P1115 2012 Ford Fusion Code - Intake Air Temperature Sensor 2 Circuit High
Quick Answer
The IAT sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature Sensor 2, Intake Air Temperature Sensor 2 harness is open or shorted, Intake Air Temperature Sensor 2 circuit poor electrical connection. 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
- P1115 2012 Ford Fusion indicates Intake Air Temperature Sensor 2 Circuit High.
- Common causes
- Common causes include Faulty Intake Air Temperature Sensor 2, Intake Air Temperature Sensor 2 harness is open or shorted, Intake Air Temperature Sensor 2 circuit poor electrical connection.
- 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 P1115 2012 Ford Fusion Description
Thermistor-type sensors are considered passive sensors. 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 PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The IAT sensor provides air temperature information to the PCM. The PCM uses the air temperature information as a correction factor in the calculation of fuel, spark, and air flow.
The IAT sensor provides a quicker temperature change response time than the ECT or CHT sensor.
Currently there are 2 types of IAT sensors used, a stand alone, non-integrated type and an integrated type. Both types function the same, however the integrated type is incorporated into the mass air flow (MAF) sensor instead of being a stand-alone sensor.
What are the Possible Causes of the DTC P1115 2012 Ford Fusion?
- Faulty Intake Air Temperature Sensor 2
- Intake Air Temperature Sensor 2 harness is open or shorted
- Intake Air Temperature Sensor 2 circuit poor electrical connection
- Damaged Powertrain Control Module (PCM)
How to Fix the DTC P1115 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1115 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 P1115 2012 Ford Fusion Code
1. What are the common symptoms of OBDII code P1115 on a 2012 Ford Fusion?
Symptoms may include poor engine performance, reduced fuel efficiency, and possibly an illuminated check engine light.
2. What does the OBDII code P1115 on a 2012 Ford Fusion indicate?
This code specifically points to an issue with the Intake Air Temperature Sensor 2 Circuit registering a high voltage output.
3. What are the potential causes of the Intake Air Temperature Sensor 2 Circuit High error on a 2012 Ford Fusion?
Causes may include a faulty intake air temperature sensor, wiring issues, a damaged sensor connector, or an internal ECM problem.
4. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High issue on my 2012 Ford Fusion?
Diagnosis involves checking the sensor's wiring for any damage, testing the sensor's resistance, and inspecting the connector for corrosion or loose pins.
5. Can a dirty air filter trigger the P1115 code on a 2012 Ford Fusion?
While a dirty air filter can affect engine performance, it is unlikely to directly cause the Intake Air Temperature Sensor 2 Circuit High error.
6. What are the repair options for resolving the OBDII code P1115 on a 2012 Ford Fusion?
Repair options include replacing the intake air temperature sensor, repairing any damaged wiring, cleaning the sensor connector, or seeking professional diagnostic assistance.
7. Is it safe to continue driving a 2012 Ford Fusion with the P1115 code illuminated?
It is generally not recommended to drive the vehicle with a persistent check engine light, as it indicates an underlying issue that may worsen over time if left unaddressed.
8. Can resetting the fault codes temporarily fix the P1115 error on a 2012 Ford Fusion?
Resetting the fault codes may temporarily clear the check engine light, but if the underlying issue causing the P1115 code is not fixed, the light is likely to reappear.
9. How much does it typically cost to repair the Intake Air Temperature Sensor 2 Circuit High problem on a 2012 Ford Fusion?
Costs can vary depending on the specific cause of the issue, but replacing the intake air temperature sensor or repairing wiring typically ranges from $100 to $300, including parts and labor.
10. Will the P1115 code on a 2012 Ford Fusion affect the vehicle's emissions or overall performance?
Yes, unresolved issues related to the Intake Air Temperature Sensor 2 Circuit High can impact emissions output and may lead to reduced engine performance and fuel efficiency.
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