AutoCodes – GMC – P0B6A GMC

P0B6A GMC Code - Hybrid/Electric Vehicle Battery 10 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: P0B6A GMC indicates Hybrid/Electric Vehicle Battery 10 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 998

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B6A 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 P0B6A GMC - Hybrid/Electric Vehicle Battery 10 Circuit Low Voltage - AutoCodes.com — P0B6A GMC Code - Hybrid/Electric Vehicle Battery 10 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0B6A GMC?

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

How to Fix the DTC P0B6A 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 P0B6A 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 P0B6A GMC Code

1. What are the common symptoms of OBDII code P0B6A GMC?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and warning lights on the dashboard.

2. What can cause the OBDII code P0B6A GMC to trigger?

- The code P0B6A GMC is triggered when the hybrid/electric vehicle battery 10 circuit detects low voltage, which can be caused by battery degradation, a faulty battery module, or wiring issues.

3. How can I diagnose the OBDII code P0B6A GMC?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the hybrid/electric vehicle battery connections, and testing the individual battery modules for voltage levels.

4. Can I still drive my vehicle with the OBDII code P0B6A GMC present?

- It is not recommended to drive the vehicle with the code P0B6A GMC present, as it can lead to further damage to the hybrid/electric vehicle battery system and potentially affect the overall performance of the vehicle.

5. What are some repair tips for addressing the OBDII code P0B6A GMC?

- Repair options may include replacing the faulty battery module, repairing any damaged wiring, or performing a battery pack reconditioning procedure to restore voltage levels.

6. How much does it typically cost to repair the OBDII code P0B6A GMC?

- The cost of repair can vary depending on the extent of the issue and the specific components that need to be replaced. It is advisable to consult with a professional mechanic for an accurate cost estimate.

7. Can I reset the OBDII code P0B6A GMC without fixing the underlying issue?

- While you can clear the trouble code using a diagnostic scanner, it is important to address the root cause of the issue to prevent the code from reoccurring and ensure the proper functioning of the hybrid/electric vehicle system.

8. How often does the OBDII code P0B6A GMC occur in hybrid/electric vehicles?

- The code P0B6A GMC related to the hybrid/electric vehicle battery 10 circuit low voltage can occur sporadically, especially in older vehicles or those with high mileage.

9. Are there any preventive maintenance steps to avoid the OBDII code P0B6A GMC?

- Regularly monitoring the hybrid/electric vehicle battery health, performing scheduled maintenance, and avoiding deep discharges can help prevent issues leading to the code P0B6A GMC.

10. Is it safe to attempt DIY repairs for the OBDII code P0B6A GMC?

- Due to the complexity of hybrid/electric vehicle systems and the potential safety hazards involved, it is recommended to seek professional assistance or consult the vehicle's service manual for guidance on repairs related to the code P0B6A GMC.