AutoCodes – Chevrolet – P1BC5 Chevrolet

P1BC5 Chevrolet Code - Hybrid/Electric Vehicle Battery 75 Circuit High 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: P1BC5 Chevrolet indicates Hybrid/Electric Vehicle Battery 75 Circuit High 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.

Save to My Repairs My Repairs

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

Code Popularity 902

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 P1BC5 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 P1BC5 Chevrolet - Hybrid/Electric Vehicle Battery 75 Circuit High Voltage - AutoCodes.com — P1BC5 Chevrolet Code - Hybrid/Electric Vehicle Battery 75 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BC5 Chevrolet?

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

How to Fix the DTC P1BC5 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 P1BC5 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 P1BC5 Chevrolet code?

Need more information on how to fix the P1BC5 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BC5 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 P1BC5 Chevrolet Code

1. What does the OBDII code P1BC5 mean for a Chevrolet vehicle?

The code P1BC5 indicates a problem with the Hybrid/Electric Vehicle Battery 75 Circuit, specifically related to high voltage.

2. What are the common symptoms of a P1BC5 code in a Chevrolet?

Symptoms may include an illuminated check engine light, reduced power mode, decreased battery performance, or issues with electric motor operation.

3. What causes the P1BC5 code to appear in a Chevrolet vehicle?

Common causes include a malfunctioning battery control module, damaged wiring or connectors in the circuit, or an issue with the high-voltage battery itself.

4. Can I continue driving with a P1BC5 code on my Chevrolet?

Itâ€™s not recommended to drive for long periods, as the code may indicate a serious issue with the high-voltage battery system, which could lead to further damage or reduced vehicle performance.

5. How is the P1BC5 code diagnosed in a Chevrolet?

A technician will inspect the wiring and connectors, test the battery control module, and use a scan tool to monitor the high-voltage battery circuit for irregularities.

6. What repairs are commonly needed for a Chevrolet with a P1BC5 code?

Repairs may include fixing or replacing damaged wiring, repairing connectors, recalibrating or replacing the battery control module, or addressing issues with the high-voltage battery.

7. Is the P1BC5 code specific to certain Chevrolet models?

This code is typically associated with Chevrolet hybrid or electric vehicles equipped with high-voltage battery systems, such as the Volt or Bolt.

8. How much does it cost to fix a P1BC5 code on a Chevrolet?

The cost varies depending on the underlying issue, ranging from a few hundred dollars for wiring repairs to several thousand dollars if the high-voltage battery needs replacement.

9. Can a low 12-volt battery cause the P1BC5 code in a Chevrolet?

While unlikely, a weak 12-volt battery could affect the control modules and indirectly trigger the code, so itâ€™s worth checking the 12-volt system as part of the diagnosis.

10. How can I prevent the P1BC5 code from recurring in my Chevrolet?

Regular maintenance, ensuring secure connections in the high-voltage system, and addressing warning signs like reduced battery efficiency can help prevent the issue.