AutoCodes – Chevrolet – P1BD0 Chevrolet

P1BD0 Chevrolet Code - Hybrid/Electric Vehicle Battery 79 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: P1BD0 Chevrolet indicates Hybrid/Electric Vehicle Battery 79 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 1,019

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 P1BD0 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 P1BD0 Chevrolet - Hybrid/Electric Vehicle Battery 79 Circuit Low Voltage - AutoCodes.com — P1BD0 Chevrolet Code - Hybrid/Electric Vehicle Battery 79 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BD0 Chevrolet?

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

How to Fix the DTC P1BD0 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 P1BD0 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 P1BD0 Chevrolet Code

What does the OBDII code P1BD0 mean for a Chevrolet vehicle?

The OBDII code P1BD0 indicates a low voltage condition in the Hybrid/Electric Vehicle Battery 79 circuit, which can affect the vehicle's hybrid system performance.

What are common symptoms of the P1BD0 code?

Common symptoms include warning lights on the dashboard, reduced power or performance, difficulty starting the vehicle, and erratic behavior of the hybrid system.

What can cause the P1BD0 code to trigger?

The P1BD0 code can be triggered by a faulty battery, poor electrical connections, damaged wiring, a malfunctioning battery management system, or issues with the vehicle's charging system.

How can I diagnose the P1BD0 code?

To diagnose the P1BD0 code, use an OBDII scanner to check for additional codes, inspect the battery and wiring for damage or corrosion, and test the battery voltage and connections.

Are there any common repairs for the P1BD0 code?

Common repairs include tightening or replacing corroded connectors, repairing damaged wiring, replacing the hybrid battery, or reprogramming or replacing the battery management system.

Can I drive my Chevrolet vehicle with the P1BD0 code?

While it may be possible to drive the vehicle, it is not recommended as the low voltage condition can lead to further damage to the hybrid system or battery if not addressed promptly.

Is it safe to inspect the hybrid battery myself if I see the P1BD0 code?

Inspecting the hybrid battery can be dangerous due to high voltage components. Itâ€™s best to have a qualified technician perform the inspection and repairs.

How much does it typically cost to fix the P1BD0 code?

Repair costs can vary widely depending on the issue, ranging from a few hundred dollars for wiring repairs to several thousand for a battery replacement.

Will clearing the P1BD0 code fix the problem?

Clearing the code may temporarily turn off the warning lights, but it does not address the underlying issue. The code is likely to return if the problem is not resolved.