AutoCodes – Chevrolet – P0B63 Chevrolet

P0B63 Chevrolet Code - Hybrid/Electric Vehicle Battery 9 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: P0B63 Chevrolet indicates Hybrid/Electric Vehicle Battery 9 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 983

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 P0B63 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 P0B63 Chevrolet - Hybrid/Electric Vehicle Battery 9 Circuit - AutoCodes.com — P0B63 Chevrolet Code - Hybrid/Electric Vehicle Battery 9 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B63 Chevrolet?

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

How to Fix the DTC P0B63 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 P0B63 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.

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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 P0B63 Chevrolet Code

1. What does the OBDII code P0B63 for Chevrolet Hybrid/Electric Vehicle Battery 9 Circuit indicate?

The code P0B63 suggests an issue with the Hybrid/Electric Vehicle Battery 9 Circuit in a Chevrolet vehicle.

2. What are common symptoms of the P0B63 code?

Common symptoms include decreased hybrid system performance, reduced fuel efficiency, and potential difficulty starting the vehicle.

3. What are possible causes of the P0B63 code in a Chevrolet vehicle?

Possible causes include a faulty Hybrid/Electric Vehicle Battery 9 Circuit, damaged wiring in the battery circuit, or issues with the battery control module.

4. How can I diagnose the P0B63 code in my Chevrolet vehicle?

Diagnosing the P0B63 code typically involves using a diagnostic scanner to retrieve the specific fault codes, inspecting the battery circuit and connections, and testing the battery control module.

5. Can I still drive my Chevrolet vehicle with the P0B63 code present?

It is not recommended to drive your vehicle with the P0B63 code active, as it can lead to further damage to the hybrid system and potentially cause safety hazards.

6. How can I repair the P0B63 code in my Chevrolet vehicle?

Repairing the P0B63 code may involve replacing the Hybrid/Electric Vehicle Battery 9 Circuit, repairing damaged wiring, or recalibrating the battery control module.

7. Is the repair for the P0B63 code something I can do myself?

Repairing the P0B63 code may require specialized tools and knowledge of hybrid vehicle systems, so it is recommended to seek assistance from a qualified mechanic or dealership.

8. How much does it typically cost to repair the P0B63 code in a Chevrolet vehicle?

The cost of repairing the P0B63 code can vary depending on the extent of the damage and the specific parts that need to be replaced, but it can range from a few hundred to a few thousand dollars.

9. Are there any preventive maintenance tips to avoid the P0B63 code in a Chevrolet vehicle?

Regularly inspecting the hybrid system components, following the manufacturer's recommended maintenance schedule, and avoiding harsh driving conditions can help prevent issues that may trigger the P0B63 code.

10. Can the P0B63 code be related to other OBDII codes in a Chevrolet hybrid vehicle?

Yes, the P0B63 code may be related to other hybrid system codes, so it is important to address all fault codes present during the diagnostic process to ensure a comprehensive repair.