AutoCodes – GMC – P0B95 GMC

P0B95 GMC Code - Hybrid/Electric Vehicle Battery 19 Circuit

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: P0B95 GMC indicates Hybrid/Electric Vehicle Battery 19 Circuit.
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 785

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 P0B95 GMC 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 P0B95 GMC - Hybrid/Electric Vehicle Battery 19 Circuit - AutoCodes.com — P0B95 GMC Code - Hybrid/Electric Vehicle Battery 19 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B95 GMC?

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

How to Fix the DTC P0B95 GMC?

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 P0B95 GMC 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 P0B95 GMC Code

1. What does the OBDII code P0B95 on a GMC Hybrid/Electric Vehicle indicate?

The code P0B95 specifically relates to the Hybrid/Electric Vehicle Battery 19 Circuit, signaling a problem with the battery system.

2. What are some common symptoms of the P0B95 code in a GMC Hybrid/Electric Vehicle?

Common symptoms include reduced electric vehicle range, poor battery performance, and potential issues with hybrid system functionality.

3. What are the possible causes of the P0B95 code in a GMC Hybrid/Electric Vehicle?

Potential causes of the P0B95 code can range from a faulty battery pack, damaged battery wiring, issues with battery cooling systems, or problems with the battery control module.

4. How can I diagnose the P0B95 code in my GMC Hybrid/Electric Vehicle?

Diagnosing the P0B95 code typically involves using a diagnostic scanner to retrieve the specific fault codes, conducting visual inspections of the battery components, and testing the battery system for proper functionality.

5. Can I continue driving my GMC Hybrid/Electric Vehicle with the P0B95 code present?

It is not recommended to continue driving the vehicle with the P0B95 code active, as it can lead to further damage to the hybrid/electric system and potentially compromise safety.

6. Are there any quick repair tips for addressing the P0B95 code in a GMC Hybrid/Electric Vehicle?

Quick repair tips may include checking and securing battery connections, inspecting for any visible damage to wiring, and ensuring proper cooling system operation for the battery.

7. Do I need a professional mechanic to fix the P0B95 code in my GMC Hybrid/Electric Vehicle?

Given the complexity of hybrid/electric vehicle systems, it is advisable to seek assistance from a qualified mechanic or dealership experienced in hybrid vehicle repairs to address the P0B95 code effectively.

8. How much does it typically cost to repair the P0B95 code in a GMC Hybrid/Electric Vehicle?

Repair costs for the P0B95 code can vary depending on the root cause of the issue, but it is recommended to budget for potential battery system repairs or component replacements, which can be significant.

9. Can the P0B95 code be a recurring issue in GMC Hybrid/Electric Vehicles?

Yes, the P0B95 code can potentially recur if the underlying problem is not completely resolved, highlighting the importance of thorough diagnosis and repair to prevent future issues.

10. Is there any way to prevent the P0B95 code from appearing in my GMC Hybrid/Electric Vehicle?

Regular maintenance, monitoring battery system health, and addressing any warning signs promptly can help prevent the occurrence of the P0B95 code in GMC Hybrid/Electric Vehicles.