AutoCodes – GMC – P0BA5 GMC

P0BA5 GMC Code - Hybrid/Electric Vehicle Battery 22 Circuit Performance

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: P0BA5 GMC indicates Hybrid/Electric Vehicle Battery 22 Circuit Performance.
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 1,066

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 P0BA5 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 P0BA5 GMC - Hybrid/Electric Vehicle Battery 22 Circuit Performance - AutoCodes.com — P0BA5 GMC Code - Hybrid/Electric Vehicle Battery 22 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0BA5 GMC?

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

How to Fix the DTC P0BA5 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 P0BA5 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 P0BA5 GMC Code

1. What are the common symptoms of OBDII code P0BA5 in a GMC hybrid/electric vehicle?

- Common symptoms include reduced battery performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What can cause the OBDII code P0BA5 to trigger in a GMC hybrid/electric vehicle?

- The code P0BA5 typically triggers due to issues with the hybrid/electric vehicle battery 22 circuit, such as wiring faults, connector issues, or internal battery problems.

3. How can I diagnose the OBDII code P0BA5 in my GMC hybrid/electric vehicle?

- Diagnosis involves using a professional OBDII scanner to read the code, inspecting the battery 22 circuit for any visible damage, and testing the battery's voltage and connection points.

4. Is it safe to continue driving my GMC hybrid/electric vehicle with the P0BA5 code present?

- It is not recommended to drive the vehicle with the P0BA5 code as it can lead to further damage to the hybrid/electric system and affect overall vehicle performance.

5. What are some DIY repair tips for addressing the OBDII code P0BA5 in a GMC hybrid/electric vehicle?

- DIY repair tips include checking and securing all battery connections, inspecting wiring for damage, and ensuring proper voltage levels in the battery system.

6. Can resetting the OBDII code P0BA5 in my GMC hybrid/electric vehicle fix the issue temporarily?

- Resetting the code may temporarily turn off the check engine light, but it will not address the underlying issue causing the P0BA5 code to trigger.

7. How much does it typically cost to repair the OBDII code P0BA5 in a GMC hybrid/electric vehicle?

- Repair costs for the P0BA5 code can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars for professional diagnosis and repairs.

8. Are there any recalls or technical service bulletins related to the OBDII code P0BA5 in GMC hybrid/electric vehicles?

- It's advisable to check with GMC dealerships or official sources for any recalls or technical service bulletins related to the P0BA5 code to see if your vehicle is affected.

9. Can a faulty hybrid/electric vehicle battery 22 circuit impact the overall performance of my GMC vehicle?

- Yes, a faulty battery 22 circuit can lead to decreased performance, reduced fuel efficiency, and potential drivability issues in a GMC hybrid/electric vehicle.

10. How often should I have the battery system in my GMC hybrid/electric vehicle inspected to prevent issues like the OBDII code P0BA5?

- Regular maintenance schedules, as recommended by the manufacturer, should be followed to ensure the battery system is inspected and maintained properly to prevent issues like the P0BA5 code.