P1115 1999 Ford F150 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 1999 Ford F150 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 1999 Ford F150 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 1999 Ford F150?
- 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 1999 Ford F150?
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 1999 Ford F150 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 1999 Ford F150 Code
1. What are the common symptoms of OBDII code P1115 in a 1999 Ford F150?
- Common symptoms include poor engine performance, reduced fuel efficiency, and possible stalling or rough idling.
2. What does the OBDII code P1115 indicate in a 1999 Ford F150?
- The code P1115 indicates an issue with the Intake Air Temperature Sensor 2 Circuit being too high.
3. What are the possible causes of OBDII code P1115 in a 1999 Ford F150?
- Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors, or a problem with the sensor circuit.
4. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High issue in my 1999 Ford F150?
- You can use a multimeter to test the intake air temperature sensor's resistance, check the wiring for any damage, and inspect the connectors for a secure connection.
5. Can I drive my 1999 Ford F150 with the P1115 trouble code?
- It is not recommended to drive the vehicle with the P1115 code as it can lead to poor engine performance and potential damage if left unresolved.
6. How can I repair the Intake Air Temperature Sensor 2 Circuit High issue in my 1999 Ford F150?
- The repair typically involves replacing the faulty intake air temperature sensor, repairing or replacing damaged wiring, and ensuring all connections are secure.
7. Will resetting the trouble codes clear the P1115 error in my 1999 Ford F150?
- Resetting the trouble codes may temporarily clear the P1115 error, but it is important to address the underlying issue causing the code to prevent it from reoccurring.
8. Is the Intake Air Temperature Sensor 2 Circuit High issue in a 1999 Ford F150 easy to fix?
- The repair for the Intake Air Temperature Sensor 2 Circuit High issue can be straightforward, especially if the problem lies with the sensor itself or its connections.
9. Can a DIY enthusiast repair the P1115 code in a 1999 Ford F150?
- A DIY enthusiast with some automotive repair experience may be able to address the P1115 code by following diagnostic procedures and replacing the faulty components.
10. How can I prevent the OBDII code P1115 from appearing in my 1999 Ford F150 in the future?
- Regular maintenance, such as checking and cleaning the intake air temperature sensor, inspecting wiring for damage, and ensuring connections are secure, can help prevent the P1115 code from reoccurring.
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