AutoCodes – GMC – P0B5E GMC

P0B5E GMC Code - Hybrid/Electric Vehicle Battery 8 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: P0B5E GMC indicates Hybrid/Electric Vehicle Battery 8 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 855

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 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B5E 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 P0B5E GMC - Hybrid/Electric Vehicle Battery 8 Circuit - AutoCodes.com — P0B5E GMC Code - Hybrid/Electric Vehicle Battery 8 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B5E GMC?

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

How to Fix the DTC P0B5E 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 P0B5E 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 P0B5E GMC Code

1. What are the common symptoms of OBDII code P0B5E on a GMC hybrid/electric vehicle?

- Common symptoms include reduced hybrid battery performance, poor fuel efficiency, and potential difficulty starting the vehicle.

2. What can cause the OBDII code P0B5E to trigger in a GMC hybrid/electric vehicle?

- The code P0B5E typically indicates a fault in Hybrid/Electric Vehicle Battery 8 Circuit, which can be caused by issues such as a faulty battery cell, damaged wiring, or a malfunctioning battery management system.

3. How can I diagnose the OBDII code P0B5E on my GMC hybrid/electric vehicle?

- Diagnosing the code P0B5E usually involves using a diagnostic scanner to retrieve the specific fault codes, conducting a visual inspection of the battery and related components, and performing electrical tests to pinpoint the issue.

4. Is it safe to continue driving my GMC hybrid/electric vehicle with the OBDII code P0B5E present?

- It is not recommended to drive the vehicle with the code P0B5E active, as it can lead to further damage to the hybrid/electric system and potentially result in a complete loss of power.

5. Can I repair the OBDII code P0B5E issue in my GMC hybrid/electric vehicle myself?

- Repairing the code P0B5E issue often requires specialized knowledge and tools, so it is advised to seek assistance from a professional mechanic or dealership with experience in hybrid/electric vehicle systems.

6. How much does it typically cost to repair the OBDII code P0B5E on a GMC hybrid/electric vehicle?

- The cost of repairing the code P0B5E can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services, potentially ranging from a few hundred to several thousand dollars.

7. Are there any preventive maintenance tips to avoid triggering the OBDII code P0B5E in my GMC hybrid/electric vehicle?

- Regularly servicing and inspecting the hybrid/electric vehicle system, following manufacturer recommendations for battery maintenance, and addressing any warning signs promptly can help prevent issues that may lead to the code P0B5E.

8. Can a faulty sensor or connector cause the OBDII code P0B5E to appear in a GMC hybrid/electric vehicle?

- Yes, a faulty sensor or connector related to the Hybrid/Electric Vehicle Battery 8 Circuit can trigger the code P0B5E, so it is important to check these components during the diagnostic process.

9. Will resetting the OBDII code P0B5E on my GMC hybrid/electric vehicle make the issue go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code P0B5E is not addressed, the problem is likely to reoccur.

10. How long does it typically take to repair the OBDII code P0B5E in a GMC hybrid/electric vehicle?

- The repair time for the code P0B5E can vary based on the complexity of the issue and the availability of parts, but it may take several hours to a few days to resolve the problem fully.