AutoCodes – Kia – P0071 Kia

P0071 Kia Code - Ambient Air Temperature Sensor Performance

Quick Answer

The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection. 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: P0071 Kia indicates Ambient Air Temperature Sensor Performance.
Common causes: Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection.
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 1,599

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 Oct 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0071 Kia Description

The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. The ECM monitors the voltage drop across the sensor, which is inversely proportional to temperature. When the ambient air temperature is cold, the resistance of the sensor is high. When the ambient air temperature is warm, the resistance of the sensors is low. The engine control module converts the voltage value to a temperature value and sends the value to the Display Module via serial data. The Display Module displays the temperature. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that during the first 20s of run time after the 1 hour soaking period, the difference between the outside air temperature and the engine intake air temperature is greater than 30°C (86°F).

OBDII Code P0071 Kia - Ambient Air Temperature Sensor Performance - AutoCodes.com — P0071 Kia Code - Ambient Air Temperature Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P0071 Kia?

Faulty Ambient Air Temperature Sensor
Ambient Air Temperature Sensor harness is open or shorted
Ambient Air Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0071 Kia?

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 P0071 Kia 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 P0071 Kia Code

1. What are the common symptoms of OBDII code P0071 in a Kia related to the Ambient Air Temperature Sensor?

- Common symptoms include inaccurate temperature readings on the dashboard, poor fuel efficiency, and potential issues with the vehicle's air conditioning system.

2. What can cause the OBDII code P0071 in a Kia?

- The code P0071 in a Kia is typically triggered by a faulty ambient air temperature sensor, damaged wiring or connectors, or issues with the sensor's circuit.

3. How can I diagnose the Ambient Air Temperature Sensor performance issue causing code P0071 in my Kia?

- To diagnose the problem, start by visually inspecting the sensor and its wiring for any visible damage. You can also use a multimeter to test the sensor's resistance and compare it to the manufacturer's specifications.

4. Is it safe to continue driving my Kia with the OBDII code P0071 related to the Ambient Air Temperature Sensor?

- While the vehicle may still be operational with this code, it is not recommended to drive for an extended period as it can lead to poor engine performance and potential damage over time.

5. How can I repair the Ambient Air Temperature Sensor issue causing code P0071 in my Kia?

- The most common repair for this issue is to replace the ambient air temperature sensor. Ensure the new sensor is compatible with your Kia model and follow the manufacturer's guidelines for installation.

6. Can a dirty or obstructed ambient air temperature sensor cause the OBDII code P0071 in a Kia?

- Yes, a dirty or obstructed sensor can impact its performance and trigger the code P0071. Ensure the sensor is clean and free from any debris that may affect its readings.

7. Are there any quick fixes or temporary solutions for the OBDII code P0071 related to the Ambient Air Temperature Sensor in a Kia?

- Quick fixes like cleaning the sensor or resetting the trouble code may temporarily resolve the issue, but it is recommended to address the root cause by replacing the sensor for a long-term solution.

8. Can extreme weather conditions affect the performance of the ambient air temperature sensor in a Kia, leading to code P0071?

- Yes, extreme temperatures can impact the sensor's readings and trigger the code P0071. Ensure the sensor is properly insulated or shielded to prevent exposure to harsh weather conditions.

9. Will resetting the OBDII code P0071 related to the Ambient Air Temperature Sensor in my Kia make the issue disappear permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue with the sensor persists, the code is likely to reappear. It's essential to diagnose and fix the root cause for a lasting solution.

10. How can I prevent the OBDII code P0071 from reoccurring in my Kia after repairing the Ambient Air Temperature Sensor issue?

- Regularly inspect and maintain the ambient air temperature sensor, as well as its wiring and connections, to prevent future issues. Follow proper installation procedures when replacing the sensor to ensure proper functionality.