AutoCodes – GMC – P1E4D GMC

P1E4D GMC Code - Hybrid/Electric Vehicle Battery 34 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: P1E4D GMC indicates Hybrid/Electric Vehicle Battery 34 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 886

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E4D 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 P1E4D GMC - Hybrid/Electric Vehicle Battery 34 Circuit - AutoCodes.com — P1E4D GMC Code - Hybrid/Electric Vehicle Battery 34 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E4D GMC?

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

How to Fix the DTC P1E4D 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 P1E4D 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 P1E4D GMC Code

1. What are the common symptoms of OBDII code P1E4D GMC related to the Hybrid/Electric Vehicle Battery 34 Circuit?

- Common symptoms include reduced electric vehicle range, poor battery performance, and potential issues with the vehicle's hybrid system.

2. What are the possible causes of OBDII code P1E4D GMC indicating an issue with the Hybrid/Electric Vehicle Battery 34 Circuit?

- Possible causes may include a faulty battery pack, damaged battery circuitry, loose connections, or issues with the battery management system.

3. How can I diagnose the OBDII code P1E4D GMC in relation to the Hybrid/Electric Vehicle Battery 34 Circuit?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific code, inspecting the battery components, checking for loose connections, and testing the battery health.

4. Is it safe to continue driving with OBDII code P1E4D GMC related to the Hybrid/Electric Vehicle Battery 34 Circuit?

- It is not recommended to continue driving with this code as it can lead to further damage to the hybrid/electric vehicle system and potential safety hazards.

5. What are some repair tips for addressing OBDII code P1E4D GMC associated with the Hybrid/Electric Vehicle Battery 34 Circuit?

- Repair tips may include checking and repairing any damaged wiring, replacing the faulty battery components, ensuring proper connections, and resetting the system after repairs.

6. Can I reset the OBDII code P1E4D GMC related to the Hybrid/Electric Vehicle Battery 34 Circuit on my own?

- You can attempt to reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes, but it is important to address the underlying issue causing the code to prevent it from recurring.

7. How do I prevent OBDII code P1E4D GMC from reappearing in the future after repairing the Hybrid/Electric Vehicle Battery 34 Circuit issue?

- Regular maintenance of the hybrid/electric vehicle battery system, ensuring proper charging procedures, and addressing any warning signs promptly can help prevent the code from reappearing.

8. Are there any recalls or service bulletins related to OBDII code P1E4D GMC and the Hybrid/Electric Vehicle Battery 34 Circuit?

- It is recommended to check with the vehicle manufacturer or authorized dealerships for any recalls or service bulletins related to this specific OBDII code and battery circuit issue.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P1E4D GMC associated with the Hybrid/Electric Vehicle Battery 34 Circuit?

- While some basic repairs like checking connections or replacing components may be possible for DIY enthusiasts, complex issues with the battery system may require specialized knowledge and equipment.

10. How crucial is it to address OBDII code P1E4D GMC concerning the Hybrid/Electric Vehicle Battery 34 Circuit promptly?

- It is crucial to address this code promptly to prevent further damage to the vehicle's battery system, ensure optimal performance, and maintain the safety of the hybrid/electric vehicle.