AutoCodes – Generic – P1FFC

P1FFC Code - Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage

Quick Answer

The hybrid/EV battery pack coolant system has a level sensor. Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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: P1FFC indicates Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage.
Common causes: Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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 1,466

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 P1FFC Description

The hybrid/EV battery pack coolant system has a level sensor. The hybrid/EV battery pack coolant level sensor is attached to the coolant surge tank. The level sensor is a 2 state bi-metallic reed switch which changes state when the switch reed is exposed to magnetism. The level of the hybrid/EV battery pack coolant in the surge tank causes a magnet-equipped float to move towards and away from the sensor as coolant level decreases or increases. The hybrid/EV powertrain control module 2 supplies 5 V to the signal circuit and a ground for the low reference circuit. The hybrid/EV battery pack coolant level sensor resistance decreases when the battery coolant level in the surge tank gets low. The hybrid/EV powertrain control module 2 uses the hybrid/EV battery pack coolant level sensor to determine if the hybrid/EV battery pack coolant system is low on coolant.

OBDII Code P1FFC - Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage - AutoCodes.com — P1FFC Code - Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FFC?

Faulty Hybrid/EV Powertrain Control Module 2
Hybrid/EV Powertrain Control Module 2 harness is open or shorted
Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection

How to Fix the DTC P1FFC?

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 P1FFC 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 P1FFC code?

Need more information on how to fix the P1FFC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1FFC code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1FFC Buick — Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage
P1FFC Cadillac — Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage
P1FFC Chevrolet — Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage
P1FFC GMC — Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage
P1FFC Saturn — Hybrid/EV Battery Pack Coolant Level Sensor Circuit Low Voltage

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 P1FFC Code

1. What are the common symptoms of OBDII code P1FFC?

- Common symptoms include the illumination of the check engine light, issues with the hybrid/EV battery pack cooling system, and potential drivability issues.

2. What does the OBDII code P1FFC indicate?

- The code P1FFC indicates a low voltage condition in the coolant level sensor circuit within the hybrid/EV battery pack.

3. What are the possible causes of OBDII code P1FFC?

- Possible causes include a faulty coolant level sensor, damaged wiring or connectors in the sensor circuit, low coolant levels in the battery pack, or a malfunctioning hybrid/EV battery pack cooling system.

4. How can I diagnose the OBDII code P1FFC?

- Diagnosing the code typically involves using an OBDII scanner to retrieve the code, checking the coolant level in the battery pack, inspecting the sensor and its wiring for damage, and testing the sensor's voltage output.

5. Can I continue driving with OBDII code P1FFC illuminated?

- It is not recommended to continue driving with the code illuminated, as it can lead to further damage to the hybrid/EV battery pack cooling system and potentially affect the vehicle's performance.

6. What are the repair options for OBDII code P1FFC?

- Repair options may include replacing the faulty coolant level sensor, repairing damaged wiring or connectors, refilling coolant in the battery pack, or addressing any issues with the cooling system.

7. Are there any DIY tips for addressing OBDII code P1FFC?

- DIY tips may include visually inspecting the coolant level sensor and its wiring for obvious damage, ensuring the battery pack coolant is at the proper level, and clearing the code with an OBDII scanner to see if it returns.

8. How critical is it to address OBDII code P1FFC promptly?

- It is important to address the code promptly to prevent potential damage to the hybrid/EV battery pack and cooling system, as well as to ensure the vehicle operates optimally.

9. Can a low battery coolant level cause other issues in a hybrid or EV?

- Yes, a low battery coolant level can lead to overheating of the battery pack, reduced efficiency of the hybrid/EV system, and potential damage to the battery cells.

10. Is it safe to attempt repairs related to OBDII code P1FFC without professional assistance?

- While some DIY checks and simple repairs can be done, it is generally recommended to seek professional assistance for diagnosing and repairing issues related to the hybrid/EV battery pack and cooling system to ensure safety and proper functionality.