AutoCodes – GMC – P1E5B GMC

P1E5B GMC Code - Hybrid/Electric Vehicle Battery 48 Circuit

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: P1E5B GMC indicates Hybrid/Electric Vehicle Battery 48 Circuit.
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 731

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 P1E5B 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 P1E5B GMC - Hybrid/Electric Vehicle Battery 48 Circuit - AutoCodes.com — P1E5B GMC Code - Hybrid/Electric Vehicle Battery 48 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E5B GMC?

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

How to Fix the DTC P1E5B 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 P1E5B 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 P1E5B GMC Code

1. What are the common symptoms of OBDII code P1E5B in a GMC Hybrid/Electric Vehicle?

- Common symptoms include reduced vehicle performance, decreased fuel efficiency, and potential warning lights on the dashboard related to the hybrid/electric system.

2. What are the possible causes of OBDII code P1E5B indicating an issue with the Hybrid/Electric Vehicle Battery 48 Circuit?

- The code P1E5B can be triggered by issues such as a faulty battery cell, damaged battery wiring, connector problems, or a malfunctioning battery management system.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 48 Circuit issue related to code P1E5B in my GMC vehicle?

- Diagnosis typically involves using a specialized OBDII scanner to retrieve the specific fault code, inspecting the battery connections and wiring, and testing the voltage levels of the battery cells.

4. Is it safe to continue driving my GMC Hybrid/Electric Vehicle with OBDII code P1E5B present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and potentially result in complete system failure.

5. Can I repair the Hybrid/Electric Vehicle Battery 48 Circuit issue causing OBDII code P1E5B myself?

- Repairing the issue related to code P1E5B often requires specialized knowledge and tools. It is recommended to seek assistance from a qualified technician or dealership familiar with hybrid/electric vehicle systems.

6. Are there any precautionary measures I can take to prevent OBDII code P1E5B from occurring in my GMC Hybrid/Electric Vehicle?

- Regularly scheduled maintenance, such as battery health checks and system inspections, can help prevent issues leading to code P1E5B. Following manufacturer guidelines for battery care is also essential.

7. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 48 Circuit issue associated with OBDII code P1E5B?

- The cost of repair can vary depending on the specific problem causing the code, the extent of the damage, and the labor rates of the repair facility. It is advisable to obtain estimates from multiple sources.

8. Can resetting the OBDII system clear code P1E5B related to the Hybrid/Electric Vehicle Battery 48 Circuit?

- While clearing the code may temporarily remove the warning light, it will not fix the underlying issue causing the code. It is crucial to address the root problem to prevent future occurrences.

9. Will replacing the hybrid/electric vehicle battery resolve OBDII code P1E5B in my GMC vehicle?

- Replacing the battery may sometimes be necessary to address code P1E5B, but it is essential to diagnose the specific issue first to avoid unnecessary expenses. Consulting with a professional is recommended.

10. Is OBDII code P1E5B specific to GMC vehicles, or can it occur in other hybrid/electric vehicle brands?

- While the specific code P1E5B may be manufacturer-specific to GMC vehicles, similar issues related to the Hybrid/Electric Vehicle Battery 48 Circuit can occur in other hybrid/electric vehicle brands, triggering their respective fault codes.