AutoCodes – Chevrolet – P0B92 Chevrolet

P0B92 Chevrolet Code - Hybrid/Electric Vehicle Battery 18 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: P0B92 Chevrolet indicates Hybrid/Electric Vehicle Battery 18 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 861

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 P0B92 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 P0B92 Chevrolet - Hybrid/Electric Vehicle Battery 18 Circuit Low Voltage - AutoCodes.com — P0B92 Chevrolet Code - Hybrid/Electric Vehicle Battery 18 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B92 Chevrolet?

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

How to Fix the DTC P0B92 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 P0B92 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 P0B92 Chevrolet Code

1. What does the OBDII code P0B92 mean on a Chevrolet?

P0B92 indicates a low voltage issue in the Hybrid/Electric Vehicle Battery 18 circuit, which is part of the battery pack monitoring system.

2. What are the symptoms of code P0B92 in a Chevrolet?

Common symptoms include reduced hybrid system performance, warning lights on the dashboard, poor fuel efficiency, or the vehicle entering limp mode.

3. What causes the P0B92 code to appear?

It can be caused by a faulty battery cell, corroded or damaged wiring, a malfunctioning battery control module, or issues with the voltage sensor in the affected circuit.

4. Can I drive my Chevrolet with a P0B92 code?

Driving with this code is not recommended, as it can lead to further damage to the hybrid system and reduced vehicle performance.

5. How do you diagnose the P0B92 code?

Diagnosis involves inspecting the battery circuit wiring and connections, testing the voltage of the affected battery module, and checking the battery control module for faults.

6. How is the P0B92 code fixed?

Repairs may include replacing the faulty battery cell, repairing or replacing damaged wiring, cleaning corroded connections, or replacing the battery control module if necessary.

7. What tools are needed to troubleshoot the P0B92 code?

You'll need an OBDII scanner with hybrid system capabilities, a multimeter for voltage testing, and appropriate tools to inspect and repair the battery components.

8. How much does it cost to fix a P0B92 code on a Chevrolet?

Repair costs vary depending on the issue, ranging from $100 for minor wiring repairs to over $1,000 if the battery module or control unit needs replacement.

9. Can a software issue cause the P0B92 code?

Yes, outdated or corrupted software in the battery control module can sometimes trigger this code and may require a software update or reprogramming.

10. How can I prevent the P0B92 code from recurring?

Regular maintenance of the hybrid battery system, including checking for corrosion, ensuring tight connections, and addressing early warning signs, can help prevent this code.