AutoCodes – Chevrolet – P1F0B Chevrolet

P1F0B Chevrolet Code - A/C Compressor Motor Start-Up Current Performance

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: P1F0B Chevrolet indicates A/C Compressor Motor Start-Up Current Performance.
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 974

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 P1F0B Chevrolet 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 P1F0B Chevrolet - A/C Compressor Motor Start-Up Current Performance - AutoCodes.com — P1F0B Chevrolet Code - A/C Compressor Motor Start-Up Current Performance

What does this mean?

What are the Possible Causes of the DTC P1F0B 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 P1F0B 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 P1F0B 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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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 P1F0B Chevrolet Code

1. What are the common symptoms of OBDII code P1F0B in a Chevrolet related to A/C Compressor Motor Start-Up Current Performance?

- Common symptoms include weak or delayed air conditioning cooling performance, A/C compressor not engaging properly, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P1F0B in a Chevrolet related to A/C Compressor Motor Start-Up Current Performance?

- Possible causes include a faulty A/C compressor motor, wiring issues, poor electrical connections, or a malfunctioning A/C compressor clutch.

3. How can I diagnose the OBDII code P1F0B in a Chevrolet related to A/C Compressor Motor Start-Up Current Performance?

- Diagnosis involves using a scan tool to read the code, checking the A/C compressor motor and related components for proper function, and inspecting the wiring and connections for any issues.

4. Can I still drive my Chevrolet with OBDII code P1F0B related to A/C Compressor Motor Start-Up Current Performance?

- It is not recommended to drive the vehicle with this code present, as it can lead to poor A/C performance and potentially cause further damage to the A/C system components.

5. What repairs are typically needed to fix OBDII code P1F0B in a Chevrolet related to A/C Compressor Motor Start-Up Current Performance?

- Repairs may involve replacing the A/C compressor motor, repairing or replacing damaged wiring, ensuring proper electrical connections, or repairing/replacing the A/C compressor clutch.

6. How much does it cost to repair OBDII code P1F0B in a Chevrolet related to A/C Compressor Motor Start-Up Current Performance?

- Repair costs can vary depending on the specific issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can I reset the OBDII code P1F0B in my Chevrolet related to A/C Compressor Motor Start-Up Current Performance myself?

- You can attempt to clear the code with an OBDII scanner, but it is recommended to diagnose and address the underlying issue first to prevent the code from reoccurring.

8. Are there any preventive maintenance tips to avoid OBDII code P1F0B related to A/C Compressor Motor Start-Up Current Performance in my Chevrolet?

- Regularly servicing the A/C system, checking for proper refrigerant levels, and addressing any A/C performance issues promptly can help prevent this code from appearing.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P1F0B related to A/C Compressor Motor Start-Up Current Performance in a Chevrolet?

- Depending on the specific issue, some DIY repairs may be possible, such as checking and cleaning electrical connections. However, more complex repairs may require professional assistance.

10. How long does it typically take to repair OBDII code P1F0B related to A/C Compressor Motor Start-Up Current Performance in a Chevrolet?

- Repair times can vary based on the exact cause of the issue, but it may take several hours to a full day to diagnose and fix the problem, especially if component replacement is required.