AutoCodes – Buick – P0B83 Buick

P0B83 Buick Code - Hybrid/Electric Vehicle Battery 15 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: P0B83 Buick indicates Hybrid/Electric Vehicle Battery 15 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 938

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 P0B83 Buick 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 P0B83 Buick - Hybrid/Electric Vehicle Battery 15 Circuit Low Voltage - AutoCodes.com — P0B83 Buick Code - Hybrid/Electric Vehicle Battery 15 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B83 Buick?

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

How to Fix the DTC P0B83 Buick?

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 P0B83 Buick 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 P0B83 Buick Code

1. What does the OBDII code P0B83 mean for a Buick?

The P0B83 code indicates a "Hybrid/Electric Vehicle Battery 15 Circuit Low Voltage," meaning the voltage in battery block 15 is lower than expected.

2. What are common symptoms of the P0B83 code in a Buick?

Symptoms may include reduced hybrid system performance, warning lights on the dashboard, decreased fuel efficiency, or the vehicle entering limp mode.

3. What causes the P0B83 code to trigger in a Buick?

Potential causes include a faulty battery module, damaged wiring or connections in the battery circuit, a defective battery management system, or issues with the hybrid control module.

4. Can I drive my Buick with the P0B83 code active?

It's not recommended to drive with this code active, as it may result in reduced performance and could further damage the hybrid battery system.

5. How is the P0B83 code diagnosed in a Buick?

A technician will use a scan tool to check the code, inspect the hybrid battery and related wiring for damage, and test the voltage of individual battery cells to identify the issue.

6. What repairs are needed to fix the P0B83 code?

Repairs may involve replacing a failed battery module, repairing damaged wiring, or reprogramming or replacing the hybrid battery management system.

7. How much does it cost to fix the P0B83 code on a Buick?

Repair costs vary, but replacing a hybrid battery module can range from $500 to $1,500 or more, depending on labor and parts.

8. Can a weak 12V battery cause the P0B83 code on a Buick?

While unlikely, a weak 12V battery can sometimes cause hybrid system issues. Itâ€™s worth checking the 12V battery as part of the diagnostic process.

9. Is the P0B83 code specific to Buick vehicles?

No, P0B83 is a generic OBD-II code found in many hybrid and electric vehicles, but the diagnostic and repair steps may vary by manufacturer.

10. How can I prevent the P0B83 code from reoccurring?

Regular maintenance of the hybrid battery system, inspecting wiring connections, and addressing hybrid system warnings promptly can help prevent this code.