AutoCodes – Ford – P0112 1998 Ford F150

P0112 1998 Ford F150 Code - Intake Air Temperature Sensor Circuit Low Input

Quick Answer

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. 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
P0112 1998 Ford F150 indicates Intake Air Temperature Sensor Circuit Low Input.
Common causes
Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
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 4,370
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 13, 2020
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Code P0112 1998 Ford F150 Description

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. The sensor detects intake air temperature and transmits a signal to the Powertrain Control Module (PCM). The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle. It is used by the Powertrain Control Module to assist with the calculation of idle speed, fuel mixture, and spark advance. The Diagnostic Trouble Code (DTC) will set when the PCM detects an excessively low voltage from the sensor.
OBDII Code P0112 1998 Ford F150 - Intake Air Temperature Sensor Circuit Low Input - AutoCodes.com
P0112 1998 Ford F150 Code - Intake Air Temperature Sensor Circuit Low Input

What are the Possible Causes of the DTC P0112 1998 Ford F150?

  • Dirty Air Filter
  • Faulty Intake Air Temperature (IAT) Sensor
  • Intake Air Temperature Sensor harness is open or shorted
  • Intake Air Temperature Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0112 1998 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 P0112 1998 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.

Need more information about the P0112 1998 Ford F150 code?

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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 P0112 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P0112 on a 1998 Ford F150?

The common symptoms of code P0112 on a 1998 Ford F150 include poor engine performance, rough idling, and decreased fuel efficiency.

2. What does the OBDII code P0112 indicate on a 1998 Ford F150?

Code P0112 on a 1998 Ford F150 indicates a low input signal from the Intake Air Temperature (IAT) sensor circuit.

3. What are the possible causes of OBDII code P0112 on a 1998 Ford F150?

Possible causes of code P0112 on a 1998 Ford F150 include a faulty IAT sensor, damaged sensor wiring, or a poor electrical connection.

4. How can I diagnose the Intake Air Temperature sensor circuit on a 1998 Ford F150?

To diagnose the IAT sensor circuit on a 1998 Ford F150, you can use a multimeter to test the sensor's resistance, check for continuity in the wiring, and inspect the connector for any signs of damage or corrosion.

5. Can a dirty air filter trigger OBDII code P0112 on a 1998 Ford F150?

Yes, a dirty air filter restricting airflow to the IAT sensor can lead to inaccurate temperature readings and trigger code P0112 on a 1998 Ford F150.

6. Is it safe to continue driving with OBDII code P0112 on a 1998 Ford F150?

It is not recommended to drive with code P0112 on a 1998 Ford F150 as it can lead to poor engine performance and potential damage to the vehicle's components.

7. How can I reset OBDII code P0112 on a 1998 Ford F150?

You can reset code P0112 on a 1998 Ford F150 using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.

8. Will replacing the Intake Air Temperature sensor fix OBDII code P0112 on a 1998 Ford F150?

In many cases, replacing the faulty IAT sensor will resolve code P0112 on a 1998 Ford F150, but it is also important to check the wiring and connections for any issues.

9. Can extreme weather conditions trigger OBDII code P0112 on a 1998 Ford F150?

Extreme weather conditions, such as very high or low temperatures, can impact the IAT sensor readings and potentially trigger code P0112 on a 1998 Ford F150.

10. How much does it typically cost to repair OBDII code P0112 on a 1998 Ford F150?

The cost to repair code P0112 on a 1998 Ford F150 can vary depending on the underlying issue, but it may range from $50 to $200 for parts and labor.

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