AutoCodes – GMC – P1BC6 GMC

P1BC6 GMC Code - Hybrid/Electric Vehicle Battery 76 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: P1BC6 GMC indicates Hybrid/Electric Vehicle Battery 76 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 706

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1BC6 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 P1BC6 GMC - Hybrid/Electric Vehicle Battery 76 Circuit Performance - AutoCodes.com — P1BC6 GMC Code - Hybrid/Electric Vehicle Battery 76 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BC6 GMC?

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

How to Fix the DTC P1BC6 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 P1BC6 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.

Need more information about the P1BC6 GMC code?

Need more information on how to fix the P1BC6 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BC6 GMC code diagnosed by a professional: Find a repair shop in your area

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 P1BC6 GMC Code

1. What are the common symptoms of OBDII code P1BC6 in a GMC Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid battery performance, poor fuel efficiency, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code P1BC6 indicating Hybrid/Electric Vehicle Battery 76 Circuit Performance issues in a GMC?

- The code may be triggered by issues such as a faulty battery cell, damaged battery wiring, or problems with the battery management system.

3. How can I diagnose the source of OBDII code P1BC6 in my GMC Hybrid/Electric Vehicle?

- Diagnosis typically involves using a professional diagnostic scanner to read the code, inspecting the battery components, and checking for any visible damage or corrosion.

4. Is it safe to continue driving with OBDII code P1BC6 related to Hybrid/Electric Vehicle Battery 76 Circuit Performance in a GMC?

- It is not recommended to continue driving as the issue can affect the vehicle's performance and may lead to further damage to the hybrid/electric system.

5. What are some repair tips for addressing OBDII code P1BC6 in a GMC Hybrid/Electric Vehicle?

- Repair options may include replacing damaged battery components, repairing faulty wiring, resetting the battery management system, or seeking professional assistance from a certified technician.

6. Can I reset the OBDII code P1BC6 in my GMC Hybrid/Electric Vehicle on my own?

- While you can attempt to clear the code using an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P1BC6 related to Hybrid/Electric Vehicle Battery 76 Circuit Performance in a GMC?

- Repair costs can vary depending on the extent of the issue, parts needed for replacement, and labor fees. It is advisable to consult with a professional for an accurate estimate.

8. Can a DIY enthusiast with automotive experience fix OBDII code P1BC6 in a GMC Hybrid/Electric Vehicle?

- Depending on the individual's skills and knowledge, some DIY enthusiasts may be able to address minor issues related to the code. However, complex problems may require professional assistance.

9. What preventative maintenance steps can I take to avoid OBDII code P1BC6 in my GMC Hybrid/Electric Vehicle?

- Regularly inspecting the hybrid battery system, monitoring performance, and addressing any unusual symptoms promptly can help prevent issues leading to the P1BC6 code.

10. Are there any recalls or technical service bulletins related to OBDII code P1BC6 in GMC Hybrid/Electric Vehicles?

- It is advisable to check with the manufacturer or authorized dealerships for any recalls or technical service bulletins specifically addressing the P1BC6 code in GMC Hybrid/Electric Vehicles.