measures I can take to avoid the OBDII code P1BD6 in my Chevrolet hybrid/electric vehicle?

- Regular maintenance of the vehicle's battery system, including monitoring voltage levels and addressing any issues promptly, can help prevent the occurrence of the OBDII code P1BD6.