AutoCodes – Toyota – P0112 2007 Toyota Prius

P0112 2007 Toyota Prius Code - Intake Air Temperature Circuit Low Input

Quick Answer

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) 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 2007 Toyota Prius indicates Intake Air Temperature Circuit Low Input.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) 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 3,720
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 27, 2024
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Code P0112 2007 Toyota Prius Description

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. 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.
OBDII Code P0112 2007 Toyota Prius - Intake Air Temperature Circuit Low Input - AutoCodes.com
P0112 2007 Toyota Prius Code - Intake Air Temperature Circuit Low Input

What are the Possible Causes of the DTC P0112 2007 Toyota Prius?

  • Faulty Intake Air Temperature (IAT) sensor
  • Dirty air filter
  • Intake Air Temperature (IAT) sensor harness is open or shorted
  • Intake Air Temperature (IAT) sensor circuit poor electrical connection

How to Fix the DTC P0112 2007 Toyota Prius?

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 2007 Toyota Prius 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 2007 Toyota Prius code?

Need more information on how to fix the P0112 2007 Toyota Prius code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0112 2007 Toyota Prius code diagnosed by a professional: Find a repair shop in your area

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 2007 Toyota Prius Code

1. What are the common symptoms of OBDII code P0112 in a 2007 Toyota Prius?

The common symptoms include rough idling, poor fuel efficiency, engine stalling, and a possible decrease in overall engine performance.

2. What does the OBDII code P0112 "Intake Air Temperature Circuit Low Input" indicate in a 2007 Toyota Prius?

This code indicates that the Engine Control Module (ECM) has detected a lower than normal signal from the intake air temperature sensor.

3. What are the possible causes of OBDII code P0112 in a 2007 Toyota Prius?

Possible causes include a faulty intake air temperature sensor, a damaged or disconnected sensor wiring, a poor electrical connection, or a malfunctioning ECM.

4. How can I diagnose the cause of OBDII code P0112 in my 2007 Toyota Prius?

You can start by visually inspecting the intake air temperature sensor and its wiring for any damage. Using a multimeter, you can test the sensor's resistance and voltage to determine if it is functioning properly.

5. Can I continue driving my 2007 Toyota Prius with OBDII code P0112?

It is not recommended to continue driving with this code present, as it can lead to further engine damage and potential safety issues. It is best to address the underlying issue promptly.

6. How can I repair OBDII code P0112 in my 2007 Toyota Prius?

Repair options include replacing the intake air temperature sensor, repairing or replacing damaged wiring, ensuring a secure electrical connection, and resetting the ECM to clear the code.

7. Will resetting the ECM clear OBDII code P0112 in a 2007 Toyota Prius?

Resetting the ECM may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the ECM detects the problem again.

8. How much does it typically cost to repair OBDII code P0112 in a 2007 Toyota Prius?

The cost of repair can vary depending on the exact cause of the issue. Replacing the intake air temperature sensor can cost between $50 to $150, while labor costs can range from $50 to $150.

9. Is OBDII code P0112 a serious issue in a 2007 Toyota Prius?

While it may not cause immediate engine failure, ignoring this code can lead to decreased performance and fuel efficiency. It is recommended to address the issue promptly to avoid further complications.

10. Can a DIY enthusiast fix OBDII code P0112 in a 2007 Toyota Prius?

Yes, with the right tools and knowledge, a DIY enthusiast can diagnose and repair OBDII code P0112. However, if unsure, it is best to seek professional help to ensure the issue is properly resolved.

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