AutoCodes – GMC – P1E6C GMC

P1E6C GMC Code - Hybrid/Electric Vehicle Battery 65 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: P1E6C GMC indicates Hybrid/Electric Vehicle Battery 65 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 986

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 P1E6C 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 P1E6C GMC - Hybrid/Electric Vehicle Battery 65 Circuit - AutoCodes.com — P1E6C GMC Code - Hybrid/Electric Vehicle Battery 65 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E6C GMC?

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

How to Fix the DTC P1E6C 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 P1E6C 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 P1E6C GMC Code

1. What are the common symptoms of OBDII code P1E6C in a GMC Hybrid/Electric Vehicle?

- Common symptoms include decreased fuel efficiency, reduced power, and potential issues with the vehicle's hybrid/electric system.

2. What can cause the OBDII code P1E6C to appear in a GMC Hybrid/Electric Vehicle?

- This code typically indicates a problem with the Hybrid/Electric Vehicle Battery 65 Circuit, which could be caused by a faulty battery cell, damaged wiring, or a malfunctioning battery management system.

3. How serious is the OBDII code P1E6C in a GMC Hybrid/Electric Vehicle?

- This code should be addressed promptly to prevent further damage to the vehicle's battery system and ensure optimal performance of the hybrid/electric components.

4. Can I continue driving my GMC Hybrid/Electric Vehicle with the OBDII code P1E6C present?

- It is not recommended to continue driving the vehicle with this code present, as it could lead to more severe issues and potential safety hazards.

5. How can I diagnose and repair the OBDII code P1E6C in my GMC Hybrid/Electric Vehicle?

- Diagnosing and repairing this code should be done by a qualified technician using specialized diagnostic tools to pinpoint the exact cause of the issue and then proceed with necessary repairs or replacements.

6. Are there any DIY tips for troubleshooting the OBDII code P1E6C in a GMC Hybrid/Electric Vehicle?

- DIY troubleshooting is not recommended for this code, as it involves complex hybrid/electric components that require specialized knowledge and equipment for proper diagnosis and repair.

7. How much does it typically cost to fix the OBDII code P1E6C in a GMC Hybrid/Electric Vehicle?

- The cost of fixing this code can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.

8. Can the OBDII code P1E6C be a recurring issue in a GMC Hybrid/Electric Vehicle?

- If the root cause of the code is not properly addressed, it may recur over time, leading to ongoing problems with the vehicle's hybrid/electric system.

9. How often should I have my GMC Hybrid/Electric Vehicle checked for potential issues related to the OBDII code P1E6C?

- Regular maintenance and inspections are key to detecting and addressing issues like this code early on, so it's advisable to follow the manufacturer's recommended service schedule.

10. Is it possible to prevent the OBDII code P1E6C from appearing in my GMC Hybrid/Electric Vehicle?

- While some issues may be unavoidable, staying proactive with maintenance, avoiding extreme driving conditions, and addressing any warning signs promptly can help reduce the likelihood of this code appearing.