AutoCodes – Toyota – P0112 2006 Toyota Prius

P0112 2006 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 2006 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.

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Code Popularity 3,239

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 27, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0112 2006 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 2006 Toyota Prius - Intake Air Temperature Circuit Low Input - AutoCodes.com — P0112 2006 Toyota Prius Code - Intake Air Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2006 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 2006 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.

What does this mean?

Code Tech Notes

Intake air temperature sensor is built into the mass air flow meter. Before doing anything else clean the mass air flow meter with mass air flow sensor cleaner and reset the light.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0112 2006 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 2006 Toyota Prius code?

Need more information on how to fix the P0112 2006 Toyota Prius code? Get Access to Factory Service Manuals

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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 2006 Toyota Prius Code

1. What are the common symptoms of OBDII code P0112 in a 2006 Toyota Prius?

The common symptoms include poor fuel economy, rough idling, engine stalling, and a noticeable decrease in engine performance.

2. What does the OBDII code P0112 mean in a 2006 Toyota Prius?

The code P0112 indicates a low input from the intake air temperature (IAT) sensor circuit in the 2006 Toyota Prius.

3. What are the possible causes of the intake air temperature circuit low input in a 2006 Toyota Prius?

Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the issue related to OBDII code P0112 in my 2006 Toyota Prius?

You can start by checking the IAT sensor for proper operation, inspecting the wiring and connectors for damage, and scanning the ECM for any related error codes.

5. Can I drive my 2006 Toyota Prius with the intake air temperature circuit low input issue?

It is not recommended to drive your vehicle with this issue as it can lead to poor engine performance, decreased fuel efficiency, and potential engine damage.

6. How can I repair the intake air temperature circuit low input problem in my 2006 Toyota Prius?

The repair process may involve replacing the faulty IAT sensor, repairing or replacing damaged wiring or connectors, and clearing the error code with a diagnostic tool.

7. Is it possible to reset the OBDII code P0112 in a 2006 Toyota Prius without fixing the issue?

While you can clear the error code temporarily, it is crucial to address the underlying problem to prevent further issues and ensure proper vehicle operation.

8. Will fixing the intake air temperature circuit low input issue improve my 2006 Toyota Prius's fuel efficiency?

Yes, addressing this issue can help improve fuel efficiency by ensuring the engine receives accurate temperature readings for optimal performance.

9. How much does it typically cost to repair the intake air temperature circuit low input problem in a 2006 Toyota Prius?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can a DIY enthusiast fix the intake air temperature circuit low input problem in a 2006 Toyota Prius?

If you have experience working on automotive electrical systems and access to the necessary tools, you may be able to diagnose and repair this issue yourself.