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P1116 2010 Ford Fusion Code - Engine Coolant Temperature Sensor is Out of Self-Test Range

Quick Answer

The P1116 diagnostic trouble code for a 2010 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 such as a short or open circuit, Corrosion or damage to sensor connectors. 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 2010 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 such as a short or open circuit, Corrosion or damage to sensor connectors.
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 15, 2024
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Code P1116 2010 Ford Fusion Description

The P1116 diagnostic trouble code for a 2010 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 various issues with the vehicle's performance.

OBDII Code P1116 2010 Ford Fusion - Engine Coolant Temperature Sensor is Out of Self-Test Range
P1116 2010 Ford Fusion Code - Engine Coolant Temperature Sensor is Out of Self-Test Range

Common Causes of P1116 2010 Ford Fusion

  1. Faulty Engine Coolant Temperature Sensor
  2. Wiring issues such as a short or open circuit
  3. Corrosion or damage to sensor connectors
  4. ECM malfunction
  5. Coolant leaks affecting sensor readings

Symptoms of P1116 2010 Ford Fusion

  1. Check Engine Light illuminated on the dashboard
  2. Engine running hotter or colder than usual
  3. Poor fuel economy
  4. Rough idling or stalling
  5. Difficulty starting the engine, especially in cold weather

How to Fix P1116 2010 Ford Fusion

  1. Begin by diagnosing the issue using a scan tool to confirm the P1116 code and check for any other related codes.
  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 and voltage to ensure it is functioning correctly.
  4. Check the coolant level and quality, as low coolant levels or contaminated coolant can affect sensor readings.
  5. Clear the trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1116 2010 Ford Fusion

The typical repair costs for addressing a P1116 code on a 2010 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for P1116 2010 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 2010 Ford Fusion Code

1. What does OBDII code P1116 on a 2010 Ford Fusion mean?

The code P1116 indicates that the Engine Coolant Temperature Sensor is Out of Self-Test Range.

2. What are the common symptoms of a P1116 code on a 2010 Ford Fusion?

Common symptoms may include inaccurate temperature readings on the dashboard, engine overheating, poor fuel economy, and potential illumination of the check engine light.

3. What are the possible causes of a P1116 code on a 2010 Ford Fusion?

Possible causes include a faulty engine coolant temperature sensor, wiring issues, a malfunctioning thermostat, low coolant level, or a problem with the engine control module.

4. How do you diagnose a P1116 code on a 2010 Ford Fusion?

Diagnosis typically involves checking the coolant level, inspecting the sensor and its wiring for damage, testing the sensor's resistance, and scanning the vehicle's computer for additional fault codes.

5. Can I continue driving my 2010 Ford Fusion with a P1116 code?

It is not recommended to drive your vehicle with a P1116 code, as it can lead to potential engine damage due to inaccurate temperature readings.

6. How do you repair a P1116 code on a 2010 Ford Fusion?

Repair usually involves replacing the engine coolant temperature sensor, fixing any wiring issues, ensuring proper coolant levels, and clearing the fault codes from the vehicle's computer.

7. Can a DIY enthusiast fix a P1116 code on a 2010 Ford Fusion?

Depending on your mechanical skills, replacing the engine coolant temperature sensor can be a DIY task. However, it's essential to ensure proper diagnosis and repair to avoid further issues.

8. How much does it cost to repair a P1116 code on a 2010 Ford Fusion?

The cost of repairing a P1116 code can vary depending on the root cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

9. Will a P1116 code reset itself on a 2010 Ford Fusion?

If the underlying issue causing the P1116 code is fixed, the check engine light may reset itself after a few driving cycles. However, it's recommended to clear the code manually using an OBDII scanner.

10. How can I prevent a P1116 code from appearing on my 2010 Ford Fusion in the future?

Regular maintenance, including checking coolant levels, replacing the engine coolant temperature sensor at recommended intervals, and addressing any cooling system issues promptly, can help prevent the recurrence of a P1116 code.

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