AutoCodes – Chevrolet – P0B90 Chevrolet

P0B90 Chevrolet Code - Hybrid/Electric Vehicle Battery 18 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: P0B90 Chevrolet indicates Hybrid/Electric Vehicle Battery 18 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 884

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 P0B90 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 P0B90 Chevrolet - Hybrid/Electric Vehicle Battery 18 Circuit - AutoCodes.com — P0B90 Chevrolet Code - Hybrid/Electric Vehicle Battery 18 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B90 Chevrolet?

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

How to Fix the DTC P0B90 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 P0B90 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 P0B90 Chevrolet Code

1. What does OBDII code P0B90 for a Chevrolet Hybrid/Electric Vehicle Battery 18 Circuit indicate?

This code indicates a problem with the Hybrid/Electric Vehicle Battery 18 Circuit on a Chevrolet vehicle.

2. What are common symptoms of OBDII code P0B90 in a Chevrolet hybrid/electric vehicle?

Common symptoms include battery-related warning lights on the dashboard, decreased fuel efficiency, and issues with the vehicle's hybrid/electric system.

3. What are some possible causes of OBDII code P0B90 in a Chevrolet hybrid/electric vehicle?

Possible causes include a faulty battery pack, damaged wiring in the Hybrid/Electric Vehicle Battery 18 Circuit, or issues with the battery management system.

4. How can I diagnose the OBDII code P0B90 in my Chevrolet hybrid/electric vehicle?

Diagnosing this code typically requires specialized diagnostic equipment to analyze the battery system, circuitry, and related components for faults.

5. Is it safe to continue driving with OBDII code P0B90 in my Chevrolet hybrid/electric vehicle?

It is not recommended to continue driving with this code present, as it can indicate potential issues with the high-voltage battery system that may affect the vehicle's performance and safety.

6. What are some repair tips for fixing OBDII code P0B90 in a Chevrolet hybrid/electric vehicle?

Repair tips may include checking and repairing damaged wiring, testing and replacing the battery pack if necessary, and resetting the fault codes after repairs are completed.

7. Can I reset the OBDII code P0B90 in my Chevrolet hybrid/electric vehicle myself?

While you can attempt to reset the code using an OBDII scanner, it is important to diagnose and address the underlying issue causing the fault code to prevent it from recurring.

8. How much does it typically cost to repair OBDII code P0B90 in a Chevrolet hybrid/electric vehicle?

The cost of repair can vary depending on the extent of the issue, the parts needed for replacement, and whether the repair is done by a dealership or an independent mechanic specializing in hybrid/electric vehicles.

9. Are there any recalls or technical service bulletins related to OBDII code P0B90 in Chevrolet hybrid/electric vehicles?

It is advisable to check with Chevrolet dealerships or the manufacturer's website for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or remedies available.

10. How can I prevent OBDII code P0B90 from appearing in my Chevrolet hybrid/electric vehicle in the future?

Regular maintenance, such as checking the battery system, monitoring for warning signs, and addressing issues promptly, can help prevent the recurrence of OBDII code P0B90 in your Chevrolet hybrid/electric vehicle.