AutoCodes – Nissan – P0112 2004 Nissan Maxima

P0112 2004 Nissan Maxima 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 2004 Nissan Maxima 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 3,145

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
Cost to Diagnose
FAQs
Comments
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Code P0112 2004 Nissan Maxima 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 2004 Nissan Maxima - Intake Air Temperature Circuit Low Input - AutoCodes.com — P0112 2004 Nissan Maxima Code - Intake Air Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2004 Nissan Maxima?

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 2004 Nissan Maxima?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0112 2004 Nissan Maxima 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 2004 Nissan Maxima 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 2004 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0112 on a 2004 Nissan Maxima?

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

2. What can cause the Intake Air Temperature Circuit Low Input code (P0112) on a 2004 Nissan Maxima?

- The code P0112 can be triggered by a faulty intake air temperature sensor, damaged wiring or connectors, or a problem with the engine control module (ECM).

3. How can I diagnose the Intake Air Temperature Circuit Low Input code (P0112) on my 2004 Nissan Maxima?

- You can diagnose the issue by inspecting the intake air temperature sensor, checking the wiring for any damage, and using an OBDII scanner to read the code and data from the sensor.

4. Can a dirty air filter cause code P0112 on a 2004 Nissan Maxima?

- A dirty air filter itself is unlikely to cause the P0112 code, but it can affect the overall performance of the engine by restricting airflow, leading to related issues.

5. What are the repair options for resolving OBDII code P0112 on a 2004 Nissan Maxima?

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

6. Is it safe to continue driving my 2004 Nissan Maxima with OBDII code P0112?

- It is generally not recommended to continue driving with the P0112 code present, as it can lead to further engine problems and potential damage if left unresolved.

7. How much does it typically cost to repair OBDII code P0112 on a 2004 Nissan Maxima?

- The cost of repairing the P0112 code can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can I reset the OBDII code P0112 on my 2004 Nissan Maxima without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is not recommended to do so without addressing the root cause, as the problem will likely reoccur.

9. Will a P0112 code on a 2004 Nissan Maxima affect emissions testing?

- Yes, the P0112 code can cause your vehicle to fail emissions testing, as it indicates a problem with the intake air temperature sensor, which can affect emissions control.

10. How long does it typically take to repair OBDII code P0112 on a 2004 Nissan Maxima?

- The repair time for the P0112 code can vary depending on the exact cause of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours to complete.