AutoCodes – GMC – P0B3C GMC

P0B3C GMC Code - Hybrid/Electric Vehicle Battery 1 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: P0B3C GMC indicates Hybrid/Electric Vehicle Battery 1 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 931

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 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B3C 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 P0B3C GMC - Hybrid/Electric Vehicle Battery 1 Circuit Performance - AutoCodes.com — P0B3C GMC Code - Hybrid/Electric Vehicle Battery 1 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0B3C GMC?

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

How to Fix the DTC P0B3C 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 P0B3C 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 P0B3C GMC Code

1. What are the common symptoms of OBDII code P0B3C in a GMC hybrid/electric vehicle?

- Common symptoms include decreased vehicle performance, reduced fuel efficiency, and potential issues with battery charging.

2. What are the possible causes of OBDII code P0B3C in a GMC hybrid/electric vehicle?

- The code P0B3C may be triggered by a failing hybrid/electric vehicle battery 1, wiring issues, or problems with the battery management system.

3. How can I diagnose the OBDII code P0B3C in my GMC hybrid/electric vehicle?

- Diagnosis involves using a scan tool to read the code, checking the battery and related components for damage or corrosion, and performing a voltage test.

4. Can I drive my GMC hybrid/electric vehicle with the OBDII code P0B3C present?

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

5. How can I repair OBDII code P0B3C in my GMC hybrid/electric vehicle?

- Repair options may include replacing the hybrid/electric vehicle battery 1, repairing damaged wiring, or recalibrating the battery management system.

6. Are there any DIY tips for addressing OBDII code P0B3C in a GMC hybrid/electric vehicle?

- DIY tips include checking and tightening battery connections, inspecting for visible damage, and ensuring proper charging of the hybrid/electric battery.

7. How much does it typically cost to repair OBDII code P0B3C in a GMC hybrid/electric vehicle?

- The cost of repair can vary depending on the extent of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can a faulty hybrid/electric vehicle battery 1 cause other codes to appear along with P0B3C in a GMC?

- Yes, a failing hybrid/electric vehicle battery 1 can cause other related codes to appear, such as issues with battery temperature or voltage.

9. Is it safe to reset the OBDII code P0B3C in a GMC hybrid/electric vehicle without addressing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as the problem may persist and lead to further complications.

10. How often should I have my GMC hybrid/electric vehicle inspected to prevent OBDII code P0B3C from occurring?

- It is advisable to have regular maintenance check-ups on your hybrid/electric vehicle, especially focusing on the battery system, to prevent issues like code P0B3C from arising.