AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Ford - P0118 2012 Ford Fusion

P0118 2012 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit High

- Code Popularity: 6,436 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P0118 2012 Ford Fusion?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
⚠ Does your Ford have Safety Recalls? → Check here

How to Fix the DTC P0118 2012 Ford Fusion?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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.

Search for P0118 2012 Ford Fusion Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0118 2012 Ford Fusion code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0118 2012 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 maximum is 4.6 volts or -50°C (-58°F).

OBDII Code P0118 2012 Ford Fusion - Engine Coolant Temperature Sensor Circuit High - AutoCodes.com
P0118 2012 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit High

Need More Information on the Code?

Need more information on how to fix the P0118 2012 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0118 2012 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

Code P0118 2012 Ford Fusion comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0118 2012 Ford Fusion code? Have you replaced any parts?
Any information is appreciated. Thanks