AutoCodes – Ford – P0117 2007 Ford Fusion

P0117 2007 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit Low

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty engine coolant thermostat, Faulty Engine Coolant Temperature (ECT) Sensor or Cylinder Head Temperature (CHT) Sensor. 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 2007 Ford Fusion indicates Engine Coolant Temperature Sensor Circuit Low.
Common causes: Common causes include Low engine coolant level, Faulty engine coolant thermostat, Faulty Engine Coolant Temperature (ECT) Sensor or Cylinder Head Temperature (CHT) Sensor.
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 3,850

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 Aug 02, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0117 2007 Ford Fusion Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Powertrain Control Module (PCM). The modified signal returns to the PCM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases. The Diagnostic Trouble Code (DTC) indicates the sensor signal is greater than the self-test maximum. The ECT sensor minimum is 0.2 volts or 121°C (250°F).

OBDII Code P0117 2007 Ford Fusion - Engine Coolant Temperature Sensor Circuit Low - AutoCodes.com — P0117 2007 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0117 2007 Ford Fusion?

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

How to Fix the DTC P0117 2007 Ford Fusion?

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 needs 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 2007 Ford Fusion 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 2007 Ford Fusion 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 2007 Ford Fusion Code

1. What are the common symptoms of OBDII code P0117 in a 2007 Ford Fusion?

The common symptoms of OBDII code P0117 in a 2007 Ford Fusion include issues with the engine temperature gauge, poor fuel economy, rough idling, and potential engine overheating.

2. What does the OBDII code P0117 indicate in a 2007 Ford Fusion?

The OBDII code P0117 in a 2007 Ford Fusion indicates a problem with the Engine Coolant Temperature (ECT) Sensor Circuit, specifically that the sensor is reading a low voltage signal.

3. What are the possible causes of OBDII code P0117 in a 2007 Ford Fusion?

Possible causes of OBDII code P0117 in a 2007 Ford Fusion include a faulty ECT sensor, damaged wiring or connectors in the ECT circuit, low engine coolant levels, or a malfunctioning engine control module.

4. How can I diagnose the OBDII code P0117 in my 2007 Ford Fusion?

To diagnose OBDII code P0117 in a 2007 Ford Fusion, you can use a scan tool to read the code, test the ECT sensor for proper resistance and voltage, visually inspect the wiring and connectors for damage, and check coolant levels.

5. Can I drive my 2007 Ford Fusion with OBDII code P0117?

It is not recommended to drive your 2007 Ford Fusion with OBDII code P0117, as it can lead to engine performance issues and potential overheating problems. It is best to address the issue promptly to avoid further damage.

6. How can I repair OBDII code P0117 in my 2007 Ford Fusion?

To repair OBDII code P0117 in a 2007 Ford Fusion, you may need to replace the ECT sensor, repair any damaged wiring or connectors, ensure proper engine coolant levels, and reset the fault code using a scan tool.

7. Will OBDII code P0117 in a 2007 Ford Fusion cause the check engine light to illuminate?

Yes, OBDII code P0117 in a 2007 Ford Fusion will cause the check engine light to illuminate to alert you to a potential issue with the Engine Coolant Temperature Sensor Circuit.

8. How important is the Engine Coolant Temperature Sensor in a 2007 Ford Fusion?

The Engine Coolant Temperature Sensor is crucial in monitoring engine temperature and ensuring proper fuel mixture and engine performance in a 2007 Ford Fusion. A faulty sensor can lead to various issues.

9. Can a DIY enthusiast fix OBDII code P0117 in a 2007 Ford Fusion?

A DIY enthusiast with automotive knowledge and the right tools can potentially fix OBDII code P0117 in a 2007 Ford Fusion by following proper diagnostic procedures and making necessary repairs or replacements.

10. How much does it cost to repair OBDII code P0117 in a 2007 Ford Fusion at a mechanic?

The cost to repair OBDII code P0117 in a 2007 Ford Fusion at a mechanic can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.