AutoCodes – Cadillac – P0BA6 Cadillac

P0BA6 Cadillac Code - Hybrid/Electric Vehicle Battery 22 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: P0BA6 Cadillac indicates Hybrid/Electric Vehicle Battery 22 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 833

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 P0BA6 Cadillac 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 P0BA6 Cadillac - Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage - AutoCodes.com — P0BA6 Cadillac Code - Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BA6 Cadillac?

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

How to Fix the DTC P0BA6 Cadillac?

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 P0BA6 Cadillac 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 P0BA6 Cadillac Code

1. What are the common symptoms of OBDII code P0BA6 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced electric propulsion performance, check engine light illumination, and potential battery-related warnings on the dashboard.

2. What are the possible causes of OBDII code P0BA6 indicating Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage in a Cadillac?

- Possible causes may include a faulty high voltage battery pack, issues with the battery management system, damaged wiring or connectors related to the battery circuit, or a malfunctioning battery temperature sensor.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage issue in my Cadillac with OBDII code P0BA6?

- Diagnosis typically involves using a scan tool to retrieve the specific fault codes, inspecting the high voltage battery and its components for damage, and testing the battery voltage levels and temperature sensor functionality.

4. Is it safe to drive a Cadillac with OBDII code P0BA6 indicating low voltage in the hybrid/electric vehicle battery circuit?

- It is not recommended to drive the vehicle with this code present, as it may lead to decreased performance and potential safety hazards. It's advisable to have the issue diagnosed and repaired promptly.

5. What are some repair tips for addressing OBDII code P0BA6 related to low voltage in the Cadillac's hybrid/electric vehicle battery circuit?

- Repair tips may include checking and repairing damaged wiring or connectors, replacing the faulty battery components, resetting the battery management system, and ensuring proper battery cooling and ventilation.

6. Can a DIY enthusiast fix the Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage issue with OBDII code P0BA6 in a Cadillac?

- Due to the complexity and high voltage nature of the hybrid/electric vehicle battery system, it is recommended to seek professional help or assistance from certified technicians to diagnose and repair this issue correctly and safely.

7. How much does it typically cost to repair OBDII code P0BA6 related to low voltage in the hybrid/electric vehicle battery circuit of a Cadillac?

- Repair costs can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It's best to consult with a dealership or reputable auto repair shop for an accurate estimate.

8. Will resetting the OBDII code P0BA6 clear the issue with the low voltage in the Cadillac's hybrid/electric vehicle battery circuit?

- Simply clearing the fault code may not resolve the underlying problem causing the low voltage issue. It's important to diagnose the root cause and perform necessary repairs to ensure the problem is fixed.

9. How can I prevent OBDII code P0BA6 from reoccurring in my Cadillac hybrid/electric vehicle after it has been repaired?

- Regular maintenance of the high voltage battery system, monitoring battery health and temperature, and addressing any related issues promptly can help prevent the reoccurrence of code P0BA6 in the future.

10. Are there any recalls or technical service bulletins related to OBDII code P0BA6 and the Hybrid/Electric Vehicle Battery 22 Circuit Low Voltage issue in Cadillac vehicles?

- It's advisable to check with the nearest Cadillac dealership or the manufacturer's website for any recalls or technical service bulletins regarding this specific OBDII code and related battery circuit issues in Cadillac hybrid/electric vehicles.