AutoCodes – GMC – P1FE8 GMC

P1FE8 GMC Code - Hybrid/EV Battery Interface Control Module 10 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: P1FE8 GMC indicates Hybrid/EV Battery Interface Control Module 10 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 780

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 P1FE8 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 P1FE8 GMC - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit High Voltage - AutoCodes.com — P1FE8 GMC Code - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1FE8 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 P1FE8 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 P1FE8 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 P1FE8 GMC Code

1. What are the common symptoms of OBDII code P1FE8 in a GMC vehicle?

- Common symptoms include the Check Engine light illuminating, reduced hybrid/EV system performance, and potential issues with the battery interface control module.

2. What can cause the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit High Voltage error code in a GMC vehicle?

- The code P1FE8 can be triggered by a faulty voltage sensor, damaged wiring, a malfunctioning battery interface control module, or issues with the hybrid/EV battery system.

3. How serious is the P1FE8 code in a GMC hybrid or electric vehicle?

- The P1FE8 code should be addressed promptly to prevent further damage to the hybrid/EV battery system and ensure the vehicle's optimal performance.

4. Can driving with the P1FE8 code present cause harm to the vehicle?

- Continued driving with the P1FE8 code can potentially lead to reduced fuel efficiency, performance issues, and further damage to the hybrid/EV battery components.

5. How can I diagnose the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit High Voltage issue in my GMC vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific error code, inspecting the voltage sensor and wiring, and testing the battery interface control module.

6. What are some DIY repair tips for addressing the P1FE8 code in a GMC hybrid or electric vehicle?

- DIY repair tips include checking and repairing any damaged wiring, ensuring proper connections to the voltage sensor, and potentially replacing the battery interface control module if needed.

7. Is it recommended to reset the OBDII code P1FE8 after making repairs in a GMC vehicle?

- Yes, it is recommended to reset the code after addressing the underlying issue to clear the Check Engine light and ensure the repairs were successful.

8. Can a professional mechanic help diagnose and repair the P1FE8 code in a GMC hybrid or electric vehicle?

- Yes, a qualified mechanic with experience in hybrid and electric vehicles can provide thorough diagnostics and perform the necessary repairs to resolve the P1FE8 code.

9. Are there any recalls or technical service bulletins related to the P1FE8 code in GMC vehicles?

- It is recommended to check with a GMC dealership or the manufacturer's website for any recalls or technical service bulletins related to the P1FE8 code in specific vehicle models.

10. How can I prevent the occurrence of the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Circuit High Voltage code in my GMC vehicle?

- Regular maintenance of the hybrid/EV system, including checking the battery components and monitoring system performance, can help prevent issues leading to the P1FE8 code.