AutoCodes – GMC – P1B6F GMC

P1B6F GMC Code - Hybrid/Electric Vehicle Battery 47 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: P1B6F GMC indicates Hybrid/Electric Vehicle Battery 47 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 750

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 P1B6F 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 P1B6F GMC - Hybrid/Electric Vehicle Battery 47 Circuit Performance - AutoCodes.com — P1B6F GMC Code - Hybrid/Electric Vehicle Battery 47 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B6F GMC?

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

How to Fix the DTC P1B6F 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 P1B6F 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 P1B6F GMC Code

1. What are the common symptoms of OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential issues with the vehicle's battery charging.

2. What can cause the OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- The code P1B6F typically indicates a problem with Hybrid/Electric Vehicle Battery 47 Circuit performance, which can be caused by battery cell degradation, faulty battery management system, or wiring issues.

3. How can I diagnose the OBDII code P1B6F in my GMC Hybrid/Electric vehicle?

- Diagnosing the code P1B6F requires a scan tool that is capable of reading hybrid/electric vehicle codes. It's recommended to consult a professional mechanic with expertise in hybrid/electric vehicles for an accurate diagnosis.

4. What are the potential repair options for OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- Repair options may include replacing the Hybrid/Electric Vehicle Battery 47, repairing wiring connections, updating software, or recalibrating the battery management system.

5. Can I continue driving my GMC Hybrid/Electric vehicle with the OBDII code P1B6F present?

- It is not recommended to continue driving the vehicle with the code P1B6F present, as it can lead to further damage to the hybrid/electric system and potentially compromise vehicle safety.

6. How much does it typically cost to repair OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- Repair costs for the OBDII code P1B6F can vary depending on the specific issue causing the code and the extent of repairs needed. It's best to obtain a professional assessment for an accurate cost estimate.

7. Are there any maintenance tips to prevent OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- Regular maintenance of the hybrid/electric vehicle's battery system, including monitoring battery health and charging patterns, can help prevent issues that may trigger the P1B6F code.

8. How long does it typically take to repair the OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- The repair time for the P1B6F code can vary depending on the complexity of the issue and the availability of parts. It's advisable to consult with a mechanic for a more accurate estimate of repair time.

9. Can a DIY enthusiast attempt to fix the OBDII code P1B6F in a GMC Hybrid/Electric vehicle?

- Due to the complexity of hybrid/electric vehicle systems and the specialized equipment required, it's recommended to seek professional help for diagnosing and repairing the P1B6F code.

10. Is the OBDII code P1B6F specific to GMC Hybrid/Electric vehicles, or can it occur in other makes and models?

- The OBDII code P1B6F related to Hybrid/Electric Vehicle Battery 47 Circuit Performance is specific to GMC Hybrid/Electric vehicles and may not apply to other makes and models.