AutoCodes – Buick – P1B92 Buick

P1B92 Buick Code - Hybrid/Electric Vehicle Battery 58 Circuit High 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: P1B92 Buick indicates Hybrid/Electric Vehicle Battery 58 Circuit High 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 858

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 P1B92 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 P1B92 Buick - Hybrid/Electric Vehicle Battery 58 Circuit High Voltage - AutoCodes.com — P1B92 Buick Code - Hybrid/Electric Vehicle Battery 58 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B92 Buick?

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

How to Fix the DTC P1B92 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 P1B92 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 P1B92 Buick Code

1. What are the common symptoms of OBDII code P1B92 in a Buick Hybrid/Electric Vehicle?

- Common symptoms may include the Check Engine light illuminating, reduced hybrid system performance, and potential issues with battery charging.

2. What can cause the OBDII code P1B92 in a Buick Hybrid/Electric Vehicle?

- The code P1B92 typically indicates a high voltage issue within the Hybrid/Electric Vehicle Battery 58 circuit, which can be caused by wiring faults, battery module defects, or issues with the battery management system.

3. How can I diagnose the OBDII code P1B92 in my Buick Hybrid/Electric Vehicle?

- Diagnosing the code P1B92 usually involves using a professional OBDII scanner to read the fault codes, inspecting the high voltage battery components, and performing electrical tests to pinpoint the exact cause of the issue.

4. Are there any safety precautions to take when dealing with the Hybrid/Electric Vehicle Battery 58 circuit high voltage issue?

- Yes, it is crucial to follow proper safety procedures when working on high voltage systems. Make sure to disable the high voltage system, wear appropriate personal protective equipment, and refer to the vehicle's service manual for specific safety guidelines.

5. Can I repair the OBDII code P1B92 in my Buick Hybrid/Electric Vehicle on my own?

- Repairing the code P1B92 may require advanced knowledge and specialized equipment due to the high voltage nature of the system. It is recommended to seek assistance from a qualified technician or dealership for proper diagnosis and repair.

6. What are some general tips for maintaining the Hybrid/Electric Vehicle Battery to prevent code P1B92 from recurring?

- Regularly inspect the battery and its components for any signs of wear or damage, follow the manufacturer's recommended maintenance schedule, and avoid exposing the battery to extreme temperatures or conditions that can impact its performance.

7. Can a faulty Hybrid/Electric Vehicle Battery 58 circuit high voltage issue affect the overall drivability of the Buick Hybrid/Electric Vehicle?

- Yes, a high voltage issue within the Hybrid/Electric Vehicle Battery can impact the vehicle's drivability, potentially leading to reduced performance, loss of power, or even complete system failure if left unresolved.

8. How much does it typically cost to repair the OBDII code P1B92 in a Buick Hybrid/Electric Vehicle?

- The cost of repairing the code P1B92 can vary depending on the exact cause of the issue and the extent of repairs needed. It is advisable to obtain a professional diagnosis to determine the repair costs accurately.

9. Are there any recalls or technical service bulletins related to the OBDII code P1B92 in Buick Hybrid/Electric Vehicles?

- It is recommended to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins related to the code P1B92 to see if there are any known issues or remedies provided by the manufacturer.

10. How long can I safely drive my Buick Hybrid/Electric Vehicle with the OBDII code P1B92 before getting it repaired?

- It is not advisable to drive the vehicle with the code P1B92 for an extended period as it can lead to further damage to the Hybrid/Electric Vehicle Battery system. It is recommended to address the issue promptly to prevent potential safety hazards and costly repairs.