AutoCodes – GMC – P1BF6 GMC

P1BF6 GMC 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 GMC 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 755

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

What does this mean?

What are the Possible Causes of the DTC P1BF6 GMC?

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

How to Fix the DTC P1BF6 GMC?

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 GMC 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 GMC Code

1. What are the common symptoms of OBDII code P1BF6 in a GMC Hybrid/Electric Vehicle?

Symptoms may include reduced vehicle performance, decreased fuel efficiency, and a warning light illuminated on the dashboard.

2. What are the possible causes of OBDII code P1BF6 in a GMC Hybrid/Electric Vehicle?

Potential causes include a faulty battery 92 circuit, issues with the hybrid/electric system components, or wiring problems.

3. How can I diagnose the root cause of OBDII code P1BF6 in my GMC Hybrid/Electric Vehicle?

Diagnosis typically involves using a professional OBDII scanner to read the code, conducting a visual inspection of the battery and related components, and performing electrical tests as needed.

4. Can I continue driving my GMC Hybrid/Electric Vehicle with OBDII code P1BF6 present?

It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the hybrid/electric system and potentially compromise safety.

5. Are there any quick repair tips for fixing OBDII code P1BF6 in my GMC Hybrid/Electric Vehicle?

Quick tips include checking the battery connections for tightness, inspecting the wiring for any visible damage, and resetting the code to see if it reoccurs.

6. How much does it typically cost to repair OBDII code P1BF6 in a GMC Hybrid/Electric Vehicle?

Repair costs can vary depending on the exact cause of the code, but it is advisable to consult a professional mechanic or dealership for an accurate estimate.

7. Is it possible to prevent OBDII code P1BF6 from occurring in my GMC Hybrid/Electric Vehicle?

Regular maintenance of the hybrid/electric system, including checking the battery health and ensuring proper connections, can help prevent this code from appearing.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P1BF6 in a GMC Hybrid/Electric Vehicle?

While some basic troubleshooting steps can be taken, diagnosing and repairing this code often requires specialized tools and expertise, so it is best left to professionals.

9. How long does it take to repair OBDII code P1BF6 in a GMC Hybrid/Electric Vehicle?

The repair time can vary depending on the complexity of the issue, but it is advisable to plan for at least a few hours to a full day for diagnosis and potential repairs.

10. Is it safe to clear the OBDII code P1BF6 in my GMC Hybrid/Electric Vehicle without addressing the underlying issue?

Clearing the code without fixing the root cause can temporarily turn off the warning light, but the issue may resurface, leading to potential safety risks and further damage.