AutoCodes – Cadillac – P1FFE Cadillac

P1FFE Cadillac Code - Hybrid/EV Battery Pack Coolant Level Low

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: P1FFE Cadillac indicates Hybrid/EV Battery Pack Coolant Level Low.
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.

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Code Popularity 978

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 P1FFE Cadillac 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 P1FFE Cadillac - Hybrid/EV Battery Pack Coolant Level Low - AutoCodes.com — P1FFE Cadillac Code - Hybrid/EV Battery Pack Coolant Level Low

What does this mean?

What are the Possible Causes of the DTC P1FFE Cadillac?

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 P1FFE Cadillac?

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 P1FFE Cadillac 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 P1FFE Cadillac code?

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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 P1FFE Cadillac Code

1. What are the common symptoms of OBDII code P1FFE Cadillac (Hybrid/EV Battery Pack Coolant Level Low)?

The common symptoms include a warning light on the dashboard, reduced hybrid/EV performance, and potential cooling system issues.

2. What can cause the OBDII code P1FFE Cadillac to appear?

The code P1FFE Cadillac is often triggered by a low coolant level in the hybrid/EV battery pack, which can be caused by leaks, improper maintenance, or a malfunction in the cooling system.

3. How can I check the coolant level in the hybrid/EV battery pack?

To check the coolant level, refer to the vehicle's manual for specific instructions. In general, you may need to locate the coolant reservoir in the hybrid/EV system and visually inspect the level.

4. What should I do if the OBDII code P1FFE Cadillac appears?

If the code appears, it is important to address the issue promptly to prevent further damage to the hybrid/EV battery pack. Begin by checking the coolant level and inspecting for any leaks or visible damage.

5. Can I continue driving with the OBDII code P1FFE Cadillac illuminated?

It is not recommended to continue driving with the code P1FFE Cadillac illuminated, as it indicates a potential issue with the hybrid/EV battery pack cooling system. Continued driving without addressing the problem could lead to further damage.

6. Are there any DIY repair tips for fixing the OBDII code P1FFE Cadillac?

While checking the coolant level and looking for obvious leaks is a good start, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper maintenance of the hybrid/EV system.

7. How much does it typically cost to repair the OBDII code P1FFE Cadillac?

The cost of repairing the OBDII code P1FFE Cadillac can vary depending on the root cause of the issue and the extent of repairs needed. It is best to consult with a professional mechanic for an accurate estimate.

8. Is the OBDII code P1FFE Cadillac a common issue in Cadillac hybrid/EV vehicles?

The OBDII code P1FFE Cadillac (Hybrid/EV Battery Pack Coolant Level Low) can be a common issue in certain Cadillac hybrid/EV models, especially as the vehicles age and components wear out.

9. Can I prevent the OBDII code P1FFE Cadillac from appearing in the future?

Regular maintenance, including checking the coolant level in the hybrid/EV battery pack and ensuring the cooling system is functioning properly, can help prevent the code P1FFE Cadillac from appearing in the future.

10. Is it safe to drive my Cadillac with the OBDII code P1FFE Cadillac if I cannot immediately address the issue?

If you cannot immediately address the issue causing the code P1FFE Cadillac to appear, it is best to limit driving as much as possible to avoid potential damage to the hybrid/EV battery pack.