AutoCodes – Saturn – P1FCE Saturn

P1FCE Saturn 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 Saturn 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 840

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC P1FCE Saturn?

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 Saturn?

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 Saturn 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 Saturn code?

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

Need Help with the Code?

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

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 Saturn Code

1. What does the OBDII code P1FCE mean on a Saturn?

P1FCE indicates an issue with the Hybrid/EV Battery Interface Control Module, specifically related to the 10-cell balancing circuit.

2. What are the common symptoms of P1FCE on a Saturn vehicle?

Symptoms may include a check engine light, reduced hybrid/EV battery performance, diminished fuel efficiency, or the vehicle entering limp mode.

3. What causes the P1FCE code to appear?

The most common causes include a malfunctioning cell balancing circuit, wiring issues, a faulty battery interface control module, or degraded battery cells.

4. Can I drive my Saturn with a P1FCE code?

Driving with a P1FCE code is not recommended as it may lead to further damage to the hybrid/EV battery or reduced vehicle performance.

5. How is the P1FCE code diagnosed?

A technician uses a scan tool to retrieve the code, inspects the battery control module, checks the wiring and connectors, and tests the battery cells for imbalances or faults.

6. What repairs are commonly needed for a P1FCE code?

Repairs may include replacing the battery interface control module, repairing or replacing damaged wiring, or balancing/replacing faulty battery cells.

7. How much does it cost to fix a P1FCE code on a Saturn?

Repair costs can vary widely, ranging from $200 for minor wiring repairs to over $1,000 if the battery interface control module or cells need replacement.

8. Can a P1FCE code be cleared without repairs?

While the code can be cleared temporarily, it will likely return unless the underlying issue is resolved.

9. How can I prevent the P1FCE code from occurring?

Regular maintenance of the hybrid/EV system, keeping the battery in optimal conditions, and addressing warning lights early can help prevent this code.

10. Is the P1FCE code specific to Saturn hybrid or EV models?

Yes, the P1FCE code is specific to Saturn models equipped with hybrid or electric vehicle systems that use a 10-cell battery interface control module.