AutoCodes – GMC – P1E54 GMC

P1E54 GMC Code - Hybrid/Electric Vehicle Battery 41 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: P1E54 GMC indicates Hybrid/Electric Vehicle Battery 41 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 723

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 P1E54 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 P1E54 GMC - Hybrid/Electric Vehicle Battery 41 Circuit - AutoCodes.com — P1E54 GMC Code - Hybrid/Electric Vehicle Battery 41 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E54 GMC?

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

How to Fix the DTC P1E54 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 P1E54 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 P1E54 GMC Code

1. What are common symptoms of OBDII code P1E54 GMC related to the Hybrid/Electric Vehicle Battery 41 Circuit?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and potential issues with battery charging.

2. What can cause the OBDII code P1E54 GMC to trigger for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Possible causes include a faulty battery module, damaged wiring, poor connections, or issues with the battery management system.

3. How can I diagnose the OBDII code P1E54 GMC for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the battery components, testing the wiring, and checking the battery voltage levels.

4. Is it safe to continue driving with the OBDII code P1E54 GMC related to the Hybrid/Electric Vehicle Battery 41 Circuit?

- It is not recommended to continue driving with this code active, as it can lead to further damage to the hybrid/electric vehicle system. It is best to address the issue promptly.

5. Can I repair the OBDII code P1E54 GMC myself for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Repairing this code may require advanced knowledge and specialized tools, so it is recommended to seek assistance from a qualified mechanic or dealership experienced with hybrid/electric vehicles.

6. How much does it typically cost to repair the OBDII code P1E54 GMC for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Repair costs can vary depending on the specific issue causing the code, but it is advisable to budget for potential expenses related to battery module replacement, wiring repairs, or system reprogramming.

7. Are there any preventive maintenance tips to avoid triggering the OBDII code P1E54 GMC for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Regularly inspecting the hybrid/electric vehicle battery system, monitoring battery health, and following manufacturer-recommended maintenance schedules can help prevent issues that may trigger this code.

8. How long does it take to repair the OBDII code P1E54 GMC for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Repair times can vary based on the complexity of the issue, availability of parts, and the mechanic's experience. It is advisable to consult with the technician performing the repair for a more accurate estimate.

9. Can a low or dead hybrid/electric vehicle battery cause the OBDII code P1E54 GMC to appear for the Hybrid/Electric Vehicle Battery 41 Circuit?

- Yes, a low or failed battery can be a contributing factor to triggering this code, as it can impact the overall performance and health of the hybrid/electric vehicle system.

10. How can I reset the OBDII code P1E54 GMC for the Hybrid/Electric Vehicle Battery 41 Circuit after making repairs?

- After addressing the underlying issue, the code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.