AutoCodes – Chevrolet – P1B2C Chevrolet

P1B2C Chevrolet Code - Hybrid/Electric Vehicle Battery 31 Circuit

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: P1B2C Chevrolet indicates Hybrid/Electric Vehicle Battery 31 Circuit.
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 988

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 P1B2C 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 P1B2C Chevrolet - Hybrid/Electric Vehicle Battery 31 Circuit - AutoCodes.com — P1B2C Chevrolet Code - Hybrid/Electric Vehicle Battery 31 Circuit

What does this mean?

What are the Possible Causes of the DTC P1B2C Chevrolet?

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

How to Fix the DTC P1B2C 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 P1B2C 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 P1B2C Chevrolet code?

Need more information on how to fix the P1B2C Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B2C 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 P1B2C Chevrolet Code

1. What are common symptoms of OBDII code P1B2C in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced battery performance, reduced fuel efficiency, and potential issues with the vehicle's hybrid/electric system.

2. What are some possible causes of OBDII code P1B2C in a Chevrolet hybrid/electric vehicle?

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

3. How can I diagnose OBDII code P1B2C in my Chevrolet hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to read the code, inspecting the battery circuit for damage, and checking the battery's health using specialized diagnostic equipment.

4. Can I still drive my Chevrolet hybrid/electric vehicle with OBDII code P1B2C 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 potentially cause safety issues.

5. How can I repair OBDII code P1B2C in my Chevrolet hybrid/electric vehicle?

- Repairing this code may involve replacing the hybrid/electric vehicle battery, repairing damaged wiring in the battery circuit, or recalibrating the battery management system.

6. Is it safe to attempt repairs for OBDII code P1B2C in my Chevrolet hybrid/electric vehicle myself?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to have repairs for this code performed by a qualified technician with experience in hybrid/electric vehicles.

7. How much does it typically cost to repair OBDII code P1B2C in a Chevrolet hybrid/electric vehicle?

- The cost of repairs for this code can vary depending on the extent of the damage and the specific components that need to be replaced, but it can range from a few hundred to a few thousand dollars.

8. Are there any preventive maintenance tips to avoid OBDII code P1B2C in a Chevrolet hybrid/electric vehicle?

- Regularly servicing the hybrid/electric vehicle battery, monitoring the battery's health, and addressing any warning signs promptly can help prevent issues that may trigger this code.

9. Can OBDII code P1B2C in a Chevrolet hybrid/electric vehicle be related to other codes or issues?

- This code may be related to other codes indicating problems with the hybrid/electric system, so it is important to perform a comprehensive diagnostic check to address all underlying issues.

10. How long does it typically take to repair OBDII code P1B2C in a Chevrolet hybrid/electric vehicle?

- The repair time can vary depending on the specific repairs needed, availability of parts, and the technician's expertise, but it may take anywhere from a few hours to a few days to complete the repairs.