AutoCodes – GMC – P0BA7 GMC

P0BA7 GMC Code - Hybrid/Electric Vehicle Battery 22 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: P0BA7 GMC indicates Hybrid/Electric Vehicle Battery 22 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 932

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 P0BA7 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 P0BA7 GMC - Hybrid/Electric Vehicle Battery 22 Circuit High Voltage - AutoCodes.com — P0BA7 GMC Code - Hybrid/Electric Vehicle Battery 22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0BA7 GMC?

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

How to Fix the DTC P0BA7 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 P0BA7 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 P0BA7 GMC Code

1. What are the common symptoms of OBDII code P0BA7 in a GMC Hybrid/Electric Vehicle?

Symptoms may include the check engine light illuminating, reduced hybrid system performance, and potential issues with the high voltage battery.

2. What are possible causes of the OBDII code P0BA7 related to the Hybrid/Electric Vehicle Battery 22 Circuit High Voltage in a GMC vehicle?

Causes can range from a faulty high voltage battery pack to wiring issues, damaged connectors, or problems with the battery control module.

3. How can I diagnose the OBDII code P0BA7 in my GMC Hybrid/Electric Vehicle?

Diagnosis involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the high voltage battery system components, and checking for any visible signs of damage or corrosion.

4. Can I still drive my GMC Hybrid/Electric Vehicle with the OBDII code P0BA7 present?

It is not recommended to drive the vehicle with this code present, as it can indicate potential high voltage safety issues and may lead to further damage if not addressed promptly.

5. What are some repair tips for fixing the Hybrid/Electric Vehicle Battery 22 Circuit High Voltage issue in a GMC vehicle?

Repair tips may include ensuring proper insulation of high voltage components, replacing damaged wiring or connectors, resetting the battery control module, and performing a thorough inspection of the battery system.

6. Is it safe to attempt DIY repairs for the OBDII code P0BA7 in a GMC Hybrid/Electric Vehicle?

Due to the high voltage nature of the components involved, it is recommended to seek professional help or consult with a certified technician for repairs related to the high voltage battery system.

7. How much does it typically cost to repair the OBDII code P0BA7 in a GMC Hybrid/Electric Vehicle?

Costs can vary depending on the exact cause of the issue, but repairs related to the high voltage battery system may range from a few hundred to several thousand dollars, including parts and labor.

8. Can the OBDII code P0BA7 be intermittent in a GMC Hybrid/Electric Vehicle?

Yes, intermittent issues with the high voltage battery system can sometimes trigger the code sporadically, making diagnosis and repair more challenging.

9. Will resetting the fault codes clear the OBDII code P0BA7 in a GMC Hybrid/Electric Vehicle?

Resetting the fault codes may temporarily clear the code, but it is essential to address the underlying issue causing the fault code to prevent it from reoccurring.

10. How important is it to address the OBDII code P0BA7 promptly in a GMC Hybrid/Electric Vehicle?

It is crucial to address this code promptly to ensure the safety and performance of the high voltage system in the vehicle, as unresolved issues can lead to further damage and potential safety risks.