AutoCodes – GMC – P1FC8 GMC

P1FC8 GMC Code - Hybrid/EV Battery Interface Control Module 10 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: P1FC8 GMC indicates Hybrid/EV Battery Interface Control Module 10 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 1,425

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 P1FC8 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 P1FC8 GMC - Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit - AutoCodes.com — P1FC8 GMC Code - Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit

What does this mean?

What are the Possible Causes of the DTC P1FC8 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 P1FC8 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 P1FC8 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 P1FC8 GMC code?

Need more information on how to fix the P1FC8 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FC8 GMC 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 P1FC8 GMC Code

1. What are the common symptoms of OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- Common symptoms include issues with the hybrid/EV battery system, such as poor performance, reduced fuel efficiency, and potential drivability issues.

2. What are the possible causes of OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- Possible causes can include a faulty Hybrid/EV Battery Interface Control Module, damaged wiring or connectors in the 10 5 V reference circuit, or issues with the hybrid battery itself.

3. How can I diagnose OBDII code P1FC8 in my GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- Diagnosis typically involves using a scan tool to read the code, inspecting the wiring and connectors in the 10 5 V reference circuit, and testing the Hybrid/EV Battery Interface Control Module for proper function.

4. Are there any repair tips for addressing OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- Repair tips may include checking for any loose or damaged wiring, ensuring proper connections in the circuit, and potentially replacing the Hybrid/EV Battery Interface Control Module if deemed faulty.

5. Can OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit be safely driven with?

- It is not recommended to drive the vehicle with this code present, as it can affect the performance and efficiency of the hybrid/EV system. It is best to address the issue promptly.

6. Is it possible to reset OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- While resetting the code may temporarily clear the warning light, it is important to diagnose and repair the underlying issue causing the code to prevent further issues.

7. How much does it typically cost to repair OBDII code P1FC8 in a GMC related to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing components or repairing wiring, which can range from a few hundred to over a thousand dollars.

8. Are there any recalls or technical service bulletins related to OBDII code P1FC8 in a GMC with regards to the Hybrid/EV Battery Interface Control Module 10 5 V Reference Circuit?

- It is recommended to check with a GMC dealership or visit the NHTSA website to see if there are any relevant recalls or technical service bulletins related to this specific OBDII code.