AutoCodes – Chevrolet – P1BCC Chevrolet

P1BCC Chevrolet Code - Hybrid/Electric Vehicle Battery 78 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: P1BCC Chevrolet indicates Hybrid/Electric Vehicle Battery 78 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 784

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 P1BCC Chevrolet 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 P1BCC Chevrolet - Hybrid/Electric Vehicle Battery 78 Circuit Performance - AutoCodes.com — P1BCC Chevrolet Code - Hybrid/Electric Vehicle Battery 78 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BCC Chevrolet?

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

How to Fix the DTC P1BCC Chevrolet?

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 P1BCC Chevrolet 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 P1BCC Chevrolet Code

1. What are the common symptoms of OBDII code P1BCC in a Chevrolet hybrid/electric vehicle?

- Common symptoms include decreased fuel efficiency, poor acceleration, and the vehicle may go into a reduced power mode.

2. What are some possible causes of OBDII code P1BCC in a Chevrolet hybrid/electric vehicle?

- Possible causes include issues with the high voltage battery, battery management system faults, wiring problems, or a faulty battery control module.

3. How can I diagnose the OBDII code P1BCC in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to read the code and performing a thorough inspection of the high voltage battery system, wiring, and battery control module.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with OBDII code P1BCC?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the high voltage battery system.

5. What are some repair tips for fixing OBDII code P1BCC in a Chevrolet hybrid/electric vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty battery components, or reprogramming the battery control module.

6. Is it safe to attempt repairs on the high voltage battery system related to OBDII code P1BCC?

- Repairs on the high voltage battery system should only be attempted by qualified technicians with experience working on hybrid/electric vehicles due to the high voltage risks involved.

7. How much does it typically cost to repair OBDII code P1BCC in a Chevrolet hybrid/electric vehicle?

- Repair costs can vary depending on the specific issue, but it is important to budget for potentially expensive repairs related to the high voltage battery system.

8. Will resetting the OBDII code P1BCC in my Chevrolet hybrid/electric vehicle make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

9. Can regular maintenance help prevent OBDII code P1BCC from appearing in my Chevrolet hybrid/electric vehicle?

- Regular maintenance, such as checking the battery system and addressing any warning lights promptly, can help prevent issues that lead to this code.

10. Are there any recalls or technical service bulletins related to OBDII code P1BCC in Chevrolet hybrid/electric vehicles?

- It is recommended to check with Chevrolet dealerships or online resources for any recalls or technical service bulletins related to this specific OBDII code.