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P0117 2020 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Low

Quick Answer

The P0117 diagnostic trouble code (DTC) for a 2020 Ford F150 indicates a problem with the Engine Coolant Temperature (ECT) Sensor 1 Circuit being too low. Common causes include Faulty ECT sensor, Damaged or corroded wiring connecting the sensor to the ECM, Loose or disconnected wiring. 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
P0117 2020 Ford F150 indicates Engine Coolant Temperature Sensor 1 Circuit Low.
Common causes
Common causes include Faulty ECT sensor, Damaged or corroded wiring connecting the sensor to the ECM, Loose or disconnected wiring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0117 2020 Ford F150 Description

The P0117 diagnostic trouble code (DTC) for a 2020 Ford F150 indicates a problem with the Engine Coolant Temperature (ECT) Sensor 1 Circuit being too low. The ECT sensor is a crucial component that monitors the temperature of the engine coolant. This information is vital for the engine control module (ECM) to adjust fuel delivery and ignition timing to ensure optimal performance and efficiency. When the ECT sensor circuit reports a lower than expected temperature, it can lead to a variety of issues that affect the vehicle's performance and overall operation.

OBDII Code P0117 2020 Ford F150 - Engine Coolant Temperature Sensor 1 Circuit Low
P0117 2020 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Low

Common Causes of P0117 2020 Ford F150

  1. Faulty ECT sensor.
  2. Damaged or corroded wiring connecting the sensor to the ECM.
  3. Loose or disconnected wiring.
  4. Faulty ECM.
  5. Coolant leakage affecting sensor readings.

Symptoms of P0117 2020 Ford F150

  1. Check engine light illuminated on the dashboard.
  2. Poor fuel economy.
  3. Rough idling or stalling.
  4. Engine overheating.
  5. Inaccurate temperature gauge readings.

How to Fix P0117 2020 Ford F150

  1. Begin by locating the ECT sensor on the engine. It is typically located near the thermostat housing or on the cylinder head.
  2. Inspect the wiring harness connected to the ECT sensor for any damage, corrosion, or loose connections. Repair or replace any damaged wiring.
  3. Test the ECT sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  4. Clear the DTC using an OBD-II scanner and monitor the vehicle's operation to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to identify any underlying issues with the ECM or other components.

Cost to Fix P0117 2020 Ford F150

The typical repair costs for addressing a P0117 code on a 2020 Ford F150 can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive prices.

What does this mean?

Tech Notes for P0117 2020 Ford F150

Start by checking for coolant leaks, and if there are no leaks, the thermostat might be stuck closed and need replacement. If the problem persists, change the Engine Coolant Temperature (ECT) sensor.

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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 P0117 2020 Ford F150 Code

1. What are the common symptoms of OBDII code P0117 in a 2020 Ford F150?

The common symptoms of OBDII code P0117 in a 2020 Ford F150 include engine overheating, poor fuel economy, rough idling, and difficulty starting the vehicle.

2. What does the OBDII code P0117 on a 2020 Ford F150 indicate?

OBDII code P0117 on a 2020 Ford F150 indicates an issue with the Engine Coolant Temperature Sensor 1 Circuit. It specifically points to a low voltage condition in the sensor circuit.

3. What are the possible causes of the Engine Coolant Temperature Sensor 1 Circuit Low error in a 2020 Ford F150?

Possible causes of the Engine Coolant Temperature Sensor 1 Circuit Low error in a 2020 Ford F150 include a faulty coolant temperature sensor, damaged wiring or connectors, low coolant level, or a malfunctioning engine control module (ECM).

4. How can I diagnose the OBDII code P0117 on my 2020 Ford F150?

To diagnose OBDII code P0117 on your 2020 Ford F150, you can use an OBDII scanner to read the code and inspect the coolant temperature sensor, wiring, and connections for any visible damage or corrosion.

5. Can I still drive my 2020 Ford F150 with the P0117 code?

It is not recommended to drive your 2020 Ford F150 with the P0117 code for an extended period, as it can lead to engine overheating and other potential issues. It's best to address the problem promptly.

6. How can I repair the Engine Coolant Temperature Sensor 1 Circuit Low issue on my 2020 Ford F150?

Repairing the Engine Coolant Temperature Sensor 1 Circuit Low issue on your 2020 Ford F150 may involve replacing the coolant temperature sensor, repairing damaged wiring or connectors, ensuring proper coolant levels, or resetting the ECM.

7. Is it possible to reset the OBDII code P0117 on a 2020 Ford F150 without fixing the underlying issue?

While you can clear the OBDII code P0117 on your 2020 Ford F150 using an OBDII scanner, the code is likely to return if the underlying issue with the Engine Coolant Temperature Sensor 1 Circuit is not addressed.

8. What are the potential risks of ignoring the P0117 code on a 2020 Ford F150?

Ignoring the P0117 code on your 2020 Ford F150 can lead to inaccurate temperature readings, engine overheating, reduced fuel efficiency, and potential damage to engine components over time.

9. Can a DIY enthusiast fix the Engine Coolant Temperature Sensor 1 Circuit Low error on a 2020 Ford F150?

Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to replace the coolant temperature sensor or repair wiring issues causing the P0117 code on a 2020 Ford F150.

10. How much does it typically cost to repair the Engine Coolant Temperature Sensor 1 Circuit Low issue on a 2020 Ford F150?

The cost of repairing the Engine Coolant Temperature Sensor 1 Circuit Low issue on a 2020 Ford F150 can vary based on the cause of the problem and whether you choose to do the repairs yourself or take the vehicle to a professional mechanic.

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