AutoCodes – Chevrolet – P0B89 Chevrolet

P0B89 Chevrolet Code - Hybrid/Electric Vehicle Battery 16 Circuit High Voltage

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: P0B89 Chevrolet indicates Hybrid/Electric Vehicle Battery 16 Circuit High Voltage.
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 951

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 P0B89 Chevrolet 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 P0B89 Chevrolet - Hybrid/Electric Vehicle Battery 16 Circuit High Voltage - AutoCodes.com — P0B89 Chevrolet Code - Hybrid/Electric Vehicle Battery 16 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B89 Chevrolet?

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

How to Fix the DTC P0B89 Chevrolet?

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 P0B89 Chevrolet 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 P0B89 Chevrolet code?

Need more information on how to fix the P0B89 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0B89 Chevrolet 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 P0B89 Chevrolet Code

1. What are the common symptoms of OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- Common symptoms include poor fuel economy, reduced performance, drivability issues, and the illumination of the check engine light.

2. What can cause the OBDII code P0B89 to trigger in a Chevrolet hybrid/electric vehicle?

- The code P0B89 is typically triggered by a high voltage condition detected in the Hybrid/Electric Vehicle Battery 16 Circuit, often caused by wiring issues or a faulty battery pack.

3. How serious is the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- The code P0B89 should be addressed promptly to prevent potential damage to the vehicle's electrical system and ensure optimal performance of the hybrid/electric components.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P0B89 present?

- It is not recommended to drive the vehicle with the code P0B89 present, as it can lead to further issues and potentially compromise the vehicle's safety and performance.

5. What are some DIY repair tips for addressing the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- DIY repair tips include checking for loose or damaged wiring in the Hybrid/Electric Vehicle Battery 16 Circuit, inspecting the battery pack for any visible damage, and ensuring proper connections.

6. How much does it typically cost to repair the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- The cost of repairing the OBDII code P0B89 can vary depending on the extent of the issue, but it may involve repairing or replacing wiring, addressing battery pack issues, or seeking professional diagnostics.

7. Can a regular mechanic diagnose and repair the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- While a regular mechanic may be able to diagnose and repair simpler issues related to the code P0B89, it is recommended to consult a specialized technician familiar with hybrid/electric vehicle systems for more complex repairs.

8. How can I prevent the OBDII code P0B89 from reoccurring in my Chevrolet hybrid/electric vehicle?

- Regular maintenance, such as checking the battery pack, ensuring proper wiring connections, and addressing any warning signs promptly, can help prevent the reoccurrence of the OBDII code P0B89.

9. Is it safe to reset the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle without addressing the underlying issue?

- It is not recommended to simply reset the code without addressing the underlying issue, as this can lead to ongoing problems and potential safety hazards in the vehicle's electrical system.

10. How long does it typically take to repair the OBDII code P0B89 in a Chevrolet hybrid/electric vehicle?

- The repair time for the OBDII code P0B89 can vary depending on the complexity of the issue and the availability of parts, but it may range from a few hours to a day or more, especially for more involved repairs.