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P0112 2010 Nissan Pathfinder Code - Intake Air Temperature Circuit Low Input

Quick Answer

The P0112 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder refers to the Intake Air Temperature Circuit Low Input. Common causes include Faulty or failed IAT sensor, Damaged or corroded sensor connector, Wiring issues such as a short or open circuit. 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 2010 Nissan Pathfinder indicates Intake Air Temperature Circuit Low Input.
Common causes
Common causes include Faulty or failed IAT sensor, Damaged or corroded sensor connector, Wiring issues such as a short or open circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0112 2010 Nissan Pathfinder Description

The P0112 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder refers to the Intake Air Temperature Circuit Low Input. This code indicates that the Engine Control Module (ECM) has detected a voltage signal from the Intake Air Temperature (IAT) sensor that is lower than expected. The IAT sensor is responsible for measuring the temperature of the air entering the engine, which is crucial for determining the correct air-fuel mixture for optimal engine performance.

OBDII Code P0112 2010 Nissan Pathfinder - Intake Air Temperature Circuit Low Input
P0112 2010 Nissan Pathfinder Code - Intake Air Temperature Circuit Low Input

Common Causes of P0112 2010 Nissan Pathfinder

  1. Faulty or failed IAT sensor
  2. Damaged or corroded sensor connector
  3. Wiring issues such as a short or open circuit
  4. Malfunctioning ECM
  5. Incorrect air-fuel mixture due to a different engine issue

Symptoms of P0112 2010 Nissan Pathfinder

  1. Decreased fuel efficiency
  2. Poor engine performance
  3. Rough idling or stalling
  4. Hesitation or lack of acceleration
  5. Increased emissions

How to Fix P0112 2010 Nissan Pathfinder

  1. Begin by locating the IAT sensor, typically found near the air intake manifold.
  2. Inspect the sensor and its connector for any visible damage, corrosion, or loose connections.
  3. Test the IAT sensor using a multimeter to verify its resistance and voltage readings.
  4. If the sensor is faulty, replace it with a new one, ensuring proper installation and connection.
  5. Clear the DTC using an OBD-II scanner and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P0112 2010 Nissan Pathfinder

The typical repair costs for addressing the P0112 code on a 2010 Nissan Pathfinder can range from $100 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. For a more precise estimate, it's advisable to check local rates before proceeding with the repair.

What does this mean?

Tech Notes for P0112 2010 Nissan Pathfinder

Intake Air Temperature (IAT) sensor is built into the Mass Air Flow (MAF) sensor. Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or 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.



When is the Code Detected?

An excessively low voltage from the sensor is sent to ECM.

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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 2010 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0112 in a 2010 Nissan Pathfinder?

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

2. What does the OBDII code P0112 "Intake Air Temperature Circuit Low Input" mean for a 2010 Nissan Pathfinder?

This code indicates that the intake air temperature sensor is reporting a temperature that is lower than the normal operating range.

3. What are the possible causes of OBDII code P0112 in a 2010 Nissan Pathfinder?

Potential causes include a faulty intake air temperature sensor, damaged wiring or connectors, a disconnected sensor, or issues with the PCM (powertrain control module).

4. How can I diagnose the OBDII code P0112 in my 2010 Nissan Pathfinder?

You can diagnose this code by checking the intake air temperature sensor for proper voltage, inspecting the sensor's wiring and connectors for damage, and verifying the sensor's resistance with a multimeter.

5. Can a dirty air filter trigger the OBDII code P0112 in a 2010 Nissan Pathfinder?

Yes, a dirty air filter can affect the intake air temperature readings, potentially leading to the triggering of code P0112. It's essential to ensure the air filter is clean and properly installed.

6. Is it safe to drive my 2010 Nissan Pathfinder with the OBDII code P0112 active?

It is generally not recommended to drive with this code active, as it can lead to poor engine performance and potential further damage. It's advisable to address the issue promptly.

7. How can I repair OBDII code P0112 in my 2010 Nissan Pathfinder?

Repair options include replacing the intake air temperature sensor, repairing any damaged wiring or connectors, reconnecting any disconnected components, or seeking assistance from a qualified mechanic.

8. Can a DIY enthusiast fix the OBDII code P0112 issue in a 2010 Nissan Pathfinder?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address this issue by following the proper diagnostic and repair procedures. However, seeking professional help is recommended if unsure.

9. Will resetting the OBDII codes make the P0112 code disappear in a 2010 Nissan Pathfinder?

Resetting the codes may temporarily clear the P0112 code, but it's crucial to address the underlying issue causing the code to prevent it from reoccurring. Otherwise, the code is likely to return.

10. How can I prevent OBDII code P0112 from appearing in my 2010 Nissan Pathfinder in the future?

Regular maintenance, such as checking and replacing sensors as needed, ensuring proper air filter maintenance, and addressing any engine-related issues promptly, can help prevent the recurrence of code P0112.

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