AutoCodes – Ford – P0117 2017 Ford F150

P0117 2017 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Low

Quick Answer

The Engine Coolant Temperature (ECT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) Sensor, Faulty engine coolant thermostat. 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 2017 Ford F150 indicates Engine Coolant Temperature Sensor 1 Circuit Low.
Common causes: Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) Sensor, Faulty engine coolant thermostat.
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 206

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 22, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0117 2017 Ford F150 Description

The Engine Coolant Temperature (ECT) Sensor is a thermistor device in which resistance changes with temperature. The resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance changes the voltage drop across the sensor pins and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so varying the resistance of the passive sensor causes a variation in total current flow. The voltage that is dropped across a fixed resistor (pull-up resister) in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The ECT Sensor is located in an engine coolant passage and measures the engine coolant temperature. The PCM uses the engine coolant temperature input for fuel control and for cooling fan control. The ECT Sensor can be a threaded or twist lock type.
This Diagnostic Trouble Code (DTC) is set when the ECT Sensor signal is less than the self-test minimum. The ECT Sensor signal minimum is 121°C (250°F).

OBDII Code P0117 2017 Ford F150 - Engine Coolant Temperature Sensor 1 Circuit Low - AutoCodes.com — P0117 2017 Ford F150 Code - Engine Coolant Temperature Sensor 1 Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0117 2017 Ford F150?

Low engine coolant level
Faulty Engine Coolant Temperature (ECT) Sensor
Faulty engine coolant thermostat
Engine Coolant Temperature Sensor harness is open or shorted
Engine Coolant Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0117 2017 Ford F150?

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 does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0117 2017 Ford F150 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 P0117 2017 Ford F150 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.

Frequently Asked Questions about P0117 2017 Ford F150 Code

1. What are the common symptoms of OBDII code P0117 on a 2017 Ford F150?

The common symptoms of OBDII code P0117 on a 2017 Ford F150 include inaccurate temperature gauge readings, engine overheating, difficulty starting the vehicle, and reduced fuel efficiency.

2. What can cause the Engine Coolant Temperature Sensor 1 Circuit Low error code on a 2017 Ford F150?

The Engine Coolant Temperature Sensor 1 Circuit Low code (P0117) on a 2017 Ford F150 is often caused by a faulty engine coolant temperature sensor, a damaged sensor wiring harness, or low coolant levels.

3. How serious is the P0117 code on a 2017 Ford F150?

While the P0117 code may not immediately affect the drivability of the vehicle, ignoring it can lead to potential engine damage due to incorrect temperature readings. It is recommended to address this issue promptly.

4. Can I drive my 2017 Ford F150 with the P0117 code?

It is not advisable to drive your 2017 Ford F150 with the P0117 code for an extended period, as it can lead to overheating and potential engine damage. It is recommended to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the P0117 code on my 2017 Ford F150?

Diagnosing the P0117 code involves using an OBDII scanner to read the fault code, checking the engine coolant temperature sensor for proper operation, inspecting the wiring harness for damage, and ensuring the coolant levels are adequate.

6. Is it possible to repair the P0117 code on a 2017 Ford F150 myself?

Depending on your automotive skills and tools, it may be possible to repair the P0117 code on your 2017 Ford F150 yourself. However, if you are unsure, it is recommended to seek professional help to avoid potential complications.

7. What are some tips for fixing the Engine Coolant Temperature Sensor 1 Circuit Low code on a 2017 Ford F150?

Some repair tips for addressing the P0117 code include checking and cleaning the sensor connections, replacing the engine coolant temperature sensor if faulty, inspecting and repairing any damaged wiring, and ensuring proper coolant levels.

8. Will resetting the OBDII code fix the issue on my 2017 Ford F150?

Simply resetting the OBDII code may temporarily clear the error, but it will not fix the underlying issue causing the P0117 code. It is essential to diagnose and repair the root cause to prevent the code from reoccurring.

9. How much does it typically cost to repair the P0117 code on a 2017 Ford F150?

The cost of repairing the P0117 code on a 2017 Ford F150 can vary depending on the exact cause of the issue, the labor rates in your area, and whether you choose to repair it yourself or seek professional help. Costs may include parts and labor.

10. Can the Engine Coolant Temperature Sensor 1 Circuit Low code affect other systems in my 2017 Ford F150?

Yes, the P0117 code can potentially affect other systems in your 2017 Ford F150, such as the fuel injection system, transmission performance, and overall engine efficiency. Addressing the issue promptly can prevent further complications.