AutoCodes – Cadillac – P1BA6 Cadillac

P1BA6 Cadillac Code - Hybrid/Electric Vehicle Battery 65 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: P1BA6 Cadillac indicates Hybrid/Electric Vehicle Battery 65 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 872

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BA6 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 P1BA6 Cadillac - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage - AutoCodes.com — P1BA6 Cadillac Code - Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BA6 Cadillac?

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

How to Fix the DTC P1BA6 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 P1BA6 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 P1BA6 Cadillac Code

1. What are the common symptoms of OBDII code P1BA6 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential warning lights on the dashboard.

2. What are the possible causes of the Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage code in a Cadillac?

- The code P1BA6 can be triggered by issues such as a faulty high-voltage battery pack, damaged battery cables, or a malfunctioning battery management system.

3. How can I diagnose the P1BA6 code in my Cadillac Hybrid/Electric Vehicle?

- Diagnosing the code involves using an OBDII scanner to retrieve the specific fault code, inspecting the high-voltage battery system for physical damage, and testing the battery voltage levels.

4. Can I still drive my Cadillac with the P1BA6 code present?

- It is not recommended to drive your Cadillac with the P1BA6 code active, as it can lead to further damage to the high-voltage battery system and compromise vehicle safety.

5. What repairs may be needed to fix the Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage issue in a Cadillac?

- Repairs may involve replacing damaged battery components, repairing or replacing faulty wiring, resetting the battery management system, or recalibrating the high-voltage system.

6. Are there any safety precautions to take when working on the high-voltage system related to code P1BA6?

- Working on the high-voltage system requires proper training and safety precautions, such as wearing insulated gloves, de-energizing the system, and following manufacturer guidelines.

7. How can I prevent the P1BA6 code from recurring in my Cadillac Hybrid/Electric Vehicle?

- Regular maintenance of the high-voltage battery system, monitoring battery health, and addressing any warning signs promptly can help prevent the recurrence of the P1BA6 code.

8. Is it necessary to visit a dealership for repairs related to the Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage code?

- While some repairs may require specialized equipment and expertise, independent hybrid specialists or certified technicians can also diagnose and repair issues related to code P1BA6.

9. Can a DIY enthusiast attempt to troubleshoot and repair the P1BA6 code in a Cadillac?

- DIY troubleshooting can be risky due to the high-voltage nature of the system. It is recommended to consult a professional or seek guidance from reputable sources before attempting any repairs.

10. How much can I expect to spend on repairs for the Hybrid/Electric Vehicle Battery 65 Circuit Low Voltage code in a Cadillac?

- Repair costs for the P1BA6 code can vary depending on the extent of the damage, parts required, and labor rates. It is advisable to obtain quotes from multiple sources before proceeding with repairs.