AutoCodes – GMC – P1F0D GMC

P1F0D GMC Code - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High 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: P1F0D GMC indicates Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High 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 733

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 P1F0D GMC 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 P1F0D GMC - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High Voltage - AutoCodes.com — P1F0D GMC Code - Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1F0D GMC?

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

How to Fix the DTC P1F0D GMC?

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 P1F0D GMC 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 P1F0D GMC Code

1. What are the common symptoms of OBDII code P1F0D GMC?

- Common symptoms of this code may include the A/C compressor not working properly, a lack of cold air from the vents, and the illumination of the check engine light.

2. What can cause the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High Voltage code to appear?

- Possible causes of this code include a faulty A/C compressor control module, issues with the A/C compressor motor, wiring or connector problems, or electrical system malfunctions.

3. How can I diagnose the root cause of OBDII code P1F0D GMC?

- Diagnosis typically involves conducting a thorough inspection of the A/C compressor system, checking the wiring and connectors for any damage or loose connections, and using a scan tool to retrieve specific data related to the circuit.

4. Can I still drive my vehicle with the P1F0D GMC code present?

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

5. What are some repair tips for resolving the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High Voltage issue?

- Repair tips may include replacing the A/C compressor control module, repairing or replacing damaged wiring or connectors, checking and repairing the A/C compressor motor, and resetting the fault code after repairs are completed.

6. Is it possible to reset the OBDII code P1F0D GMC without making any repairs?

- While clearing the code may temporarily turn off the check engine light, it is important to address the underlying issue causing the code to prevent further problems with the A/C system.

7. How much does it typically cost to repair OBDII code P1F0D GMC?

- Repair costs can vary depending on the specific cause of the issue and the labor rates of the repair shop. It is recommended to consult with a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast fix the Electric A/C Compressor Control Module A/C Compressor Motor Current Feedback Circuit High Voltage problem?

- While some DIY enthusiasts may have the skills to diagnose and repair this issue, it is recommended to have a professional mechanic with experience in A/C systems handle the repair due to the complexity of the components involved.

9. Will OBDII code P1F0D GMC cause any damage to other vehicle systems if left untreated?

- Leaving this code untreated can potentially lead to further damage to the A/C compressor system, affecting the overall cooling performance of the vehicle and potentially causing other related issues.

10. How can I prevent OBDII code P1F0D GMC from recurring in the future?

- Regular maintenance of the A/C system, timely repairs of any related issues, and addressing electrical problems promptly can help prevent the recurrence of this code in the future.