AutoCodes – GMC – P1E64 GMC

P1E64 GMC Code - Hybrid/Electric Vehicle Battery 57 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: P1E64 GMC indicates Hybrid/Electric Vehicle Battery 57 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 852

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 P1E64 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 P1E64 GMC - Hybrid/Electric Vehicle Battery 57 Circuit - AutoCodes.com — P1E64 GMC Code - Hybrid/Electric Vehicle Battery 57 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E64 GMC?

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

How to Fix the DTC P1E64 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 P1E64 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 P1E64 GMC Code

1. What are the common symptoms of OBDII code P1E64 GMC related to the Hybrid/Electric Vehicle Battery 57 Circuit?

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

2. What are the possible causes of OBDII code P1E64 GMC indicating an issue with the Hybrid/Electric Vehicle Battery 57 Circuit?

- Possible causes include a faulty battery pack, damaged wiring or connections, issues with the battery management system, or a malfunctioning battery temperature sensor.

3. How can I diagnose the OBDII code P1E64 GMC associated with the Hybrid/Electric Vehicle Battery 57 Circuit?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, conducting visual inspections of the battery components, and performing tests on the battery pack and related systems.

4. Are there any safety precautions to keep in mind when dealing with the Hybrid/Electric Vehicle Battery 57 Circuit issue?

- Yes, it is important to follow manufacturer guidelines and recommendations for handling high-voltage components, as working on hybrid/electric vehicle batteries can be dangerous. It is advisable to seek professional assistance if unsure.

5. What repair tips can help resolve OBDII code P1E64 GMC related to the Hybrid/Electric Vehicle Battery 57 Circuit?

- Repair tips may include checking and repairing any damaged wiring, replacing faulty battery components, resetting the battery management system, or recalibrating the battery temperature sensor.

6. Can I continue driving my vehicle with OBDII code P1E64 GMC related to the Hybrid/Electric Vehicle Battery 57 Circuit?

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

7. How much does it typically cost to repair OBDII code P1E64 GMC indicating a problem with the Hybrid/Electric Vehicle Battery 57 Circuit?

- Repair costs can vary depending on the specific cause of the issue, the extent of the damage, and whether any components need to be replaced. It is advisable to consult a professional for an accurate estimate.

8. Are there any preventative maintenance measures to avoid encountering OBDII code P1E64 GMC in the future?

- Regularly inspecting the battery system, following manufacturer-recommended maintenance schedules, and avoiding extreme temperature conditions can help prevent issues with the Hybrid/Electric Vehicle Battery 57 Circuit.

9. Can a DIY enthusiast with automotive knowledge attempt to repair OBDII code P1E64 GMC related to the Hybrid/Electric Vehicle Battery 57 Circuit?

- While some basic troubleshooting and repairs can be done by DIY enthusiasts, working on hybrid/electric vehicle systems, especially high-voltage components like batteries, requires specialized training and equipment. It is advisable to seek professional help.

10. Is it possible for OBDII code P1E64 GMC to reoccur after repairs have been made to the Hybrid/Electric Vehicle Battery 57 Circuit?

- If the root cause of the issue is not properly addressed during repairs, there is a possibility that the code may reoccur. It is essential to ensure that all related components are thoroughly inspected and repaired to prevent future occurrences.