AutoCodes – Cadillac – P1BF6 Cadillac

P1BF6 Cadillac Code - Hybrid/Electric Vehicle Battery 92 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: P1BF6 Cadillac indicates Hybrid/Electric Vehicle Battery 92 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 756

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 P1BF6 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 P1BF6 Cadillac - Hybrid/Electric Vehicle Battery 92 Circuit Performance - AutoCodes.com — P1BF6 Cadillac Code - Hybrid/Electric Vehicle Battery 92 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BF6 Cadillac?

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

How to Fix the DTC P1BF6 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 P1BF6 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 P1BF6 Cadillac Code

1. What are the common symptoms of OBDII code P1BF6 in a Cadillac hybrid/electric vehicle?

- Common symptoms include poor fuel economy, reduced vehicle performance, and potential issues with battery charging.

2. What are the possible causes of OBDII code P1BF6 in a Cadillac hybrid/electric vehicle?

- Possible causes include a faulty high voltage battery, damaged battery circuit components, or issues with the battery management system.

3. How can I diagnose the OBDII code P1BF6 in my Cadillac hybrid/electric vehicle?

- Diagnosing the code typically involves using a diagnostic scanner to read the code, checking the high voltage battery system for faults, and inspecting circuit connections.

4. What are some repair tips for addressing OBDII code P1BF6 in a Cadillac hybrid/electric vehicle?

- Repair tips may include inspecting and repairing damaged circuit wiring, replacing faulty battery components, or resetting the battery management system.

5. Can I continue driving my Cadillac with OBDII code P1BF6 present?

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

6. How much does it typically cost to repair OBDII code P1BF6 in a Cadillac hybrid/electric vehicle?

- The cost of repair can vary depending on the specific issue, but it may involve several hundred to over a thousand dollars for parts and labor.

7. Are there any safety precautions I should observe when dealing with OBDII code P1BF6 in a Cadillac hybrid/electric vehicle?

- Safety precautions may include wearing appropriate personal protective equipment, disconnecting the high voltage system before performing any repairs, and following manufacturer guidelines.

8. Can OBDII code P1BF6 be a recurring issue in a Cadillac hybrid/electric vehicle?

- If the underlying cause of the code is not properly addressed, it is possible for OBDII code P1BF6 to recur in the future.

9. Is it possible to reset the OBDII code P1BF6 in a Cadillac hybrid/electric vehicle without repairing the issue?

- While it is possible to clear the code temporarily, it is not recommended as the underlying problem will persist and may lead to more severe issues.

10. How can I prevent OBDII code P1BF6 from appearing in my Cadillac hybrid/electric vehicle?

- Regular maintenance and inspections of the high voltage battery system, as well as following manufacturer recommendations for battery care, can help prevent the occurrence of this code.