P1F0C Chevrolet 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 Chevrolet 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.
Code P1F0C Chevrolet Description
- 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.
What are the Possible Causes of the DTC P1F0C Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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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Frequently Asked Questions about P1F0C Chevrolet Code
1. What does the OBDII code P1F0C mean for a Chevrolet vehicle?
The P1F0C code indicates a low voltage issue in the A/C compressor motor current feedback circuit, which is monitored by the Electric A/C Compressor Control Module.
2. What are the common symptoms of the P1F0C code?
Symptoms may include reduced or no air conditioning performance, the A/C compressor not engaging, and the illumination of the check engine light.
3. What causes the P1F0C code to appear?
Common causes include a faulty A/C compressor motor, a damaged feedback circuit, wiring or connector issues, or a malfunctioning Electric A/C Compressor Control Module.
4. Can I still drive my vehicle with the P1F0C code?
While the vehicle may still be drivable, the air conditioning system may not function properly, and ignoring the issue could lead to further damage to the A/C system.
5. How is the P1F0C code diagnosed?
A mechanic will typically use a scan tool to confirm the code, inspect the A/C compressor motor and wiring, and test the feedback circuit for proper voltage and continuity.
6. What are some possible repairs for the P1F0C code?
Repairs may include replacing the A/C compressor motor, repairing or replacing damaged wiring or connectors, or replacing the Electric A/C Compressor Control Module if necessary.
7. Can a weak battery cause the P1F0C code?
Yes, a weak or failing battery could cause low voltage issues in the A/C compressor motor circuit, potentially triggering the P1F0C code.
8. How much does it cost to fix the P1F0C code?
The cost can vary widely depending on the exact cause, but repairs may range from $100 for simple wiring fixes to over $1,000 for a new A/C compressor.
9. Will resetting the code fix the P1F0C issue?
Resetting the code may temporarily clear the check engine light, but it will not resolve the underlying issue, and the code is likely to return.
10. Can I fix the P1F0C code myself?
If you are experienced with automotive electrical systems, you may be able to repair damaged wiring or connectors. However, diagnosing and replacing complex components like the A/C compressor may require professional expertise.
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