AutoCodes – Cadillac – P1BE6 Cadillac

P1BE6 Cadillac Code - Hybrid/Electric Vehicle Battery 86 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: P1BE6 Cadillac indicates Hybrid/Electric Vehicle Battery 86 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 952

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1BE6 Cadillac 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 P1BE6 Cadillac - Hybrid/Electric Vehicle Battery 86 Circuit High Voltage - AutoCodes.com — P1BE6 Cadillac Code - Hybrid/Electric Vehicle Battery 86 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BE6 Cadillac?

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

How to Fix the DTC P1BE6 Cadillac?

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 P1BE6 Cadillac 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 P1BE6 Cadillac code?

Need more information on how to fix the P1BE6 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BE6 Cadillac 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 P1BE6 Cadillac Code

1. What does the OBDII code P1BE6 mean on a Cadillac?

P1BE6 indicates a problem with the Hybrid/Electric Vehicle Battery 86 circuit, specifically a high voltage condition detected by the vehicle's control module.

2. What are common symptoms of the P1BE6 code?

Symptoms may include an illuminated check engine light, reduced hybrid/electric vehicle performance, limited EV mode functionality, or the vehicle failing to start.

3. What causes the P1BE6 code to appear in a Cadillac?

The code can be caused by faulty wiring or connectors in the battery circuit, a defective battery module, issues with the battery control module, or abnormal voltage readings.

4. Can the P1BE6 code cause drivability issues?

Yes, it can result in reduced performance, limited power output, or the vehicle switching to a backup mode to protect the battery system.

5. How can I diagnose the P1BE6 code on my Cadillac?

Start by inspecting the wiring and connectors around the battery system for damage or corrosion, then use a scan tool to monitor voltage readings and check for related codes.

6. Is the P1BE6 code specific to Cadillacs?

While it is commonly found in Cadillac hybrid and electric models, it can also appear in other GM vehicles with similar hybrid/electric systems.

7. Can I drive my Cadillac with the P1BE6 code?

Driving with this code is not recommended, as it could lead to further damage to the battery system or leave the vehicle inoperable.

8. What repairs are typically required to fix the P1BE6 code?

Repairs may include replacing damaged wiring, repairing or replacing the battery module, or reprogramming the battery control module if necessary.

9. How much does it cost to fix the P1BE6 code?

Repair costs can vary widely depending on the issue, but battery module replacement or significant electrical repairs may cost several hundred to a few thousand dollars.

10. Can a faulty battery control module trigger the P1BE6 code?

Yes, if the battery control module sends incorrect voltage data or fails to communicate properly, it can trigger this code.