P0117 2018 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 2018 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.
Code P0117 2018 Ford F150 Description
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).
What are the Possible Causes of the DTC P0117 2018 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 2018 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0117 2018 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 2018 Ford F150 code?
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Frequently Asked Questions about P0117 2018 Ford F150 Code
1. What are the common symptoms of OBDII code P0117 in a 2018 Ford F150?
The common symptoms include inaccurate temperature gauge readings, engine overheating, poor fuel economy, and potential stalling or rough idling.
2. What are the possible causes of the Engine Coolant Temperature Sensor 1 Circuit Low code in a 2018 Ford F150?
Potential causes of P0117 in a 2018 Ford F150 include a faulty engine coolant temperature sensor, damaged wiring or connectors, low coolant levels, or a malfunctioning engine control module.
3. How can I diagnose the P0117 code in my 2018 Ford F150?
Diagnosing the code involves using an OBDII scanner to retrieve the code, checking the coolant level, inspecting the sensor and its wiring for damage, and testing the sensor's resistance with a multimeter.
4. What are the repair options for fixing the P0117 code in a 2018 Ford F150?
Repair options may include replacing the engine coolant temperature sensor, repairing or replacing damaged wiring or connectors, ensuring proper coolant levels, or reprogramming the engine control module if necessary.
5. Can I continue driving my 2018 Ford F150 with the P0117 code present?
It is not recommended to drive your vehicle with the P0117 code as it can lead to engine overheating, poor performance, and potential damage. Prompt diagnosis and repair are advisable.
6. How much does it typically cost to repair the P0117 code in a 2018 Ford F150?
The cost of repairing the P0117 code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Can I reset the OBDII code P0117 in my 2018 Ford F150 without fixing the underlying issue?
Resetting the code without addressing the underlying problem will only temporarily clear the error code. The issue will likely resurface, and it is crucial to diagnose and repair the root cause.
8. Will the P0117 code affect my 2018 Ford F150's emissions or overall performance?
Yes, the P0117 code can impact your vehicle's emissions and performance by causing incorrect fuel mixture, potential overheating, and other drivability issues.
9. Is the Engine Coolant Temperature Sensor 1 Circuit Low code a common problem in 2018 Ford F150 vehicles?
While not extremely common, the P0117 code can occur in 2018 Ford F150 models due to sensor failures, wiring issues, or other related factors.
10. Can a DIY enthusiast with basic automotive knowledge repair the P0117 code in a 2018 Ford F150?
Depending on the specific cause, a DIY enthusiast may be able to address the P0117 code by replacing the coolant temperature sensor or checking for obvious wiring issues. However, more complex diagnostics and repairs may require professional assistance.
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