AutoCodes – Toyota – P0112 2006 Toyota Highlander

P0112 2006 Toyota Highlander 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 Highlander 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 2,893

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 Jun 14, 2020

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

What does this mean?

What are the Possible Causes of the DTC P0112 2006 Toyota Highlander?

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 Highlander?

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

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0112 2006 Toyota Highlander 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 Highlander code?

Need more information on how to fix the P0112 2006 Toyota Highlander 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 Highlander Code

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

- Common symptoms include poor engine performance, decreased fuel efficiency, and potential illumination of the Check Engine Light.

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

- This code indicates a low input signal from the intake air temperature (IAT) sensor circuit.

3. What are the possible causes of OBDII code P0112 in a 2006 Toyota Highlander?

- 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 cause of OBDII code P0112 in my 2006 Toyota Highlander?

- You can diagnose the issue by checking the IAT sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to monitor the sensor readings.

5. Can a dirty air filter trigger OBDII code P0112 in a 2006 Toyota Highlander?

- Yes, a dirty air filter restricting airflow to the IAT sensor can cause incorrect temperature readings and trigger code P0112.

6. What are some repair tips for fixing OBDII code P0112 in a 2006 Toyota Highlander?

- Repair tips include cleaning or replacing the IAT sensor, repairing any damaged wiring or connectors, and ensuring proper airflow to the sensor.

7. Is it safe to continue driving with OBDII code P0112 in a 2006 Toyota Highlander?

- It is not recommended to drive with this code present, as it can lead to engine performance issues and potentially cause further damage if left unresolved.

8. Can I reset the Check Engine Light after fixing OBDII code P0112 in my 2006 Toyota Highlander?

- Yes, you can reset the Check Engine Light using an OBDII scanner after resolving the underlying issue triggering code P0112.

9. How much does it typically cost to repair OBDII code P0112 in a 2006 Toyota Highlander?

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

10. Are there any recalls or technical service bulletins related to OBDII code P0112 in a 2006 Toyota Highlander?

- It's advisable to check with Toyota dealership or online resources to see if there are any recalls or technical service bulletins related to this specific OBDII code in the 2006 Highlander model.