AutoCodes – Cadillac – P1BA0 Cadillac

P1BA0 Cadillac Code - Hybrid/Electric Vehicle Battery 63 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: P1BA0 Cadillac indicates Hybrid/Electric Vehicle Battery 63 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 1,010

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 P1BA0 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 P1BA0 Cadillac - Hybrid/Electric Vehicle Battery 63 Circuit Low Voltage - AutoCodes.com — P1BA0 Cadillac Code - Hybrid/Electric Vehicle Battery 63 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BA0 Cadillac?

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

How to Fix the DTC P1BA0 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 P1BA0 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 P1BA0 Cadillac Code

1. What are the common symptoms of OBDII code P1BA0 in a Cadillac hybrid/electric vehicle?

- Common symptoms include poor fuel efficiency, reduced power, and illuminated warning lights on the dashboard related to the hybrid or electric system.

2. What can cause the OBDII code P1BA0 to trigger in a Cadillac hybrid/electric vehicle?

- The code P1BA0 may be triggered by issues such as a faulty hybrid/electric vehicle battery, damaged wiring, or a malfunction in the battery management system.

3. How can I diagnose the OBDII code P1BA0 in my Cadillac hybrid/electric vehicle?

- Proper diagnosis typically involves using a diagnostic scanner to retrieve the fault code, inspecting the hybrid/electric battery and related components for visible damage, and testing the voltage levels across the circuits.

4. What are some possible repair options for OBDII code P1BA0 in a Cadillac hybrid/electric vehicle?

- Repair options may include repairing or replacing damaged wiring, replacing the hybrid/electric vehicle battery, recalibrating the battery management system, or updating the vehicle's software.

5. Is it safe to continue driving my Cadillac with OBDII code P1BA0 present?

- It is not recommended to continue driving your Cadillac with the code P1BA0 present, as it can lead to further damage to the hybrid/electric system and potentially affect the vehicle's performance and safety.

6. Can I reset the OBDII code P1BA0 in my Cadillac hybrid/electric vehicle by disconnecting the battery?

- While disconnecting the battery may temporarily clear the code, it is not a recommended long-term solution. It is best to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P1BA0 in a Cadillac hybrid/electric vehicle?

- Repair costs can vary depending on the specific issue causing the code, but it is advisable to consult a qualified mechanic or dealership for an accurate diagnosis and cost estimate.

8. Will OBDII code P1BA0 in a Cadillac hybrid/electric vehicle affect the vehicle's emissions or overall performance?

- Yes, the code P1BA0 can impact the vehicle's emissions and overall performance, as it indicates a problem with the hybrid/electric system that may affect fuel efficiency and power delivery.

9. Can I prevent OBDII code P1BA0 from appearing in my Cadillac hybrid/electric vehicle?

- Regular maintenance and inspections of the hybrid/electric system, including the battery and related components, can help prevent issues that may trigger the code P1BA0.

10. Should I attempt to repair OBDII code P1BA0 in my Cadillac hybrid/electric vehicle myself, or seek professional help?

- Due to the complexity of the hybrid/electric system and potential safety hazards, it is recommended to seek the assistance of a qualified mechanic or dealership for diagnosing and repairing the code P1BA0.