AutoCodes – GMC – P1BE2 GMC

P1BE2 GMC Code - Hybrid/Electric Vehicle Battery 85 Circuit Low 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: P1BE2 GMC indicates Hybrid/Electric Vehicle Battery 85 Circuit Low 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.

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Code Popularity 837

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 P1BE2 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 P1BE2 GMC - Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage - AutoCodes.com — P1BE2 GMC Code - Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BE2 GMC?

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

How to Fix the DTC P1BE2 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 P1BE2 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 P1BE2 GMC Code

1. What are common symptoms of OBDII code P1BE2 GMC related to the Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage?

- Common symptoms include decreased electric vehicle range, poor performance, and potential issues with starting the vehicle.

2. What can cause the Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage code P1BE2 in a GMC vehicle?

- Causes may include a faulty battery, issues with the battery management system, poor electrical connections, or a malfunctioning sensor.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage code P1BE2 in my GMC hybrid/electric vehicle?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault codes, checking the battery voltage levels, and inspecting the battery and related components for any visible damage or corrosion.

4. Are there any simple repairs I can try to fix the P1BE2 code related to low voltage in the hybrid/electric vehicle battery circuit?

- Basic repairs may include checking and tightening electrical connections, ensuring the battery terminals are clean and secure, and resetting the battery management system.

5. Should I attempt to clear the P1BE2 code related to low voltage in the hybrid/electric vehicle battery circuit on my own?

- Clearing the code may temporarily turn off the warning light, but it is important to address the underlying issue causing the low voltage condition to prevent potential damage to the battery or other components.

6. Can driving with the P1BE2 code triggered for low voltage in the hybrid/electric vehicle battery circuit cause further damage?

- Continuing to drive with this code present can potentially lead to decreased battery performance, reduced efficiency, and in severe cases, damage to the battery or electrical system.

7. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage issue triggering the P1BE2 code in a GMC vehicle?

- The cost of repair can vary depending on the specific cause of the low voltage condition, but it may range from a simple fix like tightening connections to more complex repairs involving battery replacement or system diagnostics.

8. Is it safe to drive my GMC hybrid/electric vehicle with the P1BE2 code indicating low voltage in the battery circuit?

- It is not recommended to drive the vehicle extensively with this code triggered, as it can affect the performance and efficiency of the vehicle. It is best to address the issue promptly.

9. Can extreme weather conditions impact the occurrence of the P1BE2 code related to low voltage in the hybrid/electric vehicle battery circuit?

- Yes, extreme temperatures can affect battery performance and voltage levels, potentially leading to the triggering of the P1BE2 code. It is important to monitor the battery in such conditions.

10. Are there any preventive measures I can take to avoid encountering the Hybrid/Electric Vehicle Battery 85 Circuit Low Voltage issue triggering the P1BE2 code in my GMC vehicle?

- Regularly checking the battery health, ensuring proper maintenance of the electrical system, and avoiding extreme temperature exposure can help prevent the occurrence of low voltage issues triggering this code.