AutoCodes – Chevrolet – P0BAB Chevrolet

P0BAB Chevrolet Code - Hybrid/Electric Vehicle Battery 23 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: P0BAB Chevrolet indicates Hybrid/Electric Vehicle Battery 23 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 944

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 P0BAB 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 P0BAB Chevrolet - Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage - AutoCodes.com — P0BAB Chevrolet Code - Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BAB Chevrolet?

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

How to Fix the DTC P0BAB 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 P0BAB 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 P0BAB Chevrolet Code

1. What are the common symptoms of OBDII code P0BAB Chevrolet related to the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Common symptoms include reduced electric vehicle range, poor fuel efficiency, and potential warning lights on the dashboard.

2. What are the possible causes of the OBDII code P0BAB Chevrolet indicating Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Possible causes may include a faulty hybrid/electric vehicle battery, issues with the battery management system, or problems with battery temperature sensors.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage issue associated with OBDII code P0BAB Chevrolet?

- Diagnosing this issue may require performing a battery voltage test, checking battery connections, and using a scan tool to gather data from the hybrid/electric vehicle system.

4. Is it safe to continue driving with the OBDII code P0BAB Chevrolet indicating Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the hybrid/electric vehicle battery system and potentially affect the vehicle's performance.

5. Are there any repair tips for resolving the OBDII code P0BAB Chevrolet related to Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Repair tips may include inspecting and cleaning battery terminals, checking for loose connections, and consulting a professional technician for a thorough diagnosis and repair.

6. Can a DIY enthusiast fix the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage issue associated with OBDII code P0BAB Chevrolet?

- While some basic inspections and maintenance tasks can be performed by a DIY enthusiast, diagnosing and repairing complex hybrid/electric vehicle battery issues may require specialized knowledge and equipment best handled by a professional.

7. How much does it typically cost to repair the OBDII code P0BAB Chevrolet indicating Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Repair costs for this issue can vary depending on the underlying cause, the extent of the damage, and the labor rates of the repair shop. It is advisable to obtain multiple quotes from different service providers.

8. Will resetting the OBDII code P0BAB Chevrolet make the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage issue disappear?

- Resetting the code may temporarily clear the warning lights, but it will not fix the underlying problem causing the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage issue. It is crucial to address the root cause of the code.

9. Can extreme weather conditions contribute to triggering the OBDII code P0BAB Chevrolet for Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Yes, extreme temperatures, both hot and cold, can impact the performance and health of hybrid/electric vehicle batteries, potentially leading to issues like low voltage in the circuit.

10. Are there any preventive maintenance steps to reduce the likelihood of encountering the OBDII code P0BAB Chevrolet related to Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage?

- Regularly inspecting the battery system, keeping it clean, avoiding deep discharges, and following the manufacturer's recommended maintenance schedule can help reduce the risk of encountering this code.