AutoCodes – Saturn – P1FFF Saturn

P1FFF Saturn Code - System Isolation/Coolant Level Sensor Fault - Hybrid/EV Battery Charging System Disabled

Quick Answer

This diagnostic is an indicator that hybrid/EV battery pack charging is disabled because the hybrid/EV powertrain control module 2 detected one of the following conditions: - A loss of isolation between the hybrid/EV battery pack high voltage circuits and vehicle chassis - A low coolant condition of the hybrid/EV battery pack coolant system - A fault in the hybrid/EV battery pack coolant level sensor/circuit Common causes include Faulty System Isolation/Coolant Level Sensor, System Isolation/Coolant Level Sensor harness is open or shorted, System Isolation/Coolant Level Sensor 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: P1FFF Saturn indicates System Isolation/Coolant Level Sensor Fault - Hybrid/EV Battery Charging System Disabled.
Common causes: Common causes include Faulty System Isolation/Coolant Level Sensor, System Isolation/Coolant Level Sensor harness is open or shorted, System Isolation/Coolant Level Sensor 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 1,064

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 P1FFF Saturn Description

OBDII Code P1FFF Saturn - System Isolation/Coolant Level Sensor Fault - Hybrid/EV Battery Charging System Disabled - AutoCodes.com — P1FFF Saturn Code - System Isolation/Coolant Level Sensor Fault - Hybrid/EV Battery Charging System Disabled

What does this mean?

What are the Possible Causes of the DTC P1FFF Saturn?

Faulty System Isolation/Coolant Level Sensor
System Isolation/Coolant Level Sensor harness is open or shorted
System Isolation/Coolant Level Sensor circuit poor electrical connection

How to Fix the DTC P1FFF 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 P1FFF 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.

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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 P1FFF Saturn Code

What are the common symptoms of OBDII code P1FFF in a Saturn hybrid/EV?

- The common symptoms include the hybrid/EV battery charging system being disabled, warning lights illuminated on the dashboard, and potential issues with the coolant level sensor.

What are the possible causes of OBDII code P1FFF in a Saturn hybrid/EV?

- The possible causes include a faulty coolant level sensor, system isolation faults, issues with the hybrid/EV battery charging system, or wiring/connectivity problems.

How can I diagnose the System Isolation/Coolant Level Sensor Fault in a Saturn hybrid/EV?

- To diagnose this fault, it is recommended to perform a thorough inspection of the coolant level sensor, check for any signs of damage or corrosion, and use a diagnostic scanner to retrieve specific fault codes.

What are some repair tips for fixing the System Isolation/Coolant Level Sensor Fault in a Saturn hybrid/EV?

- Repair tips may include replacing the faulty coolant level sensor, addressing any system isolation faults, checking and repairing any damaged wiring or connectors, and clearing the fault code with a diagnostic scanner.

Is it safe to continue driving with the OBDII code P1FFF in a Saturn hybrid/EV?

- It is not recommended to continue driving with this fault, as it can lead to further issues with the hybrid/EV battery charging system and potentially cause more severe problems down the line.

How important is it to address the System Isolation/Coolant Level Sensor Fault promptly in a Saturn hybrid/EV?

- It is important to address this fault promptly to ensure the proper functioning of the hybrid/EV system and prevent any potential damage or safety hazards associated with the disabled battery charging system.

Can I reset the OBDII code P1FFF in a Saturn hybrid/EV on my own?

- It is possible to reset the fault code using a diagnostic scanner, but it is recommended to address the underlying issue causing the code before resetting it to prevent it from reoccurring.

What are the long-term effects of ignoring the OBDII code P1FFF in a Saturn hybrid/EV?

- Ignoring this fault can lead to continued disabled battery charging system, potential damage to the hybrid/EV components, decreased fuel efficiency, and possible safety risks while driving the vehicle.