AutoCodes – Saturn – P0B86 Saturn

P0B86 Saturn Code - Hybrid/Electric Vehicle Battery 16 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: P0B86 Saturn indicates Hybrid/Electric Vehicle Battery 16 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 963

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 P0B86 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 P0B86 Saturn - Hybrid/Electric Vehicle Battery 16 Circuit - AutoCodes.com — P0B86 Saturn Code - Hybrid/Electric Vehicle Battery 16 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B86 Saturn?

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

How to Fix the DTC P0B86 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 P0B86 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 P0B86 Saturn Code

1. What are the common symptoms of OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- Common symptoms include a check engine light illuminating, reduced hybrid system performance, and potential issues with the battery charging system.

2. What causes the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- The code P0B86 typically indicates a fault in the Hybrid/Electric Vehicle Battery 16 Circuit, which could be caused by issues with the battery pack, high voltage wiring, or related components.

3. How can I diagnose the OBDII code P0B86 on my Saturn Hybrid/Electric Vehicle?

- Proper diagnosis usually involves using a scan tool to retrieve the specific trouble codes, inspecting the high voltage components for damage or loose connections, and testing the battery pack for any internal faults.

4. Can I still drive my Saturn Hybrid/Electric Vehicle with the OBDII code P0B86 present?

- It is not recommended to continue driving the vehicle with the code P0B86 present, as it can lead to further damage to the hybrid system and potentially pose safety risks due to the high voltage components involved.

5. Are there any DIY repair tips for fixing the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- DIY repair for this code is not recommended due to the high voltage nature of the components involved. It is best to consult a qualified technician or a dealership specializing in hybrid vehicle repairs.

6. How much does it typically cost to repair the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- Repair costs for the code P0B86 can vary depending on the exact cause of the issue, but it may involve replacing components in the hybrid system, which can be expensive. It's advisable to get a professional assessment for an accurate cost estimate.

7. Can a low battery voltage trigger the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- Yes, a low battery voltage or issues with the hybrid battery pack can potentially trigger the code P0B86, as the system relies on proper voltage levels for optimal operation.

8. Is it safe to clear the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle without fixing the underlying issue?

- It is not recommended to clear the code without addressing the underlying problem, as it will likely reappear once the system detects the fault again. Ignoring the issue can lead to further complications.

9. How long does it take to repair the OBDII code P0B86 on a Saturn Hybrid/Electric Vehicle?

- The repair time for the code P0B86 can vary depending on the exact cause of the fault and the availability of parts. It's best to consult with a professional technician for an estimated repair timeline.

10. Can a faulty Hybrid/Electric Vehicle Battery 16 Circuit affect the overall performance of a Saturn Hybrid/Electric Vehicle?

- Yes, a fault in the Hybrid/Electric Vehicle Battery 16 Circuit can significantly impact the overall performance of the vehicle, leading to reduced fuel efficiency, power delivery issues, and potential safety concerns.