AutoCodes – Nissan – P0112 2008 Nissan Pathfinder

P0112 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder 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 3,007

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 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder - Intake Air Temperature Circuit Low Input - AutoCodes.com — P0112 2008 Nissan Pathfinder Code - Intake Air Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2008 Nissan Pathfinder?

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 2008 Nissan Pathfinder?

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 (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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0112 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder code?

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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 2008 Nissan Pathfinder Code

1. What does OBDII code P0112 on a 2008 Nissan Pathfinder mean?

The code P0112 indicates a problem with the Intake Air Temperature Circuit, specifically a low input signal.

2. What are the common symptoms of OBDII code P0112 on a 2008 Nissan Pathfinder?

Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potential stalling.

3. What are the possible causes of OBDII code P0112 on a 2008 Nissan Pathfinder?

Potential causes of this code include a faulty intake air temperature sensor, damaged wiring or connectors, or issues with the engine control module (ECM).

4. How can I diagnose the Intake Air Temperature Circuit low input issue on a 2008 Nissan Pathfinder?

Diagnosis involves testing the intake air temperature sensor using a multimeter, checking the wiring for any damage, and inspecting connectors for corrosion or loose connections.

5. Can I continue to drive my 2008 Nissan Pathfinder with OBDII code P0112?

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

6. How can I repair OBDII code P0112 on a 2008 Nissan Pathfinder?

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

7. Are there any DIY tips for fixing OBDII code P0112 on a 2008 Nissan Pathfinder?

DIY tips include ensuring the sensor is clean and free of debris, checking for any visible damage to wiring, and consulting the vehicle's service manual for specific instructions.

8. How much does it typically cost to fix OBDII code P0112 on a 2008 Nissan Pathfinder?

Costs can vary depending on the specific issue, but replacing the intake air temperature sensor can range from $50 to $150, while professional labor costs may add to the total.

9. Will resetting the OBDII code P0112 on a 2008 Nissan Pathfinder make it go away permanently?

Resetting the code may temporarily clear it, but if the underlying issue is not addressed, the code is likely to reappear. It's essential to diagnose and fix the root cause.

10. Can a mechanic easily fix OBDII code P0112 on a 2008 Nissan Pathfinder?

A qualified mechanic should be able to diagnose and repair the Intake Air Temperature Circuit low input issue efficiently, ensuring proper functioning of the vehicle.