AutoCodes – Cadillac – P1BCF Cadillac

P1BCF Cadillac Code - Hybrid/Electric Vehicle Battery 79 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: P1BCF Cadillac indicates Hybrid/Electric Vehicle Battery 79 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 853

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 P1BCF 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 P1BCF Cadillac - Hybrid/Electric Vehicle Battery 79 Circuit Performance - AutoCodes.com — P1BCF Cadillac Code - Hybrid/Electric Vehicle Battery 79 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BCF Cadillac?

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

How to Fix the DTC P1BCF 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 P1BCF 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 P1BCF Cadillac Code

1. What are the common symptoms of OBDII code P1BCF on a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential difficulty starting the vehicle.

2. What are the possible causes of OBDII code P1BCF on a Cadillac Hybrid/Electric Vehicle?

- The code may be triggered by issues such as a faulty hybrid/electric vehicle battery, damaged battery circuitry, or problems with the battery management system.

3. How can I diagnose the OBDII code P1BCF on my Cadillac Hybrid/Electric Vehicle?

- Diagnosing this code typically involves using a diagnostic scan tool to retrieve the specific fault codes, inspecting the battery connections, and testing the battery voltage and health.

4. Can I continue driving my Cadillac with the OBDII code P1BCF present?

- It is not recommended to continue driving the vehicle with this code present, as it may lead to further damage to the hybrid/electric system and potentially cause safety risks.

5. How can I repair OBDII code P1BCF on my Cadillac Hybrid/Electric Vehicle?

- Repair options may include replacing the hybrid/electric vehicle battery, repairing or replacing damaged circuitry, resetting the battery management system, or seeking assistance from a qualified technician.

6. Are there any preventive maintenance steps to avoid OBDII code P1BCF on a Cadillac Hybrid/Electric Vehicle?

- Regularly inspecting the battery connections, monitoring battery health, maintaining proper charging habits, and following the manufacturer's recommended maintenance schedule can help prevent this code.

7. Will resetting the OBDII code P1BCF on my Cadillac Hybrid/Electric Vehicle make it go away permanently?

- Resetting the code may clear it temporarily, but if the underlying issue is not addressed and repaired, the code is likely to reappear.

8. How much does it typically cost to repair OBDII code P1BCF on a Cadillac Hybrid/Electric Vehicle?

- Repair costs can vary depending on the specific issue causing the code, but they may range from a few hundred to several thousand dollars, especially if the hybrid/electric vehicle battery needs replacement.

9. Can a DIY enthusiast with automotive knowledge repair OBDII code P1BCF on a Cadillac Hybrid/Electric Vehicle?

- While some basic diagnostic and repair tasks may be possible for DIY enthusiasts, repairing this code on a hybrid/electric vehicle often requires specialized tools and expertise, so it is recommended to seek professional help.

10. Are there any recalls or technical service bulletins related to OBDII code P1BCF on Cadillac Hybrid/Electric Vehicles?

- It is advisable to check with your local Cadillac dealership or visit the official manufacturer's website to see if there are any recalls or technical service bulletins related to this specific OBDII code for your vehicle model.