AutoCodes – GMC – P0B87 GMC

P0B87 GMC Code - Hybrid/Electric Vehicle Battery 16 Circuit Performance

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: P0B87 GMC indicates Hybrid/Electric Vehicle Battery 16 Circuit Performance.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 937

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0B87 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 P0B87 GMC - Hybrid/Electric Vehicle Battery 16 Circuit Performance - AutoCodes.com — P0B87 GMC Code - Hybrid/Electric Vehicle Battery 16 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0B87 GMC?

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

How to Fix the DTC P0B87 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 P0B87 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.

Need more information about the P0B87 GMC code?

Need more information on how to fix the P0B87 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0B87 GMC code diagnosed by a professional: Find a repair shop in your area

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 P0B87 GMC Code

1. What are the common symptoms of OBDII code P0B87 GMC related to Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- Common symptoms include decreased fuel efficiency, loss of power, and the vehicle may switch to gasoline mode more frequently than usual.

2. What are the possible causes of OBDII code P0B87 GMC for Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- Possible causes can include a faulty battery pack, issues with the battery management system, damaged wiring, or a malfunctioning battery temperature sensor.

3. How can I diagnose the OBDII code P0B87 GMC for Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- Diagnosing this code typically involves using a scan tool to read the code, inspecting the battery connections, performing battery voltage tests, and checking for any visible damage to the battery components.

4. Can I drive my vehicle with OBDII code P0B87 GMC related to Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid or electric system components.

5. How can I repair OBDII code P0B87 GMC for Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- Repairing this code may involve replacing the battery pack, repairing damaged wiring, resetting the battery management system, or replacing the faulty battery temperature sensor.

6. Are there any DIY tips for addressing OBDII code P0B87 GMC in a GMC hybrid or electric vehicle?

- DIY tips may include checking for loose battery connections, inspecting the wiring harness for damage, and ensuring the battery pack is properly cooled and maintained.

7. What are the potential risks of ignoring OBDII code P0B87 GMC for Hybrid/Electric Vehicle Battery 16 Circuit Performance?

- Ignoring this code can lead to reduced performance, decreased fuel efficiency, and potential damage to the hybrid or electric system components.

8. How long does it typically take to repair OBDII code P0B87 GMC in a GMC hybrid or electric vehicle?

- The repair time can vary depending on the exact cause of the code, but it may take several hours to a day to diagnose and repair the issue.

9. Can OBDII code P0B87 GMC for Hybrid/Electric Vehicle Battery 16 Circuit Performance be a recurring problem?

- Yes, if the underlying issue is not properly addressed, the code may reappear, especially if there are ongoing problems with the battery or its components.

10. Is it necessary to visit a dealership or specialized mechanic to address OBDII code P0B87 GMC in a GMC hybrid or electric vehicle?

- While it is recommended to seek assistance from a dealership or a mechanic experienced with hybrid or electric vehicles, some basic diagnostics and repairs can potentially be done by knowledgeable DIY enthusiasts.