AutoCodes – GMC – P1E57 GMC

P1E57 GMC Code - Hybrid/Electric Vehicle Battery 44 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: P1E57 GMC indicates Hybrid/Electric Vehicle Battery 44 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 768

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 P1E57 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 P1E57 GMC - Hybrid/Electric Vehicle Battery 44 Circuit - AutoCodes.com — P1E57 GMC Code - Hybrid/Electric Vehicle Battery 44 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E57 GMC?

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

How to Fix the DTC P1E57 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 P1E57 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 P1E57 GMC Code

1. What are the common symptoms of OBDII code P1E57 in a GMC hybrid/electric vehicle?

- Common symptoms include reduced hybrid/electric propulsion performance, decreased fuel efficiency, and possible warning lights on the dashboard.

2. What could cause the OBDII code P1E57 to appear in a GMC hybrid/electric vehicle?

- This code usually indicates a fault in the Hybrid/Electric Vehicle Battery 44 Circuit, which could be caused by a damaged battery cell, faulty wiring, or a malfunctioning battery management system.

3. How can I diagnose the issue related to the Hybrid/Electric Vehicle Battery 44 Circuit in my GMC hybrid/electric vehicle?

- It's recommended to perform a thorough inspection of the high voltage battery pack, check for any visible damage to the wiring, and use a diagnostic scan tool to pinpoint the exact location of the fault.

4. Can I continue driving my GMC hybrid/electric vehicle with the P1E57 trouble code present?

- It's not advisable to continue driving the vehicle with this code active, as it can lead to further damage to the hybrid/electric components and potentially compromise safety.

5. What are some repair tips for addressing the OBDII code P1E57 in a GMC hybrid/electric vehicle?

- Repair tips may include repairing or replacing damaged battery cells, repairing any broken wiring, resetting the battery management system, and clearing the trouble code using a diagnostic tool.

6. Is it safe to attempt repairs on the Hybrid/Electric Vehicle Battery 44 Circuit myself?

- Due to the high voltage nature of the hybrid/electric vehicle components, it's recommended to seek professional help or consult the vehicle's service manual before attempting any repairs to avoid safety hazards.

7. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 44 Circuit issue in a GMC hybrid/electric vehicle?

- Repair costs can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. It's best to consult a certified technician for an accurate estimate.

8. Can a faulty Hybrid/Electric Vehicle Battery 44 Circuit affect other systems in my GMC hybrid/electric vehicle?

- Yes, a fault in the Hybrid/Electric Vehicle Battery 44 Circuit can impact the overall performance of the vehicle, including the hybrid/electric propulsion system and potentially other electrical systems.

9. Are there any preventive maintenance measures I can take to avoid encountering the P1E57 trouble code in my GMC hybrid/electric vehicle?

- Regularly inspecting the battery pack, monitoring the hybrid/electric system performance, and following the manufacturer's recommended maintenance schedule can help prevent issues related to the Hybrid/Electric Vehicle Battery 44 Circuit.

10. How urgent is it to address the OBDII code P1E57 in a GMC hybrid/electric vehicle?

- It's important to address this code promptly to prevent further damage to the hybrid/electric components and ensure the safe operation of the vehicle. Immediate attention from a qualified technician is recommended.