AutoCodes – GMC – P1FE4 GMC

P1FE4 GMC Code - Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit High Voltage

Quick Answer

The hybrid battery contains 192 individual cells. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection. 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: P1FE4 GMC indicates Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection.
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 753

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 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1FE4 GMC Description

The hybrid battery contains 192 individual cells. Two cells are welded together in parallel and called a cell group. There are a total of 96 cell groups in the hybrid battery 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 cell groups are joined to form 3 distinct sections. The first 24 battery cell groups make up battery section 1. This section is adjacent to the cowl and contains battery cell groups 73 through 96. The next 28 battery cell groups make up battery section 2. This section is located behind section 1 and contains battery cell groups 45 through 72. The transverse battery section is section number 3 and it contains the remaining 44 battery cell groups 1 through 44. The battery sections also contain two temperature sensors, with one sensor located at each end of the section.
The battery energy control module monitors the voltage of the 96 battery cell groups. The voltage sense lines are attached to each individual cell group, and these sense lines terminate at a connector located on the top surface of the battery section. A voltage sense harness joins this connector to the battery energy control module.
The battery energy control module contains internal interface control modules that monitor specific cell groups.
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 the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1FE4 GMC - Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE4 GMC Code - Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE4 GMC?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P1FE4 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 P1FE4 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 P1FE4 GMC Code

1. What are the common symptoms of OBDII code P1FE4 in a GMC related to the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit High Voltage issue?

- Common symptoms include the check engine light illuminating, decreased fuel efficiency, and potential drivability issues such as hesitation or stalling.

2. What are the possible causes of OBDII code P1FE4 indicating a High Voltage condition in the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit of a GMC?

- Causes may include a faulty voltage sensor, issues with the battery interface control module, damaged wiring, or a malfunction in the hybrid/EV battery system.

3. How can I diagnose and repair OBDII code P1FE4 in my GMC if it indicates a High Voltage problem with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit?

- Diagnosis typically involves checking the voltage sensor, inspecting related wiring for damage, and testing the battery interface control module. Repair may involve replacing a faulty sensor, repairing damaged wiring, or addressing issues with the control module.

4. Is it safe to continue driving my GMC if OBDII code P1FE4 is triggered due to a High Voltage issue in the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit?

- It is recommended to address the issue promptly to prevent potential damage to the hybrid/EV system. Continuing to drive with the problem unresolved could lead to further complications and potential safety hazards.

5. Can a DIY enthusiast with automotive knowledge fix OBDII code P1FE4 related to the High Voltage problem in the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit of a GMC?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, addressing complex issues with the hybrid/EV system may require specialized tools and expertise. It is advisable to consult a professional technician for proper diagnosis and repair.

6. Are there any preventive maintenance tips to avoid encountering OBDII code P1FE4 in a GMC due to High Voltage issues with the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit?

- Regularly inspecting the hybrid/EV system components, following manufacturer-recommended maintenance schedules, and addressing any warning signs promptly can help prevent issues leading to OBDII code P1FE4.

7. How long does it typically take to diagnose and repair OBDII code P1FE4 related to the High Voltage problem in the Hybrid/EV Battery Interface Control Module 6 Voltage Sensor Circuit of a GMC?

- The time required for diagnosis and repair can vary depending on the specific cause of the issue. It is recommended to consult a professional technician for an accurate assessment of the duration needed to address the problem effectively.