AutoCodes – Ford – P1115 2003 Ford F150

P1115 2003 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 2003 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,530
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 21, 2019
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Code P1115 2003 Ford F150 Description

The IAT sensor is a thermistor device in which resistance changes with temperature. The electrical resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
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.
OBDII Code P1115 2003 Ford F150 - Intake Air Temperature Sensor 2 Circuit High - AutoCodes.com
P1115 2003 Ford F150 Code - Intake Air Temperature Sensor 2 Circuit High

What are the Possible Causes of the DTC P1115 2003 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 2003 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 2003 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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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 P1115 2003 Ford F150 Code

1. What are the common symptoms of OBDII code P1115 on a 2003 Ford F150 related to the Intake Air Temperature Sensor 2 Circuit High?

The common symptoms include poor engine performance, reduced fuel efficiency, and potential stalling or rough idling.

2. What causes the OBDII code P1115 on a 2003 Ford F150 indicating Intake Air Temperature Sensor 2 Circuit High?

The code is typically triggered by a malfunction in the intake air temperature sensor 2 circuit, which may be due to a faulty sensor, wiring issues, or a poor connection.

3. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High issue on my 2003 Ford F150?

You can diagnose the problem by checking the wiring and connections of the intake air temperature sensor 2, testing the sensor's resistance, and using a scan tool to read the code and monitor sensor data.

4. Can I still drive my 2003 Ford F150 with the OBDII code P1115 for Intake Air Temperature Sensor 2 Circuit High?

It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and poor performance. It's best to address the issue promptly.

5. How do I repair the Intake Air Temperature Sensor 2 Circuit High problem on my 2003 Ford F150?

To repair the issue, you may need to replace the intake air temperature sensor 2, repair any damaged wiring or connections, and clear the error code using a scan tool.

6. Are there any DIY tips for fixing the OBDII code P1115 on a 2003 Ford F150 related to the Intake Air Temperature Sensor 2 Circuit High?

While some basic troubleshooting like checking connections and wiring can be done DIY, it is recommended to consult a professional mechanic for a proper diagnosis and repair of this issue.

7. Will resetting the ECU clear the OBDII code P1115 for Intake Air Temperature Sensor 2 Circuit High on my 2003 Ford F150?

Resetting the ECU may temporarily clear the code, but if the underlying issue with the intake air temperature sensor 2 circuit is not resolved, the code is likely to reappear.

8. Is the Intake Air Temperature Sensor 2 Circuit High problem a common issue in 2003 Ford F150 vehicles?

While not extremely common, issues with the intake air temperature sensor circuit can occur in various vehicles, including the 2003 Ford F150, especially as the vehicle ages.

9. Can a bad Intake Air Temperature Sensor 2 affect other systems in my 2003 Ford F150?

Yes, a malfunctioning intake air temperature sensor 2 can impact the engine's air-fuel mixture, leading to poor performance, reduced fuel efficiency, and potential damage to other engine components.

10. How much does it typically cost to repair the OBDII code P1115 Intake Air Temperature Sensor 2 Circuit High issue on a 2003 Ford F150?

The cost of repair can vary depending on the root cause of the problem, but it may range from $100 to $300 for parts and labor at a dealership or repair shop.

1. What are the common symptoms of OBDII code P1115 on a 2003 Ford F150?

The common symptoms of code P1115 include rough idling, poor engine performance, and possibly an illuminated check engine light.

2. What does the OBDII code P1115 indicate for a 2003 Ford F150?

Code P1115 indicates an issue with the Intake Air Temperature Sensor 2 Circuit registering a high voltage or resistance.

3. What are the possible causes of OBDII code P1115 on a 2003 Ford F150?

Possible causes of code P1115 include a faulty Intake Air Temperature Sensor 2, damaged wiring or connectors, or a problem with the sensor's circuit.

4. How can I diagnose the Intake Air Temperature Sensor 2 Circuit High issue on a 2003 Ford F150?

Diagnosing the issue involves checking the wiring and connectors for damage, testing the sensor's resistance, and verifying the sensor's voltage output.

5. Can I still drive my 2003 Ford F150 with OBDII code P1115?

It is not recommended to drive your vehicle with code P1115 as it can lead to poor engine performance and potential damage if left unresolved.

6. How do I repair the Intake Air Temperature Sensor 2 Circuit High issue on my 2003 Ford F150?

To repair the issue, you may need to replace the Intake Air Temperature Sensor 2, repair any damaged wiring or connectors, and clear the error code from the vehicle's computer.

7. Is it possible to reset the OBDII code P1115 on a 2003 Ford F150 without repairing the issue?

Resetting the code without addressing the underlying problem will only temporarily turn off the check engine light, as the issue will likely reoccur.

8. How much does it cost to fix OBDII code P1115 on a 2003 Ford F150?

The cost of fixing code P1115 can vary depending on the specific cause of the issue, but it may involve replacing the sensor or repairing wiring, typically costing between $100 to $300.

9. Can a DIY enthusiast repair OBDII code P1115 on a 2003 Ford F150?

If you have the necessary tools and automotive knowledge, you may be able to replace the Intake Air Temperature Sensor 2 or repair the wiring yourself.

10. How long does it take to repair OBDII code P1115 on a 2003 Ford F150?

The repair time for code P1115 can vary based on the extent of the issue and your experience level, but it typically takes around 1-2 hours to diagnose and fix the problem.

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