P1184 2012 Ford Fusion Code - Engine Oil Temperature Out Of Self Test Range
Quick Answer
The Engine Oil Temperature (EOT) sensor is a thermistor device in which resistance changes with temperature. Common causes include Engine not at operating temperature, Cooling system problem of stuck thermostat, Faulty Engine Oil Temperature (EOT) 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
- P1184 2012 Ford Fusion indicates Engine Oil Temperature Out Of Self Test Range.
- Common causes
- Common causes include Engine not at operating temperature, Cooling system problem of stuck thermostat, Faulty Engine Oil Temperature (EOT) 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.
Code P1184 2012 Ford Fusion Description
Thermistor-type sensors are considered passive sensor. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.
Voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the ECM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The EOT sensor measures the temperature of the engine oil. The sensor is typically threaded into the engine oil lubrication system. The ECM can use the EOT sensor input to determine the following:
- On variable cam timing (VCT) applications the EOT input is used to adjust the VCT control gains and logic for camshaft timing.
- The ECM can use the EOT sensor input in conjunction with other ECM inputs to determine oil degradation
- The ECM can use EOT sensor input to initiate a soft engine shutdown. To prevent engine damage from occurring as a result of high oil temperature, the ECM has the ability to initiate a soft engine shutdown. Whenever engine RPM exceeds a calibrated level for a certain period of time, the ECM will begin reducing power by disabling engine cylinders.
What are the Possible Causes of the DTC P1184 2012 Ford Fusion?
- Engine not at operating temperature
- Cooling system problem of stuck thermostat
- Faulty Engine Oil Temperature (EOT) sensor
- Engine Oil Temperature (EOT) sensor harness is open or shorted
- Engine Oil Temperature (EOT) sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1184 2012 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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1184 2012 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 P1184 2012 Ford Fusion Code
1. What does the OBDII code P1184 mean on a 2012 Ford Fusion?
P1184 indicates that the engine oil temperature sensor is reporting a value outside the expected range during a self-test.
2. What are the common symptoms of the P1184 code on a 2012 Ford Fusion?
Symptoms may include the check engine light turning on, erratic oil temperature readings, reduced fuel efficiency, or potential engine performance issues.
3. What causes the P1184 code on a 2012 Ford Fusion?
Common causes include a faulty engine oil temperature sensor, damaged wiring or connectors, or an issue with the PCM (Powertrain Control Module).
4. Can I drive my 2012 Ford Fusion with a P1184 code?
While the car may still be drivable, ignoring the code could lead to improper engine lubrication or overheating if the oil temperature is not accurately monitored.
5. How do I fix the P1184 code on a 2012 Ford Fusion?
Start by inspecting the engine oil temperature sensor, wiring, and connectors for damage or loose connections. Replace the sensor if necessary, and clear the code.
6. How much does it cost to fix the P1184 code on a 2012 Ford Fusion?
The cost to replace the engine oil temperature sensor typically ranges from $50 to $150, including parts and labor, but prices may vary depending on the repair shop.
7. Can a low oil level cause the P1184 code on a 2012 Ford Fusion?
Low oil levels are unlikely to directly trigger P1184, but they can contribute to engine performance issues, so it’s essential to check and maintain proper oil levels.
8. How can I diagnose the P1184 code on my 2012 Ford Fusion?
Use an OBDII scanner to confirm the code, then inspect the oil temperature sensor, its wiring, and connectors. Check for continuity and proper voltage using a multimeter.
9. Does the P1184 code mean I need to replace the PCM on my 2012 Ford Fusion?
Not necessarily. PCM failure is rare. Rule out issues with the sensor and wiring before considering PCM replacement.
10. Can extreme weather conditions cause the P1184 code on a 2012 Ford Fusion?
Extreme cold or heat might cause temporary sensor malfunctions, but if the code persists, further inspection is necessary to identify the root cause.
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