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P1116 2012 Ford Fusion Code - Engine Coolant Temperature Sensor is Out of Self-Test Range

Quick Answer

The P1116 code for a 2012 Ford Fusion indicates that the Engine Coolant Temperature Sensor is out of self-test range. Common causes include Faulty Engine Coolant Temperature Sensor, Wiring issues in the sensor circuit, Malfunctioning ECM. 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
P1116 2012 Ford Fusion indicates Engine Coolant Temperature Sensor is Out of Self-Test Range.
Common causes
Common causes include Faulty Engine Coolant Temperature Sensor, Wiring issues in the sensor circuit, Malfunctioning ECM.
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 13, 2024
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Code P1116 2012 Ford Fusion Description

The P1116 code for a 2012 Ford Fusion indicates that the Engine Coolant Temperature Sensor is out of self-test range. This sensor is responsible for monitoring the temperature of the engine coolant and sending this information to the engine control module (ECM). The ECM uses this data to adjust fuel delivery and ignition timing to ensure optimal engine performance and efficiency. When the sensor is out of self-test range, it means that the ECM is not receiving accurate temperature readings, which can lead to a variety of issues.

OBDII Code P1116 2012 Ford Fusion - Engine Coolant Temperature Sensor is Out of Self-Test Range
P1116 2012 Ford Fusion Code - Engine Coolant Temperature Sensor is Out of Self-Test Range

Common Causes of P1116 2012 Ford Fusion

  1. Faulty Engine Coolant Temperature Sensor
  2. Wiring issues in the sensor circuit
  3. Malfunctioning ECM
  4. Cooling system problems such as low coolant levels or a stuck thermostat

Symptoms of P1116 2012 Ford Fusion

  1. Check Engine Light illuminated on the dashboard
  2. Poor fuel economy
  3. Rough idling or engine misfires
  4. Engine overheating or running too cold
  5. Decreased heater performance

How to Fix P1116 2012 Ford Fusion

  1. Begin by connecting a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific trouble code and confirm the issue.
  2. Inspect the Engine Coolant Temperature Sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Test the sensor's resistance using a multimeter to ensure it is within the manufacturer's specifications.
  4. Check the coolant level and condition, as well as the thermostat operation. Address any cooling system issues that may be contributing to the problem.
  5. Clear the trouble code from the ECM's memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1116 2012 Ford Fusion

The cost of repairing a P1116 code on a 2012 Ford Fusion can vary depending on the specific cause of the issue. In general, replacing the Engine Coolant Temperature Sensor can cost between $50 and $150, including parts and labor. If additional repairs to the cooling system or wiring are needed, the total cost could increase. It is advisable to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on the specific diagnosis and required repairs. Keep in mind that labor rates can vary, so it's essential to research local rates for a more precise cost estimate.

What does this mean?

Tech Notes for P1116 2012 Ford Fusion

Start by checking for coolant leaks, if there are not leaks the thermostat might be stuck open or closed and may need to be replaced, you still have an issue the engine coolant temp sensor or cylinder head temp sensor. The engine coolant temperature must be greater than 10°C (50°F) to pass the key ON engine OFF (KOEO) self-test and greater than 82°C (180°F) to pass the key ON engine running (KOER) self-test.

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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 P1116 2012 Ford Fusion Code

1. What does the OBDII code P1116 mean on a 2012 Ford Fusion?

P1116 indicates that the Engine Coolant Temperature (ECT) sensor is reporting a value outside the expected range during a self-test.

2. What are the common symptoms of code P1116 on a 2012 Ford Fusion?

Symptoms may include poor fuel economy, difficulty starting the engine, erratic temperature gauge readings, and the Check Engine Light turning on.

3. What causes the P1116 code to appear on a 2012 Ford Fusion?

Common causes include a faulty ECT sensor, wiring issues such as damaged or corroded connectors, or a malfunctioning thermostat.

4. Is it safe to drive a 2012 Ford Fusion with the P1116 code?

Driving with this code may lead to engine performance issues or overheating. It is recommended to address the issue promptly to avoid potential engine damage.

5. How do you diagnose the P1116 code on a 2012 Ford Fusion?

Diagnosis typically involves scanning for additional codes, inspecting the ECT sensor and its wiring, and checking the coolant level and thermostat functionality.

6. Can low coolant levels cause the P1116 code on a 2012 Ford Fusion?

Yes, low coolant levels can cause erratic temperature readings, potentially triggering the P1116 code.

7. How do you fix the P1116 code on a 2012 Ford Fusion?

Repairs may include replacing the ECT sensor, repairing damaged wiring, cleaning the sensor connector, or replacing the thermostat if it is stuck or malfunctioning.

8. What tools are needed to repair the P1116 code on a 2012 Ford Fusion?

You may need a diagnostic scan tool, a multimeter for testing wiring, and basic hand tools to replace the ECT sensor or thermostat.

9. How much does it cost to repair the P1116 code on a 2012 Ford Fusion?

The repair cost varies but typically ranges from $100 to $300, depending on whether the ECT sensor, thermostat, or wiring needs replacement.

10. Can a faulty thermostat trigger the P1116 code on a 2012 Ford Fusion?

Yes, a stuck or malfunctioning thermostat can cause abnormal temperature readings, leading to the P1116 code.

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