AutoCodes – GMC – P0BA2 GMC

P0BA2 GMC Code - Hybrid/Electric Vehicle Battery 21 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: P0BA2 GMC indicates Hybrid/Electric Vehicle Battery 21 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.

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Code Popularity 808

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 P0BA2 GMC 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 P0BA2 GMC - Hybrid/Electric Vehicle Battery 21 Circuit High Voltage - AutoCodes.com — P0BA2 GMC Code - Hybrid/Electric Vehicle Battery 21 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0BA2 GMC?

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

How to Fix the DTC P0BA2 GMC?

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 P0BA2 GMC 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 P0BA2 GMC Code

1. What are common symptoms of OBDII code P0BA2 GMC related to the Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Common symptoms include the illumination of the check engine light, reduced hybrid/electric vehicle performance, and potential issues with the high voltage battery system.

2. What are possible causes of OBDII code P0BA2 GMC indicating Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Possible causes include faulty high voltage battery cells, damaged wiring or connectors in the battery circuit, or issues with the battery management system.

3. How can I diagnose OBDII code P0BA2 GMC for the Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific error code, inspecting the high voltage battery system components for damage, and testing the circuit for continuity.

4. Is it safe to continue driving with OBDII code P0BA2 GMC and the Hybrid/Electric Vehicle Battery 21 Circuit High Voltage issue?

- It is not recommended to continue driving with this code present, as it may lead to further damage to the high voltage battery system and compromise the safety and performance of the vehicle.

5. What are some repair tips for resolving OBDII code P0BA2 GMC related to Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing faulty high voltage battery cells, or recalibrating the battery management system.

6. Can OBDII code P0BA2 GMC be a false alarm or intermittent issue related to Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- While intermittent issues are possible, it is important to address the underlying cause of the code to prevent potential safety hazards and ensure the proper functioning of the high voltage battery system.

7. How can I prevent OBDII code P0BA2 GMC from appearing in the future for the Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Regular maintenance of the high voltage battery system, including monitoring the battery health and addressing any warning signs promptly, can help prevent the recurrence of this code.

8. Are there specific tools or equipment required to diagnose and repair OBDII code P0BA2 GMC for the Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- Professional OBDII scanners capable of reading hybrid/electric vehicle codes, multimeters for electrical testing, and specialized tools for working with high voltage systems may be necessary for diagnosis and repair.

9. Can DIY enthusiasts attempt to fix OBDII code P0BA2 GMC related to Hybrid/Electric Vehicle Battery 21 Circuit High Voltage?

- While some basic troubleshooting steps can be taken, working on high voltage systems requires specialized knowledge and safety precautions, so it is recommended to seek professional assistance for complex repairs.

10. How soon should I address OBDII code P0BA2 GMC indicating Hybrid/Electric Vehicle Battery 21 Circuit High Voltage to prevent further damage?

- It is advisable to address this code as soon as possible to prevent potential damage to the high voltage battery system, avoid safety risks, and ensure the proper functioning of the hybrid/electric vehicle.