AutoCodes – GMC – P1E6A GMC

P1E6A GMC Code - Hybrid/Electric Vehicle Battery 63 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: P1E6A GMC indicates Hybrid/Electric Vehicle Battery 63 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 889

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 P1E6A 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 P1E6A GMC - Hybrid/Electric Vehicle Battery 63 Circuit - AutoCodes.com — P1E6A GMC Code - Hybrid/Electric Vehicle Battery 63 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E6A GMC?

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

How to Fix the DTC P1E6A 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 P1E6A 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 P1E6A GMC Code

1. What are common symptoms of OBDII code P1E6A in a GMC hybrid/electric vehicle?

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

2. What does the OBDII code P1E6A GMC indicate about the Hybrid/Electric Vehicle Battery 63 Circuit?

This code specifically points to a fault in the Hybrid/Electric Vehicle Battery 63 Circuit, which is a crucial component in the vehicle's hybrid/electric system.

3. What are possible causes of the P1E6A code in a GMC hybrid/electric vehicle?

Potential causes of this code include a faulty battery 63 circuit, damaged wiring or connectors, issues with the hybrid/electric battery, or a malfunctioning control module.

4. How can I diagnose the source of the P1E6A code in my GMC hybrid/electric vehicle?

Diagnosing the issue may require a comprehensive scan tool to read the code, inspecting the battery 63 circuit components, checking for loose connections, and testing the hybrid/electric battery's health.

5. Can I drive my GMC hybrid/electric vehicle with the P1E6A code present?

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

6. How can I repair the Hybrid/Electric Vehicle Battery 63 Circuit related to the P1E6A code?

Repairing this issue may involve replacing damaged wiring or connectors, repairing the circuit, replacing the hybrid/electric battery if necessary, or reprogramming the control module.

7. What precautions should I take when working on the Hybrid/Electric Vehicle Battery 63 Circuit?

It is important to disconnect the hybrid/electric battery properly, wear appropriate safety gear, follow manufacturer guidelines, and consider seeking professional help if unsure about the repair process.

8. Is it possible to reset the OBDII code P1E6A in a GMC hybrid/electric vehicle without fixing the underlying issue?

While you can clear the code using a scan tool, it is not recommended to do so without addressing the root cause, as the problem will likely reoccur and potentially worsen over time.

9. How often should I have the Hybrid/Electric Vehicle Battery 63 Circuit inspected in my GMC hybrid/electric vehicle?

Regular maintenance and inspections of the hybrid/electric system, including the battery 63 circuit, are crucial to prevent issues like the P1E6A code. It is recommended to follow the manufacturer's maintenance schedule.

10. Can a DIY enthusiast with automotive knowledge repair the Hybrid/Electric Vehicle Battery 63 Circuit related to the P1E6A code?

While some repairs may be possible for DIY enthusiasts, working on the hybrid/electric system, especially the battery circuit, can be complex and dangerous. It is advisable to consult with a professional or specialized technician for such repairs.