AutoCodesGMC – P01F0 GMC

P01F0 GMC Code - Coolant Temperature Dropped Below Diagnostic Monitoring Temperature

Quick Answer

The Engine Coolant Temperature (ECT) Sensor is a 2-wire negative temperature coefficient thermistor. Common causes include Faulty Thermostat, Faulty Engine Coolant Temperature (ECT) Sensor, Engine Coolant Temperature Sensor harness is open or shorted. 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
P01F0 GMC indicates Coolant Temperature Dropped Below Diagnostic Monitoring Temperature.
Common causes
Common causes include Faulty Thermostat, Faulty Engine Coolant Temperature (ECT) Sensor, Engine Coolant Temperature Sensor harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,666
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 09, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P01F0 GMC Description

The Engine Coolant Temperature (ECT) Sensor is a 2-wire negative temperature coefficient thermistor. As the temperature of the fluid increases, the resistance of the sensor decreases, varying the voltage on the signal circuit. The Engine Control Module (ECM) uses this diagnostic to determine that the Engine Coolant Temperature (ECT) does not fall below a minimum calibrated temperature after the vehicle has reached normal operating condition. The Diagnostic Trouble Code (DTC) will be set if the Engine Coolant Temperature is less than 71°C (160°F) for greater than 30 s.
OBDII Code P01F0 GMC - Coolant Temperature Dropped Below Diagnostic Monitoring Temperature - AutoCodes.com
P01F0 GMC Code - Coolant Temperature Dropped Below Diagnostic Monitoring Temperature

What are the Possible Causes of the DTC P01F0 GMC?

  • Faulty Thermostat
  • Faulty Engine Coolant Temperature (ECT) Sensor
  • Engine Coolant Temperature Sensor harness is open or shorted
  • Engine Coolant Temperature Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P01F0 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 P01F0 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.

Need more information about the P01F0 GMC code?

Need more information on how to fix the P01F0 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P01F0 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

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 P01F0 GMC Code

1. What are the common symptoms of OBDII code P01F0 in a GMC vehicle?

- Common symptoms include the engine running rough, poor fuel economy, and the Check Engine light illuminating on the dashboard.

2. What could cause the OBDII code P01F0 to trigger in a GMC vehicle?

- This code usually triggers when the engine coolant temperature drops below the diagnostic monitoring temperature set by the vehicle's ECM.

3. How can I diagnose the issue related to OBDII code P01F0 in my GMC?

- A diagnostic scan tool can help read the code and provide data on the coolant temperature sensor, engine temperature, and other related parameters.

4. What are some possible repair tips for addressing OBDII code P01F0 in a GMC?

- Check the coolant level, inspect the coolant temperature sensor for proper operation, and ensure the thermostat is functioning correctly.

5. Can driving with the OBDII code P01F0 present cause damage to my GMC vehicle?

- Driving with this code may lead to poor engine performance and potential overheating issues if the coolant temperature is not monitored properly.

6. Is it safe to continue driving my GMC with the Check Engine light on due to code P01F0?

- It is not recommended to drive with the Check Engine light on, as it indicates a potential issue that may worsen over time if not addressed promptly.

7. How much does it typically cost to repair OBDII code P01F0 in a GMC vehicle?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a simple sensor replacement to more extensive cooling system repairs.

8. Can I reset the OBDII code P01F0 in my GMC by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution, as the underlying issue causing the code will still need to be addressed.

9. Are there any DIY steps I can take to troubleshoot OBDII code P01F0 in my GMC before taking it to a mechanic?

- You can start by checking the coolant level, inspecting the coolant temperature sensor, and ensuring the thermostat is opening and closing properly.

10. Will OBDII code P01F0 in a GMC reset on its own after the issue is resolved?

- After the underlying issue causing the code is fixed, you may need to use a diagnostic scan tool to clear the code from the vehicle's ECM memory.

Discuss the causes and fixes for P01F0 GMC OBDII Code

Code P01F0 GMC comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play