AutoCodes – Chevrolet – P1BC0 Chevrolet

P1BC0 Chevrolet Code - Hybrid/Electric Vehicle Battery 74 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: P1BC0 Chevrolet indicates Hybrid/Electric Vehicle Battery 74 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 1,013

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 P1BC0 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 P1BC0 Chevrolet - Hybrid/Electric Vehicle Battery 74 Circuit Performance - AutoCodes.com — P1BC0 Chevrolet Code - Hybrid/Electric Vehicle Battery 74 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BC0 Chevrolet?

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

How to Fix the DTC P1BC0 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 P1BC0 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.

Need more information about the P1BC0 Chevrolet code?

Need more information on how to fix the P1BC0 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BC0 Chevrolet 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 P1BC0 Chevrolet Code

1. What are the common symptoms of OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

The common symptoms include reduced hybrid battery performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

Possible causes include issues with the hybrid/electric vehicle battery 74 circuit, faulty battery cells, damaged wiring, or a malfunctioning battery management system.

3. How can I diagnose the OBDII code P1BC0 in my Chevrolet Hybrid/Electric Vehicle?

Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the hybrid battery connections, checking for any visible damage to wiring, and testing the battery cells for proper function.

4. Can I still drive my Chevrolet Hybrid/Electric Vehicle with OBDII code P1BC0 present?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and reduce overall vehicle performance.

5. What are some repair tips for resolving OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

Repair tips may include checking and repairing any damaged wiring, replacing faulty battery cells, resetting the battery management system, or seeking professional assistance from a certified technician.

6. How urgent is it to address OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

It is important to address this code promptly to prevent potential damage to the hybrid/electric system and ensure optimal vehicle performance and fuel efficiency.

7. Can a DIY enthusiast fix OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

While some basic troubleshooting steps can be performed by a DIY enthusiast, complex repairs involving the hybrid battery system are best left to experienced technicians due to the high voltage nature of these systems.

8. What is the typical cost to repair OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle?

The repair cost can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services related to the hybrid/electric system.

9. How can I prevent OBDII code P1BC0 from recurring in my Chevrolet Hybrid/Electric Vehicle?

Regular maintenance of the hybrid/electric system, monitoring battery health, and addressing any warning signs promptly can help prevent the recurrence of this fault code.

10. Is it safe to clear the OBDII code P1BC0 in a Chevrolet Hybrid/Electric Vehicle without addressing the underlying issue?

Clearing the code without addressing the underlying problem can temporarily turn off the check engine light but will not fix the root cause of the issue, potentially leading to further complications down the line.