AutoCodes – Cadillac – P1BF0 Cadillac

P1BF0 Cadillac Code - Hybrid/Electric Vehicle Battery 90 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: P1BF0 Cadillac indicates Hybrid/Electric Vehicle Battery 90 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 859

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BF0 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 P1BF0 Cadillac - Hybrid/Electric Vehicle Battery 90 Circuit Performance - AutoCodes.com — P1BF0 Cadillac Code - Hybrid/Electric Vehicle Battery 90 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BF0 Cadillac?

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

How to Fix the DTC P1BF0 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 P1BF0 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 P1BF0 Cadillac Code

1. What are the common symptoms of OBDII code P1BF0 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, and potential issues with the hybrid/electric battery system.

2. What causes OBDII code P1BF0 to trigger in a Cadillac hybrid/electric vehicle?

- This code is typically triggered by a malfunction or performance issue in the 90 circuit of the hybrid/electric vehicle battery.

3. How can I diagnose the OBDII code P1BF0 in my Cadillac hybrid/electric vehicle?

- Diagnosing this code usually involves using a professional OBDII scanner to read the code, followed by a thorough inspection of the hybrid/electric battery system.

4. Is it safe to continue driving my Cadillac with OBDII code P1BF0 present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid/electric battery system.

5. What are some possible repair options for fixing OBDII code P1BF0 in a Cadillac hybrid/electric vehicle?

- Repair options may include checking and repairing any damaged wiring in the 90 circuit, replacing faulty components, or recalibrating the battery system.

6. Can I reset the OBDII code P1BF0 in my Cadillac hybrid/electric vehicle on my own?

- While you can clear the code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P1BF0 in a Cadillac hybrid/electric vehicle?

- The cost of repair can vary depending on the extent of the issue, but it may involve labor costs for diagnosis and repair, as well as the cost of any replacement parts.

8. Are there any preventive maintenance tips to help avoid OBDII code P1BF0 in a Cadillac hybrid/electric vehicle?

- Regularly inspecting the hybrid/electric battery system, ensuring proper charging habits, and following the manufacturer's maintenance schedule can help prevent this code.

9. Can extreme weather conditions affect the likelihood of OBDII code P1BF0 appearing in a Cadillac hybrid/electric vehicle?

- Yes, extreme temperatures can impact the performance of the hybrid/electric battery system and potentially lead to issues triggering this code.

10. Is it recommended to seek professional help for diagnosing and repairing OBDII code P1BF0 in a Cadillac hybrid/electric vehicle?

- Yes, due to the complexity of hybrid/electric vehicle systems, it is advisable to consult a qualified technician or dealership for accurate diagnosis and repair of this code.