AutoCodes – Hyundai – P0112 Hyundai

P0112 Hyundai Code - Intake Air Temperature Sensor 1 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 Hyundai indicates Intake Air Temperature Sensor 1 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 28,122

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 Hyundai 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 Hyundai - Intake Air Temperature Sensor 1 Circuit Low Input - AutoCodes.com — P0112 Hyundai Code - Intake Air Temperature Sensor 1 Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 Hyundai?

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 Hyundai?

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 Hyundai 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 Hyundai 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 Hyundai Code

1. What are the common symptoms of OBDII code P0112 in a Hyundai?

- Common symptoms include rough engine idle, decreased fuel efficiency, poor acceleration, and potential stalling of the vehicle.

2. What does the OBDII code P0112 on a Hyundai indicate?

- The code P0112 indicates that the Intake Air Temperature (IAT) Sensor 1 Circuit is registering a low input, which can affect the engine's performance.

3. What are the possible causes of the OBDII code P0112 in a Hyundai?

- Possible causes include a faulty intake air temperature sensor, damaged sensor wiring, a disconnected sensor, or issues with the sensor circuit.

4. How can I diagnose the Intake Air Temperature (IAT) Sensor 1 Circuit in my Hyundai?

- Diagnose by checking the sensor's wiring for any damage, ensuring the sensor is properly connected, and testing the sensor itself for proper functionality using a multimeter.

5. Can a dirty air filter trigger the OBDII code P0112 in a Hyundai?

- Yes, a dirty air filter can disrupt the airflow around the intake air temperature sensor, leading to false readings and potentially triggering the P0112 code.

6. Is it safe to continue driving my Hyundai with the OBDII code P0112 present?

- It is not recommended to continue driving with the P0112 code as it can lead to poor engine performance and potential long-term damage if left unresolved.

7. Are there any DIY repair tips for fixing the OBDII code P0112 in a Hyundai?

- DIY repair tips include checking and cleaning the intake air temperature sensor, inspecting the sensor's wiring for damage, and ensuring proper sensor connection.

8. Can a mechanic reset the OBDII code P0112 without fixing the underlying issue?

- Yes, a mechanic can reset the code, but it is crucial to address the root cause of the P0112 code to prevent it from reoccurring and potentially causing further issues.

9. How much does it typically cost to repair the OBDII code P0112 in a Hyundai?

- The cost of repair varies depending on the exact cause of the P0112 code, but it can range from $100 to $300 for parts and labor at a mechanic's shop.

10. Will replacing the intake air temperature sensor resolve the OBDII code P0112 in my Hyundai?

- In many cases, replacing the faulty intake air temperature sensor can resolve the P0112 code, but it is essential to diagnose the issue correctly before proceeding with the repair.