AutoCodes – GMC – P1BE7 GMC

P1BE7 GMC Code - Hybrid/Electric Vehicle Battery 87 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: P1BE7 GMC indicates Hybrid/Electric Vehicle Battery 87 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 966

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 P1BE7 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 P1BE7 GMC - Hybrid/Electric Vehicle Battery 87 Circuit Performance - AutoCodes.com — P1BE7 GMC Code - Hybrid/Electric Vehicle Battery 87 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BE7 GMC?

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

How to Fix the DTC P1BE7 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 P1BE7 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 P1BE7 GMC Code

1. What are the common symptoms of OBDII code P1BE7 GMC related to Hybrid/Electric Vehicle Battery 87 Circuit Performance?

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

2. What are the possible causes of OBDII code P1BE7 GMC indicating Hybrid/Electric Vehicle Battery 87 Circuit Performance?

- Possible causes may include a faulty battery pack, issues with battery cell balancing, damaged wiring or connectors, or problems with the battery management system.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 87 Circuit Performance issue related to OBDII code P1BE7 GMC?

- Diagnosis typically involves using a compatible diagnostic scanner to read the code, inspecting the battery pack and associated components, and conducting voltage tests to identify the root cause.

4. Is it safe to continue driving with OBDII code P1BE7 GMC triggered by Hybrid/Electric Vehicle Battery 87 Circuit Performance?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the hybrid system and potentially compromise the safety and performance of the vehicle.

5. How can I repair OBDII code P1BE7 GMC linked to Hybrid/Electric Vehicle Battery 87 Circuit Performance?

- Repairs may involve replacing the faulty battery pack, repairing damaged wiring or connectors, recalibrating the battery management system, or addressing any other specific issues identified during diagnosis.

6. Can I reset the OBDII code P1BE7 GMC myself after addressing the Hybrid/Electric Vehicle Battery 87 Circuit Performance problem?

- In most cases, the code can be cleared using a diagnostic scanner once the underlying issue has been resolved. However, it's important to ensure that the repair has been successful before clearing the code.

7. How often does the Hybrid/Electric Vehicle Battery 87 Circuit Performance issue occur in GMC vehicles?

- While this specific code may not be extremely common, issues related to hybrid or electric vehicle batteries can occur in GMC and other similar vehicles, especially as they age or if maintenance is neglected.

8. Are there any preventive maintenance tips to avoid triggering OBDII code P1BE7 GMC due to Hybrid/Electric Vehicle Battery 87 Circuit Performance?

- Regularly inspecting and maintaining the battery pack, following manufacturer-recommended service schedules, and addressing any warning signs promptly can help prevent such issues from arising.