AutoCodes – Chevrolet – P1B5C Chevrolet

P1B5C Chevrolet Code - Hybrid/Electric Vehicle Battery 40 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: P1B5C Chevrolet indicates Hybrid/Electric Vehicle Battery 40 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 1,006

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 P1B5C 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 P1B5C Chevrolet - Hybrid/Electric Vehicle Battery 40 Circuit High Voltage - AutoCodes.com — P1B5C Chevrolet Code - Hybrid/Electric Vehicle Battery 40 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B5C Chevrolet?

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

How to Fix the DTC P1B5C 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 P1B5C 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 P1B5C Chevrolet code?

Need more information on how to fix the P1B5C Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B5C 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 P1B5C Chevrolet Code

1. What are common symptoms of OBDII code P1B5C in a Chevrolet hybrid/electric vehicle?

- Common symptoms include reduced vehicle performance, decreased fuel efficiency, and potential issues with the high voltage battery system.

2. What could cause the OBDII code P1B5C to appear in a Chevrolet hybrid/electric vehicle?

- The code may be triggered by a fault in the Hybrid/Electric Vehicle Battery 40 Circuit High Voltage, such as a wiring issue, sensor malfunction, or a problem with the battery itself.

3. How serious is the OBDII code P1B5C in a Chevrolet hybrid/electric vehicle?

- This code indicates a high voltage circuit issue, which can be serious as it pertains to the vehicle's electrical system and battery performance. It should be addressed promptly to avoid further damage.

4. Can I continue driving my Chevrolet hybrid/electric vehicle with the OBDII code P1B5C present?

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

5. What are some DIY repair tips for addressing OBDII code P1B5C in a Chevrolet hybrid/electric vehicle?

- DIY repair is not recommended for this code, as it involves the high voltage battery system, which requires specialized knowledge and tools. It is best to seek professional assistance.

6. How much does it typically cost to repair OBDII code P1B5C in a Chevrolet hybrid/electric vehicle?

- The cost of repair can vary depending on the exact cause of the code and any parts that may need to be replaced. It is advisable to consult with a qualified technician for an accurate estimate.

7. How long does it take to fix OBDII code P1B5C in a Chevrolet hybrid/electric vehicle?

- The repair time can vary based on the complexity of the issue and the availability of parts. Some repairs may be completed within a few hours, while others may take longer.

8. Can a regular mechanic fix the OBDII code P1B5C in a Chevrolet hybrid/electric vehicle, or does it require a specialist?

- Due to the high voltage nature of the issue, it is recommended to seek out a mechanic or technician with experience in hybrid/electric vehicle systems to properly diagnose and repair the problem.

9. Are there any preventive measures I can take to avoid OBDII code P1B5C in my Chevrolet hybrid/electric vehicle?

- Regular maintenance of the high voltage battery system, including inspections and testing, can help prevent issues that may trigger this code. Following manufacturer guidelines is key.

10. Is the OBDII code P1B5C specific to Chevrolet vehicles, or can it occur in other hybrid/electric vehicles as well?

- While the specific code P1B5C may be Chevrolet-specific, similar high voltage circuit issues can occur in other hybrid/electric vehicles, requiring similar diagnostic and repair procedures.