AutoCodes – Infiniti – P0112 2004 Infiniti G35

P0112 2004 Infiniti G35 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 Infiniti G35 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 4,892

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 Infiniti G35 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 Infiniti G35 - Intake Air Temperature Circuit Low Input - AutoCodes.com — P0112 2004 Infiniti G35 Code - Intake Air Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2004 Infiniti G35?

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 Infiniti G35?

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 Infiniti G35 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 Infiniti G35 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 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0112 in a 2004 Infiniti G35?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and in some cases, the Check Engine light may illuminate.

2. What does the OBDII code P0112 indicating "Intake Air Temperature Circuit Low Input" mean for a 2004 Infiniti G35?

- This code indicates that the Engine Control Module (ECM) has detected a low input signal from the Intake Air Temperature (IAT) sensor.

3. What are the possible causes of OBDII code P0112 in a 2004 Infiniti G35?

- Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, a disconnected or malfunctioning IAT sensor, or a problem with the ECM.

4. How can I diagnose the OBDII code P0112 in my 2004 Infiniti G35?

- You can diagnose this code by visually inspecting the IAT sensor and its wiring, testing the sensor's resistance with a multimeter, and using a scan tool to monitor IAT sensor data.

5. Can I drive my 2004 Infiniti G35 with the OBDII code P0112?

- It is not recommended to drive the vehicle with this code as it can lead to poor engine performance and potential damage. It's best to address the issue promptly.

6. How can I repair OBDII code P0112 in a 2004 Infiniti G35?

- Repair options include replacing the faulty IAT sensor, repairing damaged wiring or connectors, ensuring the sensor is properly connected, or addressing any ECM issues.

7. Will resetting the OBDII code P0112 in my 2004 Infiniti G35 make it go away permanently?

- Resetting the code may temporarily clear the Check Engine light, but if the underlying issue is not fixed, the code is likely to reappear after driving the vehicle.

8. Are there any DIY tips for troubleshooting OBDII code P0112 in a 2004 Infiniti G35?

- DIY tips include checking the IAT sensor for dirt or debris, ensuring proper sensor connection, inspecting wiring for damage, and consulting the vehicle's service manual for guidance.

9. How much does it typically cost to repair OBDII code P0112 in a 2004 Infiniti G35 at a mechanic or dealership?

- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $300 for parts and labor at a mechanic or dealership.

10. Is OBDII code P0112 a common issue in 2004 Infiniti G35 vehicles?

- While not extremely common, issues with the IAT sensor leading to code P0112 can occur in 2004 Infiniti G35 vehicles due to sensor failure or wiring issues.