AutoCodes – Generic – P1FC6

P1FC6 Code - Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit

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: P1FC6 indicates Hybrid/EV Battery Interface Control Module 8 5 V Reference 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 747

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 P1FC6 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 P1FC6 - Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit - AutoCodes.com — P1FC6 Code - Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit

What does this mean?

What are the Possible Causes of the DTC P1FC6?

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 P1FC6?

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 P1FC6 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 P1FC6 code?

Need more information on how to fix the P1FC6 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FC6 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1FC6 Buick — Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit
P1FC6 Cadillac — Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit
P1FC6 Chevrolet — Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit
P1FC6 GMC — Hybrid/EV Battery Interface Control Module 8 5 V Reference 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 P1FC6 Code

What does the OBDII code P1FC6 indicate?

The OBDII code P1FC6 indicates a problem with the Hybrid/EV Battery Interface Control Module's 8.5 V reference circuit, which may affect the vehicle's hybrid or electric system performance.

What are common symptoms of the P1FC6 code?

Common symptoms include warning lights on the dashboard, decreased hybrid or electric vehicle performance, and possible issues with battery charging or discharging.

What could cause the P1FC6 code to trigger?

Causes may include a faulty Battery Interface Control Module, wiring issues or shorts in the reference circuit, or a malfunctioning battery management system.

How can I diagnose the P1FC6 code?

To diagnose the P1FC6 code, use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, and test the Battery Interface Control Module for proper operation.

What are some common repair solutions for the P1FC6 code?

Repair solutions may involve repairing or replacing damaged wiring, replacing the Battery Interface Control Module, or addressing any issues with the vehicle's battery management system.

Can driving with the P1FC6 code affect my vehicle?

Yes, driving with the P1FC6 code can lead to reduced performance, potential battery issues, and overall compromised vehicle efficiency.

Is it safe to drive a hybrid or electric vehicle with the P1FC6 code?

While it may be safe to drive in some situations, it is recommended to have the issue diagnosed and repaired as soon as possible to avoid further damage.

How much might it cost to fix the P1FC6 code?

Repair costs can vary widely, typically ranging from $100 to $1,000 depending on whether it involves simple wiring repairs or the replacement of the Battery Interface Control Module.

Should I reset the code after repairs?

Yes, after making repairs, you should clear the code using an OBDII scanner and perform a test drive to ensure the issue is resolved and the code does not return.