AutoCodes – Chevrolet – P0B88 Chevrolet

P0B88 Chevrolet Code - Hybrid/Electric Vehicle Battery 16 Circuit Low 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: P0B88 Chevrolet indicates Hybrid/Electric Vehicle Battery 16 Circuit Low 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.

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Code Popularity 1,050

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 P0B88 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 P0B88 Chevrolet - Hybrid/Electric Vehicle Battery 16 Circuit Low Voltage - AutoCodes.com — P0B88 Chevrolet Code - Hybrid/Electric Vehicle Battery 16 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B88 Chevrolet?

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

How to Fix the DTC P0B88 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 P0B88 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 P0B88 Chevrolet Code

1. What are the common symptoms of OBDII code P0B88 in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms include reduced electric vehicle range, poor battery performance, and potential issues with starting the vehicle.

2. What could cause the OBDII code P0B88 to trigger in a Chevrolet Hybrid/Electric Vehicle?

- The code P0B88 is typically triggered due to low voltage in the Hybrid/Electric Vehicle Battery 16 Circuit, which can be caused by a faulty battery, damaged battery cells, or issues with the battery management system.

3. How can I diagnose the OBDII code P0B88 in my Chevrolet Hybrid/Electric Vehicle?

- Diagnosis usually involves using a scan tool to read the code, checking the battery voltage levels, inspecting the battery connections, and performing a thorough analysis of the hybrid/electric system.

4. Can I continue driving my Chevrolet Hybrid/Electric Vehicle with the OBDII code P0B88 present?

- It is not recommended to continue driving with the P0B88 code active, as it can lead to further damage to the battery system and potentially cause safety hazards.

5. What are some repair tips for resolving the OBDII code P0B88 in a Chevrolet Hybrid/Electric Vehicle?

- Repair tips may include checking and repairing any damaged battery cells, replacing the faulty battery components, resetting the battery management system, and ensuring proper charging infrastructure.

6. Is it safe to attempt DIY repairs for the OBDII code P0B88 in a Chevrolet Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric vehicle systems and the high-voltage nature of the battery, it is recommended to seek professional help for diagnosing and repairing the P0B88 code.

7. How much does it cost to repair the OBDII code P0B88 in a Chevrolet Hybrid/Electric Vehicle?

- The cost of repairs can vary depending on the extent of the issue, the parts needed for replacement, and labor costs. It is advisable to consult a certified technician for an accurate estimate.

8. Can a weak or failing 12V battery cause the OBDII code P0B88 to trigger in a Chevrolet Hybrid/Electric Vehicle?

- Yes, a weak or failing 12V battery can sometimes lead to issues with the high-voltage battery system, triggering the P0B88 code. It is important to ensure the 12V battery is in good condition.

9. Are there any recalls or technical service bulletins related to the OBDII code P0B88 in Chevrolet Hybrid/Electric Vehicles?

- It is recommended to check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins related to the P0B88 code in specific models.

10. How can regular maintenance help prevent the occurrence of the OBDII code P0B88 in Chevrolet Hybrid/Electric Vehicles?

- Regular maintenance, including battery health checks, software updates, and following manufacturer guidelines for charging and usage, can help prevent issues leading to the P0B88 code in Chevrolet Hybrid/Electric Vehicles.