AutoCodes – Infiniti – P0112 2005 Infiniti G35

P0112 2005 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 2005 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 3,803

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 2005 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 2005 Infiniti G35 - Intake Air Temperature Circuit Low Input - AutoCodes.com — P0112 2005 Infiniti G35 Code - Intake Air Temperature Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2005 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 2005 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 2005 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.

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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 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0112 in a 2005 Infiniti G35?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and potentially stalling.

2. What does the OBDII code P0112 in a 2005 Infiniti G35 indicate?

- OBDII code P0112 indicates that there is a low input signal from the Intake Air Temperature (IAT) sensor circuit.

3. What are the possible causes of OBDII code P0112 in a 2005 Infiniti G35?

- Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or issues with the engine control module (ECM).

4. How can I diagnose the cause of OBDII code P0112 in a 2005 Infiniti G35?

- You can use a multimeter to test the IAT sensor's resistance, check for damaged wiring, and inspect the connectors for corrosion or loose connections.

5. Can a dirty air filter trigger OBDII code P0112 in a 2005 Infiniti G35?

- Yes, a dirty air filter can affect the IAT sensor readings and potentially lead to a P0112 code being triggered.

6. Is it safe to continue driving my 2005 Infiniti G35 with OBDII code P0112?

- It is not recommended to drive your vehicle with a P0112 code as it can cause performance issues and potentially lead to other problems if left unresolved.

7. How can I reset OBDII code P0112 in a 2005 Infiniti G35?

- You can reset the code using an OBDII scanner or by disconnecting the car's battery for a few minutes.

8. Will replacing the IAT sensor fix OBDII code P0112 in a 2005 Infiniti G35?

- Replacing the IAT sensor is a common fix for a P0112 code, but it's important to diagnose the issue properly to ensure the sensor is the root cause.

9. Can extreme weather conditions trigger OBDII code P0112 in a 2005 Infiniti G35?

- Yes, extreme temperatures can affect the IAT sensor readings and potentially lead to a low input signal triggering the P0112 code.

10. How much does it typically cost to repair OBDII code P0112 in a 2005 Infiniti G35?

- The cost of repairing a P0112 code can vary depending on the root cause, but it may involve replacing the IAT sensor, repairing wiring, or addressing ECM issues.