AutoCodes – Chevrolet – P1E4C Chevrolet

P1E4C Chevrolet Code - Hybrid/Electric Vehicle Battery 33 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: P1E4C Chevrolet indicates Hybrid/Electric Vehicle Battery 33 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 916

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 P1E4C Chevrolet 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 P1E4C Chevrolet - Hybrid/Electric Vehicle Battery 33 Circuit - AutoCodes.com — P1E4C Chevrolet Code - Hybrid/Electric Vehicle Battery 33 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E4C Chevrolet?

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

How to Fix the DTC P1E4C Chevrolet?

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 P1E4C Chevrolet 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 P1E4C Chevrolet Code

1. What are the common symptoms of OBDII code P1E4C in a Chevrolet Hybrid/Electric Vehicle?

- Common symptoms may include a decrease in fuel efficiency, reduced power, and warning lights on the dashboard related to the hybrid/electric system.

2. What can cause the OBDII code P1E4C to appear in a Chevrolet Hybrid/Electric Vehicle?

- The code P1E4C typically indicates a fault in the Hybrid/Electric Vehicle Battery 33 Circuit, which can be caused by issues such as damaged wiring, faulty battery components, or a malfunctioning control module.

3. How can I diagnose the OBDII code P1E4C in my Chevrolet Hybrid/Electric Vehicle?

- Diagnosis of code P1E4C usually requires advanced diagnostic tools that can communicate with the hybrid/electric system. It is recommended to consult a professional mechanic or dealership for an accurate diagnosis.

4. What are some possible repair options for OBDII code P1E4C in a Chevrolet Hybrid/Electric Vehicle?

- Repairs for code P1E4C may involve repairing or replacing damaged wiring, addressing faulty battery components, resetting the control module, or updating software as needed.

5. Can I continue driving my Chevrolet Hybrid/Electric Vehicle with the OBDII code P1E4C present?

- It is not recommended to continue driving with the code P1E4C present, as it may lead to further damage to the hybrid/electric system. It is best to have the issue diagnosed and repaired promptly.

6. How much does it typically cost to repair the OBDII code P1E4C in a Chevrolet Hybrid/Electric Vehicle?

- The cost of repairing code P1E4C can vary depending on the specific issue causing the fault. Costs may include diagnostic fees, parts replacement, and labor, so it is advisable to obtain estimates from qualified professionals.

7. Are there any routine maintenance steps I can take to prevent OBDII code P1E4C in my Chevrolet Hybrid/Electric Vehicle?

- Regularly inspecting the hybrid/electric system components, ensuring proper charging habits, and following the manufacturer's maintenance schedule can help prevent issues that may trigger code P1E4C.

8. Can a DIY enthusiast repair OBDII code P1E4C in a Chevrolet Hybrid/Electric Vehicle?

- Due to the complexity of hybrid/electric systems, repairing code P1E4C is best left to trained professionals with the necessary tools and expertise to safely diagnose and repair the issue.

9. How urgent is it to address the OBDII code P1E4C in a Chevrolet Hybrid/Electric Vehicle?

- It is important to address code P1E4C promptly to prevent potential damage to the hybrid/electric system and ensure the vehicle operates safely and efficiently.

10. Is the OBDII code P1E4C specific to Chevrolet vehicles, or can it appear in other hybrid/electric vehicles?

- The code P1E4C is specific to Chevrolet vehicles and may have different definitions or meanings in other hybrid/electric vehicle models. It is important to consult the specific vehicle's diagnostic codes for accurate information.