AutoCodes – GMC – P1BE4 GMC

P1BE4 GMC Code - Hybrid/Electric Vehicle Battery 86 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: P1BE4 GMC indicates Hybrid/Electric Vehicle Battery 86 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 962

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BE4 GMC 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 P1BE4 GMC - Hybrid/Electric Vehicle Battery 86 Circuit Performance - AutoCodes.com — P1BE4 GMC Code - Hybrid/Electric Vehicle Battery 86 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BE4 GMC?

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

How to Fix the DTC P1BE4 GMC?

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 P1BE4 GMC 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 P1BE4 GMC Code

1. What are the common symptoms of OBDII code P1BE4 GMC related to Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- Common symptoms include reduced electric vehicle range, difficulty starting the vehicle, and issues with charging the battery.

2. What are the possible causes of OBDII code P1BE4 GMC indicating Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- The code may be triggered by a faulty battery management system, damaged battery cells, wiring issues, or a malfunctioning battery control module.

3. How can I diagnose OBDII code P1BE4 GMC for Hybrid/Electric Vehicle Battery 86 Circuit Performance at home?

- You can start by checking the battery connections, inspecting the wiring harness for any visible damage, and using a multimeter to test the voltage levels of the battery cells.

4. Is it safe to continue driving with OBDII code P1BE4 GMC related to Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- It is not recommended to continue driving with this code as it can lead to further damage to the battery system and potentially cause safety hazards.

5. Can I reset OBDII code P1BE4 GMC for Hybrid/Electric Vehicle Battery 86 Circuit Performance by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is important to diagnose and address the underlying issue to prevent the code from reappearing.

6. How much does it typically cost to repair OBDII code P1BE4 GMC for Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from a few hundred to a few thousand dollars, especially if battery components need to be replaced.

7. Are there any maintenance tips to prevent OBDII code P1BE4 GMC related to Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- Regularly inspecting and maintaining the battery system, following the manufacturer's recommended service intervals, and avoiding overcharging the battery can help prevent issues that trigger this code.

8. Can a DIY enthusiast with basic automotive skills repair OBDII code P1BE4 GMC for Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- While some basic troubleshooting steps can be performed at home, diagnosing and repairing the underlying cause of this code may require specialized tools and expertise, making it advisable to consult a professional technician.

9. Will OBDII code P1BE4 GMC for Hybrid/Electric Vehicle Battery 86 Circuit Performance affect the overall performance of the vehicle?

- Yes, this code can impact the performance and efficiency of the vehicle, especially if it is related to the battery system, which is crucial for powering the electric components of the vehicle.

10. How long does it typically take to repair OBDII code P1BE4 GMC related to Hybrid/Electric Vehicle Battery 86 Circuit Performance?

- The repair time can vary depending on the complexity of the issue causing the code, but it may take anywhere from a few hours to a couple of days to diagnose and fix the problem thoroughly.