AutoCodes – GMC – P1BF7 GMC

P1BF7 GMC Code - Hybrid/Electric Vehicle Battery 92 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: P1BF7 GMC indicates Hybrid/Electric Vehicle Battery 92 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 771

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 P1BF7 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 P1BF7 GMC - Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage - AutoCodes.com — P1BF7 GMC Code - Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BF7 GMC?

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

How to Fix the DTC P1BF7 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 P1BF7 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 P1BF7 GMC Code

1. What are the common symptoms of OBDII code P1BF7 GMC related to Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Common symptoms include poor hybrid system performance, reduced electric driving range, and potential engine stalling.

2. What are the possible causes of OBDII code P1BF7 GMC indicating Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Causes may include a failing hybrid/electric vehicle battery, damaged battery wiring, or issues with the battery control module.

3. How can I diagnose the OBDII code P1BF7 GMC for Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Diagnosis typically involves testing the battery voltage, inspecting the battery connections, and scanning for other related trouble codes.

4. Can I continue driving my vehicle with OBDII code P1BF7 GMC triggered for Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the hybrid/electric system.

5. What are the repair options for addressing OBDII code P1BF7 GMC associated with Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Repair options may include replacing the hybrid/electric vehicle battery, repairing damaged wiring, or reprogramming the battery control module.

6. How much does it typically cost to fix OBDII code P1BF7 GMC linked to Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- The cost can vary depending on the extent of the issue, but repairs related to this code can range from a few hundred to a few thousand dollars.

7. Are there any preventative maintenance tips to avoid encountering OBDII code P1BF7 GMC for Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Regularly check the health of the hybrid/electric vehicle battery, ensure proper charging habits, and address any battery-related issues promptly.

8. Can a DIY enthusiast fix OBDII code P1BF7 GMC for Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- While some simple checks and maintenance tasks can be done by DIY enthusiasts, diagnosing and repairing complex hybrid/electric system issues may require professional help.

9. Will resetting the OBDII code P1BF7 GMC clear the issue related to Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- Resetting the code may temporarily clear the warning light, but it is crucial to address the underlying problem to prevent further damage to the vehicle.

10. How long does it typically take to repair OBDII code P1BF7 GMC concerning Hybrid/Electric Vehicle Battery 92 Circuit Low Voltage?

- The repair time can vary based on the specific issue and availability of parts, but it may take a few hours to a day for a qualified technician to address the problem.