P0118 2006 Ford Fusion Code - Engine Coolant Temperature Sensor Circuit High
Quick Answer
Indicates the sensor signal is greater than the self-test maximum. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) 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
- P0118 2006 Ford Fusion indicates Engine Coolant Temperature Sensor Circuit High.
- Common causes
- Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) 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 P0118 2006 Ford Fusion Description
What are the Possible Causes of the DTC P0118 2006 Ford Fusion?
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor or cylinder head temp (CHT) sensor circuit poor electrical connection
How to Fix the DTC P0118 2006 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0118 2006 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.
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Frequently Asked Questions about P0118 2006 Ford Fusion Code
What does OBDII code P0118 indicate on a 2006 Ford Fusion?
Code P0118 indicates that the Engine Coolant Temperature (ECT) sensor circuit is sending a higher voltage signal than expected to the engine control module (ECM), suggesting that the coolant temperature is abnormally low.
What are common symptoms of code P0118 in a 2006 Ford Fusion?
Symptoms may include poor fuel economy, irregular temperature gauge readings, engine overheating warning, rough idling, and difficulty starting the engine.
What causes the P0118 code in a 2006 Ford Fusion?
Common causes include a faulty ECT sensor, corrosion or damage in the ECT sensor connector, problems with the ECT sensor wiring (shorts or opens), or a problem with the engine control module itself.
How can I troubleshoot the P0118 code in a 2006 Ford Fusion?
Start by visually inspecting the ECT sensor and its connector for any signs of damage or corrosion. Check the wiring for breaks or short circuits. If the visual inspection doesn’t reveal any issues, consider testing the ECT sensor with a multimeter and comparing the readings with manufacturer specifications.
What are the steps to replace the ECT sensor in a 2006 Ford Fusion?
To replace the ECT sensor: 1. Disconnect the battery. 2. Locate the ECT sensor on the engine block. 3. Disconnect the sensor’s electrical connector. 4. Remove the sensor using the appropriate socket or wrench. 5. Install the new sensor, ensuring it is securely tightened. 6. Reconnect the electrical connector and the battery. 7. Start the engine to ensure the issue is resolved.
How much does it typically cost to fix the P0118 code in a 2006 Ford Fusion?
The cost to replace an ECT sensor can vary, but typically parts are between $20 and $50, with labor costing $50 to $100 depending on the mechanic’s rates and the complexity of the replacement.
Can I drive my 2006 Ford Fusion with the P0118 code active?
While you can technically still drive with the P0118 code active, it is not advisable as it can lead to engine overheating, poor performance, and increased fuel consumption. It's best to address the issue promptly to avoid potential engine damage.
Does the P0118 code affect the emissions system of a 2006 Ford Fusion?
Yes, a malfunctioning ECT sensor can affect the emissions system as it influences the air-fuel mixture and engine timing, which can lead to increased emissions. This might cause the vehicle to fail emissions tests.
Discuss the causes and fixes for P0118 2006 Ford Fusion OBDII Code
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