AutoCodes – GMC – P1FED GMC

P1FED GMC Code - Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance

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: P1FED GMC indicates Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance.
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 756

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 P1FED 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 P1FED GMC - Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance - AutoCodes.com — P1FED GMC Code - Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P1FED 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 P1FED 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 P1FED 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.

Need more information about the P1FED GMC code?

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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 P1FED GMC Code

1. What are common symptoms of OBDII code P1FED in a GMC related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Common symptoms include poor hybrid system performance, reduced fuel efficiency, and potential drivability issues.

2. What are the possible causes of OBDII code P1FED in a GMC related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Possible causes include a faulty voltage sensor, wiring issues, a malfunctioning battery interface control module, or software glitches.

3. How can I diagnose the OBDII code P1FED in a GMC related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Diagnosis typically involves checking the voltage sensor, inspecting the wiring harness for damage, testing the battery interface control module, and using a diagnostic scanner to read data.

4. Can I still drive my GMC with OBDII code P1FED related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage and potential safety hazards.

5. How can I repair OBDII code P1FED in a GMC related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Repair options may include replacing the faulty voltage sensor, repairing any damaged wiring, reprogramming the battery interface control module, or seeking professional help for a comprehensive diagnosis and repair.

6. Is it safe to reset the OBDII code P1FED related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as the problem may persist and could potentially worsen over time.

7. How much does it typically cost to repair OBDII code P1FED in a GMC related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P1FED related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance?

- Some simple tasks, such as checking wiring connections, can be performed by a DIY enthusiast, but diagnosing and repairing more complex issues may require professional expertise and specialized tools.

9. How often does OBDII code P1FED related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance occur in GMC vehicles?

- While not extremely common, this code can occur in GMC hybrid or electric vehicles and should be addressed promptly to prevent further complications.

10. What steps can I take to prevent OBDII code P1FED related to Hybrid/EV Battery Interface Control Module 5 Voltage Sensor Performance in my GMC?

- Regular maintenance, timely software updates, and addressing any electrical issues promptly can help prevent the occurrence of this code in your GMC vehicle.