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P0112 2007 Nissan Pathfinder Code - Intake Air Temperature Circuit Low Input

Quick Answer

The P0112 diagnostic trouble code (DTC) for a 2007 Nissan Pathfinder indicates that there is a low input signal from the Intake Air Temperature (IAT) sensor circuit. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring in the sensor circuit, Poor connections or loose terminals in the sensor 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 2007 Nissan Pathfinder indicates Intake Air Temperature Circuit Low Input.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged or corroded wiring in the sensor circuit, Poor connections or loose terminals in the sensor 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 10, 2024
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Code P0112 2007 Nissan Pathfinder Description

The P0112 diagnostic trouble code (DTC) for a 2007 Nissan Pathfinder indicates that there is a low input signal from the Intake Air Temperature (IAT) sensor circuit. The IAT sensor is responsible for measuring the temperature of the air entering the engine's intake system. This information is crucial for the engine control module (ECM) to adjust fuel delivery and ignition timing, ensuring optimal performance and efficiency.

OBDII Code P0112 2007 Nissan Pathfinder - Intake Air Temperature Circuit Low Input
P0112 2007 Nissan Pathfinder Code - Intake Air Temperature Circuit Low Input

Common Causes of P0112 2007 Nissan Pathfinder

  1. Faulty Intake Air Temperature (IAT) sensor
  2. Damaged or corroded wiring in the sensor circuit
  3. Poor connections or loose terminals in the sensor circuit
  4. Malfunctioning Engine Control Module (ECM)
  5. Environmental factors such as exposure to extreme temperatures impacting sensor performance

Symptoms of P0112 2007 Nissan Pathfinder

  1. Decreased fuel efficiency
  2. Engine performance issues such as hesitation or lack of power
  3. Rough idling or stalling
  4. Difficulty starting the vehicle
  5. Illumination of the check engine light

How to Fix P0112 2007 Nissan Pathfinder

  1. Begin by locating the IAT sensor, typically located near the air intake manifold.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the IAT sensor using a multimeter to determine if it is functioning correctly.
  4. If the sensor is faulty, replace it with a new one following manufacturer guidelines.
  5. Clear the DTC using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0112 2007 Nissan Pathfinder

The cost of repairing a P0112 code on a 2007 Nissan Pathfinder can vary depending on the specific cause of the issue. In general, replacing an Intake Air Temperature (IAT) sensor can cost between $50 and $150, including parts and labor. However, if the problem lies with wiring or the ECM, the repair costs could be higher. Additionally, diagnosis time and labor rates at auto repair shops can impact the overall cost. It is recommended to consult with a certified mechanic to receive an accurate estimate based on your vehicle's specific needs and location.

What does this mean?

Tech Notes for P0112 2007 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 2007 Nissan Pathfinder Code

1. What does OBDII code P0112 mean for a 2007 Nissan Pathfinder?

The code P0112 indicates a low input in the intake air temperature circuit of the vehicle.

2. What are the common symptoms of OBDII code P0112 in a 2007 Nissan Pathfinder?

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

3. What are the potential causes of OBDII code P0112 in a 2007 Nissan Pathfinder?

Potential causes include a faulty intake air temperature sensor, damaged wiring or connectors in the intake air temperature circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the issue causing OBDII code P0112 in my 2007 Nissan Pathfinder?

You can diagnose the issue by checking the intake air temperature sensor for proper operation, inspecting the wiring and connectors for any damage, and using a scan tool to monitor the sensor's readings.

5. Can I still drive my 2007 Nissan Pathfinder with OBDII code P0112?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair OBDII code P0112 in my 2007 Nissan Pathfinder?

Repair options include replacing the intake air temperature sensor, repairing any damaged wiring or connectors, or reprogramming the ECM if necessary.

7. Are there any DIY tips for troubleshooting OBDII code P0112 in a 2007 Nissan Pathfinder?

DIY tips include checking the sensor for any visible damage, ensuring proper electrical connections, and using a multimeter to test the sensor's resistance.

8. Will resetting the OBDII code P0112 in my 2007 Nissan Pathfinder make it go away permanently?

Simply resetting the code may temporarily clear the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

9. How much does it typically cost to repair OBDII code P0112 in a 2007 Nissan Pathfinder?

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 OBDII code P0112 in a 2007 Nissan Pathfinder cause damage to the engine?

While the code itself does not directly cause engine damage, ignoring the underlying issue leading to the code can result in poor engine performance and potential long-term damage if left unresolved.

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