AutoCodes – Saturn – P0B87 Saturn

P0B87 Saturn 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 Saturn 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.

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Code Popularity 1,023

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

What does this mean?

What are the Possible Causes of the DTC P0B87 Saturn?

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

How to Fix the DTC P0B87 Saturn?

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 Saturn 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 P0B87 Saturn Code

1. What does the OBDII code P0B87 Saturn Hybrid/Electric Vehicle Battery 16 Circuit Performance indicate?

The code P0B87 indicates an issue with the performance of the Hybrid/Electric Vehicle Battery 16 Circuit in a Saturn vehicle.

2. What are the common symptoms of the P0B87 OBDII code in a Saturn hybrid/electric vehicle?

Common symptoms include decreased fuel efficiency, reduced power output, and the illumination of the check engine light on the dashboard.

3. What are the possible causes of the P0B87 code in a Saturn hybrid/electric vehicle?

Possible causes include a faulty battery pack, damaged wiring or connectors, software issues, or problems with the battery management system.

4. How can I diagnose the P0B87 code in my Saturn hybrid/electric vehicle?

Diagnosis typically involves using a diagnostic scan tool to read the code and checking the battery pack, wiring, and connectors for any visible damage or issues.

5. Can I still drive my Saturn vehicle with the P0B87 code present?

It is not recommended to drive the vehicle with the P0B87 code present, as it can lead to further damage to the hybrid/electric system. Immediate attention and repair are advised.

6. How can I repair the P0B87 code in my Saturn hybrid/electric vehicle?

Repair options may include replacing the battery pack, repairing damaged wiring or connectors, updating software, or recalibrating the battery management system.

7. Is it safe to attempt repairs for the P0B87 code on my own?

Due to the complexity of hybrid/electric systems, it is recommended to seek professional help from a certified mechanic or dealership for proper diagnosis and repair of the P0B87 code.

8. How much does it typically cost to repair the P0B87 code in a Saturn hybrid/electric vehicle?

The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred to a few thousand dollars, including parts and labor.

9. Can regular maintenance help prevent the P0B87 code from appearing in my Saturn hybrid/electric vehicle?

Regular maintenance, such as checking the battery health, ensuring proper charging, and following recommended service intervals, can help prevent issues that may trigger the P0B87 code.

10. What should I do if the P0B87 code keeps reappearing in my Saturn hybrid/electric vehicle after repairs?

If the P0B87 code keeps coming back after repairs, it is recommended to have the vehicle rechecked by a professional to ensure that the underlying issue is fully resolved.