AutoCodes – Saturn – P1F0C Saturn

P1F0C Saturn Code - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage

Quick Answer

The AC compressor function is to provide refrigerant flow in the AC refrigerant loop to help cool down the cabin, help dehumidify the air in a defrost mode and help maintain the battery temperature. Common causes include Faulty A/C Compressor, A/C Compressor harness is open or shorted, A/C Compressor 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: P1F0C Saturn indicates Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage.
Common causes: Common causes include Faulty A/C Compressor, A/C Compressor harness is open or shorted, A/C Compressor 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 854

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 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1F0C Saturn Description

The AC compressor function is to provide refrigerant flow in the AC refrigerant loop to help cool down the cabin, help dehumidify the air in a defrost mode and help maintain the battery temperature. Rather than a more typical pulley, the A/C compressor uses a 3-phase alternating current, high voltage electric motor to operate. It has an on-board inverter that takes High Voltage direct current from the vehicle's High voltage battery and inverts it to alternating current for the motor. The AC compressor shall be activated when any of the three following events occur:
- The customer pushes the AC button
- The HVAC control, in AUTO mode, requests the electric AC compressor on to help in cooling the cabin or removing moisture in the defrost mode
- The High Voltage Battery Thermal System requests the AC compressor on to help maintain the battery temperature
The Hybrid/EV Powertrain Control Module 2 uses values from the A/C refrigerant pressure transducers, A/C refrigerant thermistor, duct temperature sensors, ambient air temperature sensor, passenger compartment temperature sensor, evaporator temperature sensor, battery cell temperature sensors, battery coolant temperature sensors and battery coolant pumps to determine the speed at which the compressor will operate. This message is sent from the Hybrid/EV Powertrain Control Module 2 to the A/C compressor control module via serial data message.
AC Compressor has a motor start up procedure that can take a variable length of time to run to bring the motor up to requested speed. Length of time is dependent on external conditions such as under-bonnet temperature and high side pressure. In hotter conditions, the motor start up time will be longer. The A/C compressor control module monitors an internal parameter known as the DC link current which is based off DC input current. It is not possible to measure this parameter externally.

OBDII Code P1F0C Saturn - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage - AutoCodes.com — P1F0C Saturn Code - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1F0C Saturn?

Faulty A/C Compressor
A/C Compressor harness is open or shorted
A/C Compressor circuit poor electrical connection

How to Fix the DTC P1F0C 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 P1F0C 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 P1F0C Saturn Code

1. What are the common symptoms of OBDII code P1F0C in a Saturn related to the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage?

- Common symptoms include weak or ineffective air conditioning performance, the A/C compressor not engaging, and possible illumination of the Check Engine Light.

2. What can cause the OBDII code P1F0C to trigger in a Saturn's Electric A/C system?

- This code can be triggered by issues such as a faulty electric A/C compressor control module, damaged wiring in the motor feedback circuit, or a low voltage condition in the system.

3. How can I diagnose the root cause of OBDII code P1F0C in my Saturn's A/C system?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the wiring and connectors in the A/C compressor motor feedback circuit, and testing the electric A/C compressor control module for proper operation.

4. Is it safe to continue driving my Saturn with the OBDII code P1F0C related to the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage?

- It is not recommended to drive the vehicle with this code as it can lead to poor A/C performance, potential further damage to the A/C system, and reduced overall driving comfort.

5. Can a DIY enthusiast repair OBDII code P1F0C in a Saturn, or is it best left to a professional mechanic?

- While some experienced DIYers may be able to address this issue, it is recommended to seek the expertise of a qualified mechanic due to the complexity of diagnosing and repairing electrical issues in the A/C system.

6. How much can I expect to pay to repair OBDII code P1F0C in my Saturn's Electric A/C system?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic testing. It is advisable to obtain quotes from reputable repair shops.

7. Are there any preventive maintenance steps I can take to avoid triggering OBDII code P1F0C in my Saturn?

- Regularly servicing the A/C system, ensuring proper electrical connections, and addressing any unusual A/C performance issues promptly can help prevent the occurrence of this code.

8. Will resetting the Check Engine Light clear OBDII code P1F0C related to the Electric A/C Compressor Control Module in my Saturn?

- Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear after driving cycles.

9. Can a low battery voltage in my Saturn cause OBDII code P1F0C to trigger specifically in the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit?

- Yes, a low battery voltage can contribute to triggering this code as it can affect the overall operation of the A/C system, including the electric compressor control module's functionality.

10. How urgent is it to address OBDII code P1F0C in a Saturn related to the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit Low Voltage?

- While the vehicle may still be operable with this code present, it is advisable to address the issue promptly to prevent further damage to the A/C system and ensure optimal cooling performance, especially in hot weather.