AutoCodesHyundai – P0111 Hyundai

P0111 Hyundai Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem

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
P0111 Hyundai indicates Intake Air Temperature Sensor 1 Circuit Range/Performance Problem.
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 31,170
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0111 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 P0111 Hyundai - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem - AutoCodes.com
P0111 Hyundai Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem

What are the Possible Causes of the DTC P0111 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 P0111 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 P0111 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.

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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 P0111 Hyundai Code

1. What does the OBDII code P0111 indicate on a Hyundai?

- The code P0111 indicates that there is an issue with the Intake Air Temperature (IAT) Sensor 1 Circuit, specifically related to its range or performance.

2. What are common symptoms of the P0111 code in a Hyundai?

- Common symptoms include a check engine light, erratic engine behavior like rough idling or difficulty starting, and possibly a decrease in fuel efficiency.

3. What can cause the P0111 code to appear in a Hyundai?

- Causes can include a faulty or dirty intake air temperature sensor, wiring issues like shorts or corroded connectors, or problems with the engine control module (ECM).

4. How do you diagnose the P0111 code on a Hyundai?

- Diagnosis involves checking the intake air temperature sensor and its wiring for damage or dirt, using a scan tool to read the sensor's output, and comparing it to expected values based on ambient conditions.

5. What steps should be taken to fix the P0111 code on a Hyundai?

- Repair steps might include cleaning or replacing the intake air temperature sensor, repairing or replacing any damaged wiring, and ensuring all connections are secure.

6. Can I drive my Hyundai with the P0111 code?

- While you can drive with this code, it’s advisable to address the issue as soon as possible to avoid potential engine performance problems or damage.

7. How urgent is it to address the P0111 code in a Hyundai?

- It is moderately urgent to repair this issue, as prolonged driving with an inaccurate temperature reading can lead to inefficient engine performance and increased emissions.

8. What tools are needed to diagnose and repair the P0111 code?

- Tools needed may include a digital multimeter, an OBDII scanner, and basic hand tools for accessing and replacing the sensor.

9. Is the P0111 code the same across all models of Hyundai?

- Yes, the P0111 code has the same meaning for the intake air temperature sensor circuit across all Hyundai models, although the repair specifics might vary slightly depending on the model.

Discuss the causes and fixes for P0111 Hyundai OBDII Code

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