AutoCodes – Generic – P1FCE

P1FCE Code - Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit

Quick Answer

To maintain a similar state of charge on the cell groups, the hybrid/EV powertrain control module 2 looks at the cell group voltages and determines which cell groups need energy removed in order to maintain the battery groups at a similar state of charge. 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: P1FCE indicates Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit.
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 859

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 P1FCE Description

To maintain a similar state of charge on the cell groups, the hybrid/EV powertrain control module 2 looks at the cell group voltages and determines which cell groups need energy removed in order to maintain the battery groups at a similar state of charge. This is known as cell balancing. There is a transistor switched resistor wired in parallel with the cell group internal to the hybrid/EV battery interface control module portion of the battery energy control module. The hybrid/EV powertrain control module 2 sends a command to the hybrid/EV battery energy control module to begin cell balancing.

OBDII Code P1FCE - Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit - AutoCodes.com — P1FCE Code - Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit

What does this mean?

What are the Possible Causes of the DTC P1FCE?

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 P1FCE?

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 P1FCE 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 P1FCE code?

Need more information on how to fix the P1FCE code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FCE code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1FCE Buick — Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit
P1FCE Cadillac — Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit
P1FCE Chevrolet — Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit
P1FCE GMC — Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit
P1FCE Saturn — Hybrid/EV Battery Interface Control Module 10 Cell Balancing Circuit

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 P1FCE Code

What does the OBDII code P1FCE indicate?

The OBDII code P1FCE indicates an issue with the Hybrid/EV Battery Interface Control Module, specifically related to the 10 cell balancing circuit, which is responsible for managing the voltage levels across the battery cells.

What are common symptoms of the P1FCE code?

Common symptoms include warning lights on the dashboard, reduced vehicle performance, decreased fuel efficiency, and potential issues with battery charging or discharging.

What could cause the P1FCE code to trigger?

Causes may include faulty battery cells, issues with the battery management system, wiring problems, or a malfunctioning Hybrid/EV Battery Interface Control Module.

How can I diagnose the P1FCE code?

To diagnose the P1FCE code, use an OBDII scanner to confirm the code, check the battery voltage levels, inspect the wiring and connectors for damage, and test the battery management system for faults.

What repairs are recommended for the P1FCE code?

Repairs may include replacing damaged battery cells, fixing wiring issues, reprogramming or replacing the Battery Interface Control Module, or addressing any faults in the battery management system.

Can driving with the P1FCE code be harmful?

Yes, driving with the P1FCE code can lead to further battery damage, reduced performance, and potential safety risks due to inadequate battery management.

Is it safe to reset the P1FCE code without repairs?

Resetting the P1FCE code without addressing the underlying issue is not recommended, as it may lead to recurring problems and further damage to the vehicle's hybrid/electric system.

How much does it typically cost to repair issues related to the P1FCE code?

Repair costs can vary widely, generally ranging from a few hundred to several thousand dollars, depending on whether the issue involves simple wiring repairs or extensive battery replacements.

Can I fix the P1FCE code myself?

If you have experience with automotive repairs and hybrid systems, you may be able to diagnose and fix the issue. However, due to the complexity and safety concerns, professional assistance is often recommended.