AutoCodes – GMC – P01F0 2014 GMC Sierra

P01F0 2014 GMC Sierra 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 2014 GMC Sierra 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.

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Code Popularity 313

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 Jun 09, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P01F0 2014 GMC Sierra 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 2014 GMC Sierra - Coolant Temperature Dropped Below Diagnostic Monitoring Temperature - AutoCodes.com — P01F0 2014 GMC Sierra Code - Coolant Temperature Dropped Below Diagnostic Monitoring Temperature

What does this mean?

What are the Possible Causes of the DTC P01F0 2014 GMC Sierra?

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 2014 GMC Sierra?

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 2014 GMC Sierra 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 2014 GMC Sierra code?

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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.